Pendulum Waves
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Uploaded by NatSciDemos on Jun 9, 2010
Fifteen uncoupled simple pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, and (seemingly) random motion.
For more details see http://sciencedemonstrations.fas.harvard.edu/icb/icb.do?keyword=k16940&pa...
The period of one complete cycle of the dance is 60 seconds. The length of the longest pendulum has been adjusted so that it executes 51 oscillations in this 60 second period. The length of each successive shorter pendulum is carefully adjusted so that it executes one additional oscillation in this period. Thus, the 15th pendulum (shortest) undergoes 65 oscillations.
Our apparatus was built from a design published by Richard Berg [Am J Phys 59(2), 186-187 (1991)] at the University of Maryland. The particular apparatus shown here was built by our own Nils Sorensen.
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Video courtesy of Harvard Natural Sciences Lecture Demonstrations, © 2010 President and Fellows of Harvard College
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Uploader Comments (NatSciDemos)
Top Comments
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Hey wait, this isn't DnB at all....
1 month ago 48
Video Responses
All Comments (1,401)
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@4uMirabilis its lmao. with an L.
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I was looking for the music imao xD
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where can i buy it ?
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but i was looking for
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Beautifool
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maybe that could explain that everything should return to its original form
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Takie wahadlo mozna zrobic samemu.Musze tylko skombinowac stalowe kule o takiej samej wadze.
Moj mlodsze kuzyn ma urodziny za dwa miesiace.Chyba ucieszylby go taki prezent.
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TEN , KTO WPADŁ NA POMYSŁ ZROBIENIA TEGO URZĄDZENIA, JEST GENIALNY .
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Ciekawe gdzie takie coś można kupić.
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This needs to be filmed in 3D!
3 days ago 2
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No-one's mentioned Allen. Great performance, Allen.
JackAndTheSparrow 3 weeks ago 19
@JackAndTheSparrow Allen says thanks.
NatSciDemos 3 weeks ago 10