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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
Steve Dufourny: "I have studied several papers about the renormalization of conformal..." in 16th Marcel Grossmann...
Steve Dufourny: "Yang Mills squared and quadrupoles, For this quantum gravitation..." in 16th Marcel Grossmann...
Steve Dufourny: "One of the important solution that I propose for the UN is ecological and..." in Global Collaboration
Amrit Ladhani : "My preprint "The Beginning to the End of the Universe and Eternal..." in Alternative Models of...
Steve Dufourny: "It could be very relevant if FQXi make a kind of essay contest for this..." in Global Collaboration
Steve Dufourny: "I read my posts from the past on FQXi, my english which is not of course..." in Alternative Models of...
Ronnie Wassler: "DNA is the origin of the universe. We have 3 distinct brains, Left..." in Alternative Models of...
Michael Wade: "history dissertation help" in Causal Discovery in the...
RECENT ARTICLES
click titles to read articles
Quanthoven's Fifth
A quantum computer composes chart-topping music, programmed by physicists striving to understand consciousness.
The Math of Consciousness: Q&A with Kobi Kremnitzer
A meditating mathematician is developing a theory of conscious experience to help understand the boundary between the quantum and classical world.
Can We Feel What It’s Like to Be Quantum?
Underground experiments in the heart of the Italian mountains are testing the links between consciousness and collapse theories of quantum physics.
The Thermodynamic Limits of Intelligence: Q&A with David Wolpert
Calculating the energy needed to acquire and compute information could help explain the (in)efficiency of human brains and guide the search for extra-terrestrial intelligence.
Gambling Against the Second Law
Using precision thermometry to make mini heat engines, that might, momentarily, bust through the thermodynamic limit.
FQXi FORUM
August 11, 2022
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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