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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
Jahangir kt: "A great website with interesting and unique material what else would you..." in Our Place in the...
Steve Agnew: "There is no difference between a word explanation and a math description...." in Schrödinger’s Zombie:...
Steve Dufourny: "I am going to tell you an important thing about the aethers. I thought that..." in Alternative Models of...
Joe Fisher: "Jason, I post sensible comments. I do not provide audio files. Joe..." in First Things First: The...
Joe Fisher: "Today’s Closer To Truth Facebook page contained this peculiar piece of..." in First Things First: The...
halim sutarmaja: "dewapoker hadir untuk semua pecinta game poker dengan teknologi terbaru dan..." in New Nuclear "Magic...
Jason Wolfe: "Hi Georgina, Steve, What is reality? The humorous answer, almost at the..." in Schrödinger’s Zombie:...
Jason Wolfe: "As for religious fundamentalists, I would rather deal with them, then with..." in More on agency from the...
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click titles to read articles
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Why do we remember the past and not the future? Untangling the connections between cause and effect, choice, and entropy.
Can Time Be Saved From Physics?
Philosophers, physicists and neuroscientists discuss how our sense of time’s flow might arise through our interactions with external stimuli—despite suggestions from Einstein's relativity that our perception of the passage of time is an illusion.
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Objective reality, and the laws of physics themselves, emerge from our observations, according to a new framework that turns what we think of as fundamental on its head.
FQXi FORUM
November 19, 2019
CATEGORY:
Show Me the Physics! Video Contest (2014)
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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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