Q: If you could drill a tunnel through the whole planet and then jumped down this tunnel...

ask a mathematician dot com ^ | 4-2014 (orig 2012) | physicist

[loungitude]

the ability to stop the Earth from rotating for only 42 minutes. The rest (as an infuriating old math professor of mine used to say) is merely engineering.

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You don’t need to stop the earth from rotating if you drill along the axis of rotation. That IS engineering.

[BipolarBob]

Cosine, it’s worth pointing out, is sinusoidal. It can't be said often enough, if you ask me.

It would certainly open up my sinuses.

[Gamecock]

So much bad science in this post.

All on needs to do is go to the opening at the North Pole and jump in. The biggest danger would come from venturing too close to the central sun.

[Billthedrill]

Hah! I rest my case.

Well, you'd also have to hold your breath for 42 minutes, I suppose. Or jump with a scuba tank rated to 100 zillion atmospheres. Details.

[IronJack]

If you are in a free falling elevator would jumping up at the very end, just before impact, save your life?

Not unless you can jump at about 128 miles an hour straight upward.

By jumping, you're reducing your velocity relative to the elevator, but relative to the shaft (and the floor you're falling toward) only minimally.

[Hardastarboard]

spherically symmetric things, which includes things like the Earth, have a cute property

Which of course begs the question - "Would Laz hit it?"

[A Formerly Proud Canadian]

Quote: Q: If you could drill a tunnel through the whole planet and then jumped down this tunnel...

You mean like this?

[Hoodat]

Not unless you can jump at about 128 miles an hour straight upward.

Sounds like I have some work to do. Time to hit the jump rope. Just in case.

[Hoodat]

I was waiting for that. Can we strap a video camera onto one of those folks?

[Fightin Whitey]

a tube...(made of unobtainium or something)

What I keep all my bitcoin in. (Mum's the word.)

[Bulwyf]

Sounds like sound science to me, observable, reportable, but it is missing one ingredient.. oh ya, repeatable. It needs to be repeatable to be science, can you revise your theory a bit?

Perhaps be more inclusive of other fine individuals?

[Bulwyf]

Of course it would, what are you... simple? /s

[SnuffaBolshevik]

"Then you would lose the momentum and fall back, with slightly less energy until you passed the center going the other way, then you would oscillate back and forth before eventually coming to a stop at the equilibrium point -- the center."

That poses another interesting question.

When you finally came to a stop at the center of the Earth pendulumically, (or artificially somehow, if you have somewhere to be that night), what would it feel like?

Would you simply be weightless?

[Hoodat]

Unobtanium? It would be much cheaper to build a jump suit out of Upsidasium.

[zeugma]

Have you ever seen XKCD's What If? page?

[Bulwyf]

“Cosines include an angle that’s a-cutie.”

Instead of going off on a Tangent, perhaps you could stay focused.

[Billthedrill]

A and B might be able to imagine such a thing, but C can’t.

[Calvin Locke]

... sinusoidal. I wonder if seeing a psychiatrist ...

I would have gone with an otolaryngologist first.

Just make sure any prescription is "Sined, Seeled, Delivered".

[Arrowhead1952]

You’d never survive!! The center of the earth is over a million degrees F. < /algore>

[A Formerly Proud Canadian]

I was surprised it had not yet been posted! Since politicians crave the media spotlight and are rarely elected for their intelligence, perhaps a pol might be convinve to wear a camera while jumping in.