Current Events > Speculatively if you drill a hole trough earth and jump, would u float in the mi

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apolloooo
05/03/21 8:34:51 AM
#1:


Going by mass and gravity alone. Ignore the heat, impossible logistics, and everything else. The deeper you go, the less earth's gravitational pull towards you right? In the middle the pull is almost equal because the mass of earth are all around you essentially creating something similar to 0 G?


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FabIe
05/03/21 8:38:26 AM
#2:


No, you would be crushed to death.

Ignoring that, you'd likely jump in, fall and pass the core. Due to your velocity, you'd shoot up the other end a little way. Then fall back towards the core and shoot up a little less each time until you're just floating in the middle.

But that assumes hollow earth and mole people don't exist.

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Xavier_On_High
05/03/21 8:49:50 AM
#3:


FabIe posted...
No, you would be crushed to death.

Ignoring that, you'd likely jump in, fall and pass the core. Due to your velocity, you'd shoot up the other end a little way. Then fall back towards the core and shoot up a little less each time until you're just floating in the middle.

Why do you say a person would be crushed to death? My understanding is that the second part of your post is what would occur.

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Thompson
05/03/21 8:51:16 AM
#4:


Xavier_On_High posted...
Why do you say a person would be crushed to death?
By atmospheric pressure, I'm guessing.

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Xavier_On_High
05/03/21 8:56:56 AM
#5:


Thompson posted...
By atmospheric pressure, I'm guessing.

I assumed this, but as you got closer to the centre, I believe air pressure would reduce because the pull of gravity would be roughly equal in all directions.

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FabIe
05/03/21 9:00:12 AM
#6:


Maybe you'd be ripped apart then

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SolidShadow3
05/03/21 9:06:26 AM
#7:


assuming I am correct you'd become stuck dead center of the earth (think a magnet getting thrown at another magnet of the same (strong) strength)
You'd get crushed in.... maybe 20 seconds?

Gravity would intensify

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Laserion
05/03/21 9:08:52 AM
#8:


Why would you be crushed? When you get inside a spherical object, the shell of material above you no longer contributes to gravity on you. Also gravity decreases as the sphere of material above you gets smaller.
Rule of r^2 doesn't work inside solids, only for distance outside it. Maximum gravity is at the surface of the earth.

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SolidShadow3
05/03/21 9:12:40 AM
#9:


Laserion posted...
Why would you be crushed? When you get inside a spherical object, the shell of material above you no longer contributes to gravity on you. Also gravity decreases as the sphere of material above you gets smaller.
Rule of r^2 doesn't work inside solids, only for distance outside it. Maximum gravity is at the surface of the earth.
Look, Im no scientist; so feel free to explain this like I'm 5 (please). but.. wouldn't that make a black hole a non issue?

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Tyranthraxus
05/03/21 9:18:45 AM
#10:


SolidShadow3 posted...
Look, Im no scientist; so feel free to explain this like I'm 5 (please). but.. wouldn't that make a black hole a non issue?
Black holes will kill you before you cross their physical boundaries. The gravity is actually so strong it will pull you apart as the gravity affects every molecule in your body with a different intensity depending on how close it is to the center.

https://en.wikipedia.org/wiki/Spaghettification

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uwnim
05/03/21 9:19:41 AM
#11:


A black hole is extremely compressed so that at its surface gravity is absolutely absurd.

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