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RECENT POSTS IN THIS TOPIC
Nidahl Haddad: on 9/8/14 at 5:54am UTC, wrote Hi Franklin, Really liked the simlplicity of your demonstration of the...
Franklin Hu: on 5/20/14 at 15:08pm UTC, wrote Video Image Video URL http://youtu.be/9MGQJar8dNg ...
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Nidahl Haddad: on 9/8/14 at 5:54am UTC, wrote Hi Franklin, Really liked the simlplicity of your demonstration of the...
Franklin Hu: on 5/20/14 at 15:08pm UTC, wrote Video Image Video URL http://youtu.be/9MGQJar8dNg ...
RECENT FORUM POSTS
jim hughes: "I'm not a mathematician. So what I see here is some smart people who..." in Consciousness and the...
Steve Dufourny: "Hello FQXi, the members and all, I try to do my best to unite and convice..." in Global Collaboration
Lorraine Ford: "The idea of a smooth mathematical evolution of “the wave function”, and..." in Consciousness and the...
Georgina Woodward: "Broken machine: What do[es] I see next? The I that was, E.I, has not been..." in The Room in the Elephant:...
Lorraine Ford: "Hi Stefan, I hope that a good leader, and a good political party, is..." in The Present State of...
Lorraine Ford: "We live in an age of computing. But physics, mathematics and philosophy,..." in The Present State of...
Georgina Woodward: "I've copied the comment to the thread where it belongs. This orphan can be..." in The Room in the Elephant:...
Georgina Woodward: "Thank you John. What did you think about the questioning whether altitude..." in The Nature of Time
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click titles to read articles
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Microbead 'motor' exploits natural fluctuations for power.
Reconstructing Physics
New photon experiment gives new meta-framework, 'constructor theory,' a boost.
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Experiments seek to use quantum observations as fuel to power mini motors.
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FQXi FORUM
September 28, 2021
CATEGORY:
Show Me the Physics! Video Contest (2014)
[back]
TOPIC: Experiment to demonstrate conservation of angular momentum by Franklin Hu [refresh]
TOPIC: Experiment to demonstrate conservation of angular momentum by Franklin Hu [refresh]
Video Image
Video URL
http://youtu.be/9MGQJar8dNg
Video Description
Conservation of angular momentum causes a skater to spin faster when they bring their arms in. But just how much faster do they spin? The formula for the conservation of angular momentum says that if you have a spinning object and you reduce the radius of the object by half, it causes the object to quadruple its speed. How can you possible measure this directly? This video shows a clever setup using only commonly available household materials that demonstrates the quadrupling of the rotational speed.
Video Creator Bio
Franklin Hu is an independent amateur scientist living in Bothell WA. He is a graduate of MIT and works in software engineering as a profession.
Video URL
http://youtu.be/9MGQJar8dNg
Video Description
Conservation of angular momentum causes a skater to spin faster when they bring their arms in. But just how much faster do they spin? The formula for the conservation of angular momentum says that if you have a spinning object and you reduce the radius of the object by half, it causes the object to quadruple its speed. How can you possible measure this directly? This video shows a clever setup using only commonly available household materials that demonstrates the quadrupling of the rotational speed.
Video Creator Bio
Franklin Hu is an independent amateur scientist living in Bothell WA. He is a graduate of MIT and works in software engineering as a profession.
Hi Franklin,
Really liked the simlplicity of your demonstration of the conservation of angular momentum. I thought the visualization was quite effective. I do wish you had said a little more about the physics though!
I feel as though it may have been a bit stronger if you had spent a little more time guiding the audience through the phenomemon rather than explaining the device (which was cool as well, though a bit distracting).
Anyway, great demonstration!
If you have a moment, would you be so kind as to tell me what you thought about my video?
Really liked the simlplicity of your demonstration of the conservation of angular momentum. I thought the visualization was quite effective. I do wish you had said a little more about the physics though!
I feel as though it may have been a bit stronger if you had spent a little more time guiding the audience through the phenomemon rather than explaining the device (which was cool as well, though a bit distracting).
Anyway, great demonstration!
If you have a moment, would you be so kind as to tell me what you thought about my video?
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