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HOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps.ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon. VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram willSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes from COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles toHOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps.ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon. VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram willSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes from COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles to GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on a NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon.VECTORSCOPE
Vectorscope. This online vectorscope uses stereo audio as its input. The two channels are plotted against each other on the x and y axes to produce a range of interesting patterns. Physics Sound Audio. Please note, the data for the Ballerina and Dolphin curves takes a few seconds to compute. Equations for curves are taken from Wolfram Alpha.
WAVE INTERFERENCE AND BEAT FREQUENCY An interactive demo which enables you to both see and hear the result of adding two sine waves of different frequencies. The demo above displays two sine waves, coloured blue and red. The equations of these lines are: where the frequencies of each wave are f 1 and f 2 respectively, and t is the time. You can change the waves' frequenciesby
PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion.KEPLER'S THIRD LAW
Kepler's Third Law tells us that the square of the orbital period of an orbiting body is proportional to the cube of the semi-major axis of its orbit. The relationship can be written to give us the period, T : T = 2 π a 3 G M. Where a is the semi-major axis (which, in the caseof
HABERDASHER'S PUZZLE This puzzle was first solved by Henry Dudeney in 1903, and is named the Haberdasher's puzzle because the four shapes bear a resemblance to pieces of cloth you might find in a haberdashery (a shop selling bits and pieces related to sewing). This type of puzzle is called a dissection puzzle. Anyone finding the above puzzle interesting, mayalso
STATISTICS OF ROLLING DICE Statistics of rolling dice. If you roll a fair, 6-sided die, there is an equal probability that the die will land on any given side. That probability is 1/6. This means that if you roll the die 600 times, each face would be expected to appear 100 times. You can simulate thisexperiment
RHODONEA CURVES (ROSES) An interactive demonstration of Rhodonea curves, also known as Roses. Maths Geometry Polar plot parametric. A rhodonea curve is a graph of the following polar equation: r = A c o s ( k θ) where k = m n. The polar equation can also be written as two Cartesian parametric equations: (1) x = A c o s ( k t) c o s ( t) (2) y = A c o s ( k t) si n
HOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps.ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon. VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram willSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles to COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes fromHOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps.ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon. VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram willSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes from COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles to GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on a NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon. WAVE INTERFERENCE AND BEAT FREQUENCY An interactive demo which enables you to both see and hear the result of adding two sine waves of different frequencies. The demo above displays two sine waves, coloured blue and red. The equations of these lines are: where the frequencies of each wave are f 1 and f 2 respectively, and t is the time. You can change the waves' frequenciesby
VECTORSCOPE
Vectorscope. This online vectorscope uses stereo audio as its input. The two channels are plotted against each other on the x and y axes to produce a range of interesting patterns. Physics Sound Audio. Please note, the data for the Ballerina and Dolphin curves takes a few seconds to compute. Equations for curves are taken from Wolfram Alpha.
PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion.KEPLER'S THIRD LAW
Kepler's Third Law tells us that the square of the orbital period of an orbiting body is proportional to the cube of the semi-major axis of its orbit. The relationship can be written to give us the period, T : T = 2 π a 3 G M. Where a is the semi-major axis (which, in the caseof
HABERDASHER'S PUZZLE This puzzle was first solved by Henry Dudeney in 1903, and is named the Haberdasher's puzzle because the four shapes bear a resemblance to pieces of cloth you might find in a haberdashery (a shop selling bits and pieces related to sewing). This type of puzzle is called a dissection puzzle. Anyone finding the above puzzle interesting, mayalso
STATISTICS OF ROLLING DICE Statistics of rolling dice. If you roll a fair, 6-sided die, there is an equal probability that the die will land on any given side. That probability is 1/6. This means that if you roll the die 600 times, each face would be expected to appear 100 times. You can simulate thisexperiment
RHODONEA CURVES (ROSES) An interactive demonstration of Rhodonea curves, also known as Roses. Maths Geometry Polar plot parametric. A rhodonea curve is a graph of the following polar equation: r = A c o s ( k θ) where k = m n. The polar equation can also be written as two Cartesian parametric equations: (1) x = A c o s ( k t) c o s ( t) (2) y = A c o s ( k t) si n
HOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps.ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon. VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram willSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles to COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes fromHOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps.ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon. VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram willSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles to COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes from GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on a NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon. WAVE INTERFERENCE AND BEAT FREQUENCY An interactive demo which enables you to both see and hear the result of adding two sine waves of different frequencies. The demo above displays two sine waves, coloured blue and red. The equations of these lines are: where the frequencies of each wave are f 1 and f 2 respectively, and t is the time. You can change the waves' frequenciesby
VECTORSCOPE
Vectorscope. This online vectorscope uses stereo audio as its input. The two channels are plotted against each other on the x and y axes to produce a range of interesting patterns. Physics Sound Audio. Please note, the data for the Ballerina and Dolphin curves takes a few seconds to compute. Equations for curves are taken from Wolfram Alpha.
PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion.KEPLER'S THIRD LAW
Kepler's Third Law tells us that the square of the orbital period of an orbiting body is proportional to the cube of the semi-major axis of its orbit. The relationship can be written to give us the period, T : T = 2 π a 3 G M. Where a is the semi-major axis (which, in the caseof
HABERDASHER'S PUZZLE This puzzle was first solved by Henry Dudeney in 1903, and is named the Haberdasher's puzzle because the four shapes bear a resemblance to pieces of cloth you might find in a haberdashery (a shop selling bits and pieces related to sewing). This type of puzzle is called a dissection puzzle. Anyone finding the above puzzle interesting, mayalso
STATISTICS OF ROLLING DICE Statistics of rolling dice. If you roll a fair, 6-sided die, there is an equal probability that the die will land on any given side. That probability is 1/6. This means that if you roll the die 600 times, each face would be expected to appear 100 times. You can simulate thisexperiment
RHODONEA CURVES (ROSES) An interactive demonstration of Rhodonea curves, also known as Roses. Maths Geometry Polar plot parametric. A rhodonea curve is a graph of the following polar equation: r = A c o s ( k θ) where k = m n. The polar equation can also be written as two Cartesian parametric equations: (1) x = A c o s ( k t) c o s ( t) (2) y = A c o s ( k t) si n
HOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps. VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal aboveSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound.VECTORSCOPE
NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes from LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles to STATISTICS OF ROLLING DICE Statistics of rolling dice. If you roll a fair, 6-sided die, there is an equal probability that the die will land on any given side. That probability is 1/6. This means that if you roll the die 600 times, each face would be expected to appear 100 times. You can simulate thisexperiment
HOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps. VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal aboveSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound.VECTORSCOPE
NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes from LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles to STATISTICS OF ROLLING DICE Statistics of rolling dice. If you roll a fair, 6-sided die, there is an equal probability that the die will land on any given side. That probability is 1/6. This means that if you roll the die 600 times, each face would be expected to appear 100 times. You can simulate thisexperiment
NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on a SPEED OF LIGHT VISUALIZER Speed of Light Visualizer. An interactive demo showing how long a signal travelling at the speed of light takes to get across the world. Physics Light speed geodesic. The demo above shows two markers on a map of the world. The markers are connected by a geodesic, which is3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram willCONTOUR PLOTTER
Contour Plotter. You can use this tool to create contour lines for any function you input. Maths Geometry Contour. Contour Lines Key: If you've ever looked at a map, particularly of a hilly or mountainous region, you may have noticed groups of lines like this: These are known as contour lines, and every point on the line is at the sameheight.
PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion. CONWAY'S GAME OF LIFE Conway's Game of Life. Conway's Game of Life is a game invented by mathematician John Conway in 1970. The rules are as follows: Each cell lives in a square in a rectangular grid. A cell can either be dead or alive (alive cells are coloured blue in our demo). Before you start the game, you need to AMPLITUDE MODULATION An interactive demo which enables you to both see and hear the result of multiplying a sine wave with a cosine amplitude envelope.KEPLER'S THIRD LAW
Kepler's Third Law tells us that the square of the orbital period of an orbiting body is proportional to the cube of the semi-major axis of its orbit. The relationship can be written to give us the period, T : T = 2 π a 3 G M. Where a is the semi-major axis (which, in the caseof
WAVELENGTH TO COLOUR RELATIONSHIP Wavelength to Colour Relationship. A simple tool to convert a wavelength in nm to an RGB, hexadecimal or HSL colour. Physics Light Colour. Over the course of millions of years, the human eye has evolved to detect light in the range 380—780nm, a portion of the electromagnetic spectrum known as visible light, which we perceive ascolour.
HOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps. GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on a VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
SPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes from NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion. STATISTICS OF ROLLING DICE Statistics of rolling dice. If you roll a fair, 6-sided die, there is an equal probability that the die will land on any given side. That probability is 1/6. This means that if you roll the die 600 times, each face would be expected to appear 100 times. You can simulate thisexperiment
HOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps. GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on a VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
SPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes from NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion. STATISTICS OF ROLLING DICE Statistics of rolling dice. If you roll a fair, 6-sided die, there is an equal probability that the die will land on any given side. That probability is 1/6. This means that if you roll the die 600 times, each face would be expected to appear 100 times. You can simulate thisexperiment
ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon. NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on a3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram will PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion. LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles to SPEED OF LIGHT VISUALIZER Speed of Light Visualizer. An interactive demo showing how long a signal travelling at the speed of light takes to get across the world. Physics Light speed geodesic. The demo above shows two markers on a map of the world. The markers are connected by a geodesic, which is WAVELENGTH TO COLOUR RELATIONSHIP Wavelength to Colour Relationship. A simple tool to convert a wavelength in nm to an RGB, hexadecimal or HSL colour. Physics Light Colour. Over the course of millions of years, the human eye has evolved to detect light in the range 380—780nm, a portion of the electromagnetic spectrum known as visible light, which we perceive ascolour.
CONWAY'S GAME OF LIFE Conway's Game of Life. Conway's Game of Life is a game invented by mathematician John Conway in 1970. The rules are as follows: Each cell lives in a square in a rectangular grid. A cell can either be dead or alive (alive cells are coloured blue in our demo). Before you start the game, you need toKEPLER'S THIRD LAW
Kepler's Third Law tells us that the square of the orbital period of an orbiting body is proportional to the cube of the semi-major axis of its orbit. The relationship can be written to give us the period, T : T = 2 π a 3 G M. Where a is the semi-major axis (which, in the caseof
HOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps. GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on a VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
SPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes from NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion. STATISTICS OF ROLLING DICE Statistics of rolling dice. If you roll a fair, 6-sided die, there is an equal probability that the die will land on any given side. That probability is 1/6. This means that if you roll the die 600 times, each face would be expected to appear 100 times. You can simulate thisexperiment
HOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps. GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on a VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
SPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes from NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion. STATISTICS OF ROLLING DICE Statistics of rolling dice. If you roll a fair, 6-sided die, there is an equal probability that the die will land on any given side. That probability is 1/6. This means that if you roll the die 600 times, each face would be expected to appear 100 times. You can simulate thisexperiment
ORBIT SIMULATOR
Orbit Simulator. An interactive demonstration of an orbit. The above demo shows how a body behaves when under the influence of the gravity of a much more massive object. In our example, we have chosen this to be a moon orbiting a planet, but it could equally be a planet orbiting a star. You can click anywhere on the demo to reposition the moon. NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on a3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram will PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion. LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles to SPEED OF LIGHT VISUALIZER Speed of Light Visualizer. An interactive demo showing how long a signal travelling at the speed of light takes to get across the world. Physics Light speed geodesic. The demo above shows two markers on a map of the world. The markers are connected by a geodesic, which is WAVELENGTH TO COLOUR RELATIONSHIP Wavelength to Colour Relationship. A simple tool to convert a wavelength in nm to an RGB, hexadecimal or HSL colour. Physics Light Colour. Over the course of millions of years, the human eye has evolved to detect light in the range 380—780nm, a portion of the electromagnetic spectrum known as visible light, which we perceive ascolour.
CONWAY'S GAME OF LIFE Conway's Game of Life. Conway's Game of Life is a game invented by mathematician John Conway in 1970. The rules are as follows: Each cell lives in a square in a rectangular grid. A cell can either be dead or alive (alive cells are coloured blue in our demo). Before you start the game, you need toKEPLER'S THIRD LAW
Kepler's Third Law tells us that the square of the orbital period of an orbiting body is proportional to the cube of the semi-major axis of its orbit. The relationship can be written to give us the period, T : T = 2 π a 3 G M. Where a is the semi-major axis (which, in the caseof
HOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps. NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram will COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
WAVE INTERFERENCE AND BEAT FREQUENCY An interactive demo which enables you to both see and hear the result of adding two sine waves of different frequencies. The demo above displays two sine waves, coloured blue and red. The equations of these lines are: where the frequencies of each wave are f 1 and f 2 respectively, and t is the time. You can change the waves' frequenciesby
VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes fromSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles toHOME | ACADEMO.ORG
Academo. A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography Maths Music Physics.Some of
MAPS | ACADEMO.ORG
Day/Night Terminator Map. Earth Breathing. Earth at Night. Geodesics on the Earth. Interactive Light Pollution Map. Map of Earth's Gravity. Nuclear Bomb Craters on Google Maps. Open-pit mines on Google Maps. Shipwrecks on Google Maps. NUCLEAR BOMB CRATERS ON GOOGLE MAPS Ivy Mike. On November 1, 1952, Ivy Mike, a 10.4-12 megaton hydrogen bomb - the world's first - was detonated on Elugelab, on Enewetak Atoll, in the Pacific Ocean. The explosion completely vapourised the island, leaving a crater 1.9km wide and 50m deep. The overlapping adjacent crater is from the Hardtack 1 Koa test, which occured in May1958.
3D VECTOR PLOTTER
3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram will COLOUR-TEMPERATURE RELATIONSHIP Colour-Temperature Relationship. A tool to convert a temperature in Kelvin into a RGB colour. Physics Light Colour. As an object heats up, it begins to emit light. (If you're interested in the exact way in which this occurs, please head over to our demo of Planck's Law of Blackbody Radiation .) In very simple terms, a hotter object emitsmore
WAVE INTERFERENCE AND BEAT FREQUENCY An interactive demo which enables you to both see and hear the result of adding two sine waves of different frequencies. The demo above displays two sine waves, coloured blue and red. The equations of these lines are: where the frequencies of each wave are f 1 and f 2 respectively, and t is the time. You can change the waves' frequenciesby
VIRTUAL OSCILLOSCOPE An oscilloscope is a useful tool for anyone working with electrical signals because it provides a visual representation of the signal's shape, or waveform. This allows you to measure properties of the wave, such as amplitude or frequency. The initial signal above SHA-256 HASH GENERATOR SHA-256 Hash Generator. Use this tool to find the SHA-256 hash of any text/string you enter into the text box. SHA-256 is an algorithm that converts a string of text into another string, called a hash. The hash is always the same length: exactly 64 hexadecimal characters long. This is equivalent to 256 bits, which is where the name comes fromSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. LOGIC GATE SIMULATOR Logic Gate Simulator. A free, simple, online logic gate simulator. Investigate the behaviour of AND, OR, NOT, NAND, NOR and XOR gates. Select gates from the dropdown list and click "add node" to add more gates. Drag from the hollow circles to the solid circles to WAVE INTERFERENCE AND BEAT FREQUENCY An interactive demo which enables you to both see and hear the result of adding two sine waves of different frequencies. The demo above displays two sine waves, coloured blue and red. The equations of these lines are: where the frequencies of each wave are f 1 and f 2 respectively, and t is the time. You can change the waves' frequenciesby
GEODESICS ON THE EARTH Geodesics on the Earth. A geodesic is a line representing the shortest route between two points. In simple terms, it might help to think of this as the route a crow (or aeroplane) would fly to get from one point to another (ignoring any effects for wind). The demo above demonstrates how confusing geodesics can appear when displayed on aSPECTRUM ANALYZER
The spectrum analyzer above gives us a graph of all the frequencies that are present in a sound recording at a given time. The resulting graph is known as a spectrogram. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. SPEED OF LIGHT VISUALIZER Speed of Light Visualizer. An interactive demo showing how long a signal travelling at the speed of light takes to get across the world. Physics Light speed geodesic. The demo above shows two markers on a map of the world. The markers are connected by a geodesic, which isVECTORSCOPE
Vectorscope. This online vectorscope uses stereo audio as its input. The two channels are plotted against each other on the x and y axes to produce a range of interesting patterns. Physics Sound Audio. Please note, the data for the Ballerina and Dolphin curves takes a few seconds to compute. Equations for curves are taken from Wolfram Alpha.
STATISTICS OF ROLLING DICE Statistics of rolling dice. If you roll a fair, 6-sided die, there is an equal probability that the die will land on any given side. That probability is 1/6. This means that if you roll the die 600 times, each face would be expected to appear 100 times. You can simulate thisexperiment
KEPLER'S THIRD LAW
Kepler's Third Law tells us that the square of the orbital period of an orbiting body is proportional to the cube of the semi-major axis of its orbit. The relationship can be written to give us the period, T : T = 2 π a 3 G M. Where a is the semi-major axis (which, in the caseof
WAVELENGTH TO COLOUR RELATIONSHIP Wavelength to Colour Relationship. A simple tool to convert a wavelength in nm to an RGB, hexadecimal or HSL colour. Physics Light Colour. Over the course of millions of years, the human eye has evolved to detect light in the range 380—780nm, a portion of the electromagnetic spectrum known as visible light, which we perceive ascolour.
PLANCK'S LAW OF BLACK-BODY RADIATION Planck's Law of Black-body Radiation. Anyone who's ever used a toaster will have noticed that when the heating elements get hot, they start to emit light. Initially, when they're warming up, the colour is dark red. When they get hotter, they get brighter, and the colour is more orange. Similarly, next time you're stargazing, take a look at Orion. HABERDASHER'S PUZZLE This puzzle was first solved by Henry Dudeney in 1903, and is named the Haberdasher's puzzle because the four shapes bear a resemblance to pieces of cloth you might find in a haberdashery (a shop selling bits and pieces related to sewing). This type of puzzle is called a dissection puzzle. Anyone finding the above puzzle interesting, mayalso
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ACADEMO
A collection of interactive, educational demos and tools. It's completely free, and there's no need to register or sign-in. Click here to view all our demos, or click on of the buttons below to browse a specific category. Engineering Geography MathsMusic Physics
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