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Parachute use to prevent death, trauma when jumping from aircraft (2018) [pdf]

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Re: Parachute use to prevent death, trauma when jumping from aircraft (2018) [pdf]

#31
I came to leave a snarky joke comment about "in mice?", and then I remembered that mice don't actually need parachutes because their terminal velocity is roughly the same as a human using a parachute [1]. If someone actually ran the study with mice, they'd find that parachutes aren't necessary!

1: https://johnmjennings.com/can-a-mouse-survive-a-fall-from-a-...

Re: Parachute use to prevent death, trauma when jumping from aircraft (2018) [pdf]

#32
post #2

There’s no evidence parachutes work.

Hey, I wear a parachute to work every day and it's kept me alive this far! Granted, I work in a ground-floor office, but you can't prove that the parachute isn't what saved me.

Re: Parachute use to prevent death, trauma when jumping from aircraft (2018) [pdf]

#33
post #12

What point is this article trying to make?

They state the point at the end, and it's serious point: if you were inclined to use "science" to argue against a certain intervention that some group believes in, you could do a randomized trial of that intervention, but manipulate the conditions so that the intervention is unlikely to help. The study would look right and sound right to some people. It would use all the best practices. And yet it would be a bullshit…

> manipulate the conditions so that the intervention is unlikely to help

> [The study] would use all the best practices

You've go some major contradiction here, since when is such manipulation "the best practice"?

Re: Parachute use to prevent death, trauma when jumping from aircraft (2018) [pdf]

#34

I came to leave a snarky joke comment about "in mice?", and then I remembered that mice don't actually need parachutes because their terminal velocity is roughly the same as a human using a parachute [1]. If someone actually ran the study with mice, they'd find that parachutes aren't necessary! 1: https://johnmjennings.com/can-a-mouse-survive-a-fall-from-a-...

That introduction Haldane quote:

> You can drop a mouse down a thousand-yard mine shaft; and, on arriving at the bottom, it gets a slight shock and walks away, provided that the ground is fairly soft. A rat is killed, a man is broken, a horse splashes.

"A horse splashes". That's some mental imagery right there.

Re: Parachute use to prevent death, trauma when jumping from aircraft (2018) [pdf]

#35
post #12

What point is this article trying to make?

Death panels are hard work and if you haven't noticed you're on one then you're shirking.

(Less snarkily, we're all making resource allocation decisions constantly and on the margin those are life or death decisions).

IMHO, on the margins you're allowed to use common sense. Also: your grandma / your grandpa, your resources applies.

Re: Parachute use to prevent death, trauma when jumping from aircraft (2018) [pdf]

#37
Putting common sense aside. And pretend the height of jump thing is some super abstract and nuanced thing you didn’t spot.

Does this result simply mean you just can’t reject the null hypothesis (parachute makes no difference)? Rather than a proof of it?

Re: Parachute use to prevent death, trauma when jumping from aircraft (2018) [pdf]

#38
post #9

They solved aircraft safety back in the 50s, but big parachute is keeping the research suppressed so they can sell more parachutes.

I always wear a parachute during paragliding :)

As a paraplegic paramedic studying the paranormal in parallel

Re: Parachute use to prevent death, trauma when jumping from aircraft (2018) [pdf]

#39

I came to leave a snarky joke comment about "in mice?", and then I remembered that mice don't actually need parachutes because their terminal velocity is roughly the same as a human using a parachute [1]. If someone actually ran the study with mice, they'd find that parachutes aren't necessary! 1: https://johnmjennings.com/can-a-mouse-survive-a-fall-from-a-...

But what's the terminal velocity of a parachute backpack strapped to a mouse?

Re: Parachute use to prevent death, trauma when jumping from aircraft (2018) [pdf]

#40
post #12

What point is this article trying to make?

Sort of this: we asked 100 people sitting on a plane to jump out, with or without a parachute. All those who accepted the challenge were sitting on a fake plane standing still at 0.6 metres from the ground. We saw that the use of the parachute made no difference.
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