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Author Topic: Human tops (headspins)  (Read 717 times)

ta0

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Human tops (headspins)
« on: July 11, 2023, 11:32:20 PM »

I know we discussed once handstand spins (I cannot find the thread), but these head spins are even closer to Human Tops as the speed is amazing (up to about 180 RPM!)

https://www.youtube.com/watch?v=I5IQxJw-noo.

I'm guessing that when they are spinning at good speed with the legs open the spin is enough to get gyroscopic stabilization like a real top. At other times this requires supreme balance.
« Last Edit: July 11, 2023, 11:52:07 PM by ta0 »
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Texture

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Re: Human tops (headspins)
« Reply #1 on: July 12, 2023, 12:21:52 PM »

This shouldn’t be nstr  :P

I don’t know what I was expecting but that was crazy impressive!  :o
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ta0

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Re: Human tops (headspins)
« Reply #2 on: July 17, 2023, 12:20:02 PM »

A different kind of human spinning top. I've never seen this spinning human tower before.







« Last Edit: May 22, 2024, 10:50:02 PM by ta0 »
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ta0

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Re: Human tops (headspins)
« Reply #3 on: May 22, 2024, 10:42:57 PM »

I'll put this under human top, although it could also be under killing machine. Please, do not try this at home!

https://i.ibb.co/5T8SK7r/image.png
« Last Edit: May 23, 2024, 10:57:57 AM by ta0 »
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ta0

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Re: Human tops (headspins)
« Reply #4 on: May 22, 2024, 11:03:11 PM »

I calculated an insane acceleration from the above video.
It takes him 0.25 seconds to turn one revolution at the peak spin (measured from the video I downloaded), or ω = 1/0.25 1/s x 2 π = 25 rad/s
The radius of the spin for the head is about r = 0.5 m (at least).
So, the acceleration is:

a = r ω2 = 0.5 m x (25 1/s)2 = 321 m/s2

what dividing by the acceleration of gravity of 9.8 m/s2 is 32 G !!!

That is letal if it lasts a little bit! He was lucky that he only passed out.
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