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Puzzle For All Smart Physicists


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#1 hazelm

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Posted 21 January 2020 - 03:05 PM

And everybody else.

 

A man fell out of a twenty-story building and lived to tell about it.  How did he do that?"

 

hazel m


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#2 VictorMedvil

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Posted 21 January 2020 - 04:16 PM

There also was a guy that jump off the 109th story of the world trade center during the Terrorist attack on it and survived. I would say that probably the legs took most of the force and acted like a pillow as their legs broke or shattered it caused most of the force to be directed away from their body.


Edited by VictorMedvil, 21 January 2020 - 04:19 PM.


#3 hazelm

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Posted 21 January 2020 - 04:24 PM

There also was a guy that jump off the 109th story of the world trade center during the Terrorist attack on it and survived. I would say that probably the legs took most of the force and acted like a pillow as their legs broke or shattered it caused most of the force to be directed away from their body.

Nice try, Victor, but nope!



#4 VictorMedvil

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Posted 21 January 2020 - 04:26 PM

Nice try, Victor, but nope!

Well, I dunno why don't you just tell us.



#5 Mutex

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Posted 21 January 2020 - 04:59 PM

Because he did not sustain injuries bad enough to kill him, or to stop him from talking. Something caused him to be buffered such that he did not undergo a fatal decelleration. 



#6 GAHD

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Posted 21 January 2020 - 10:10 PM

There's a few cases like that. From my thoughts on it they must have landed on a really hard surface that had enough variance in it's speed of sound to rebound the shock in a destructive pattern. That's to say the shock was really fast instead of being spread out over more than a quarter second or so.

Humans can stand instantaneous deceleration(or acceleration) of really high levels with "minor injury" but any significantly prolonged forces overcome the natural springiness of tissue and tear it. IIRC the guy who survived parachute failure landed on asphalt, on his back. That right there would minimize the thickness of the body and reduce the travel time of the shockwave(s) though the flesh, and depending on the points of contact and their offset would probably minimize constructive interference reinforcing the wave('s/s') amplitude(s). The variable SOS between mixed aggregate and binders on that kind of surface would further muddy the reflections.

Basically, as long as there's room to stretch enough, humans tend to "bounce" rather than "splat" from tissue elasticity. Still probably got some aneurysms and whatnot that would need to be watched.



#7 OceanBreeze

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Posted 22 January 2020 - 02:02 AM

And everybody else.

 

A man fell out of a twenty-story building and lived to tell about it.  How did he do that?"

 

hazel m

 

 

HaHa this is funny.

 

This only says he fell out of a 20 story building; it doesn't say what floor he was on


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#8 Mutex

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Posted 22 January 2020 - 02:14 AM

HaHa this is funny.

 

This only says he fell out of a 20 story building; it doesn't say what floor he was on

 

Ding Ding, we've found our smart physicist... Sure falling out of a ground floor window makes a lot of sense.. 


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#9 Dubbelosix

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Posted 22 January 2020 - 03:27 AM

And everybody else.

A man fell out of a twenty-story building and lived to tell about it. How did he do that?"

hazel m

There have been many instances of people falling from great heights and surviving. One current theory is that a gust of wind can prevent a person from being mortally wounded. Some parachutes for instance have not activated properly and a few rare ones have survived.

Edited by Dubbelosix, 22 January 2020 - 03:27 AM.


#10 hazelm

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Posted 22 January 2020 - 06:28 AM

HaHa this is funny.

 

This only says he fell out of a 20 story building; it doesn't say what floor he was on

Good thinking, Ocean Breeze.  :spin:  Simplicity is genius.   :wave2: