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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
H.H.J. Luediger: "Even darker.... one can not easily downrate a racehorse to a donkey, but..." in Undecidability,...
Steve Agnew: "Well thank-you, you are very kind. I have come to appreciate the fact that..." in Quantum Dream Time
Samuel Parsons: "O also means a whole new universe in a box can be recreated a miniverse..." in Outside the Box
Samuel Parsons: "Is it 127? It's always comes back here. Just saying also I'm trying to..." in Outside the Box
Zeeya Merali: "INSPYRE, INternational School on modern PhYsics and REsearch, organized by..." in Welcome to INSPYRE 2020 -...
David Sloan: "Dear Alan, For any discussion regarding the essay contest, the contact..." in Undecidability,...
Jonathan Dickau: "Thank you Peter... For the kind words of explanation. It is looking like..." in From Cosmic Lighthouses...
Lawrence Crowell: "Tejinder, I was intrigued by your FQXi essay. Thanks for this reference to..." in Alternative Models of...
RECENT ARTICLES
click titles to read articles
Building Agency in the Biology Lab
Physicists are using optogenetics techniques to make a rudimentary agent, from cellular components, which can convert measurements into actions using light.
Think Quantum to Build Better AI
Investigating how quantum memory storage could aid machine learning and how quantum interactions with the environment may have played a role in evolution.
Outside the Box
A proposed quantum set-up that could predict your game-playing strategy resurrects Newcomb’s classic quiz show paradox.
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Investigating how the quantum measurement process might be related to the emergence of intelligence, agency and free will.
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FQXi FORUM
May 29, 2020
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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