Human tops (headspins)

Started by ta0, July 11, 2023, 10:32:20 PM

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ta0

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.

Texture

This shouldn't be nstr  :P

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

ta0

#2
A different kind of human spinning top. I've never seen this spinning human tower before.








ta0

#3
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

ta0

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.