Jumping into a earthcenter tunnel

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Discussion Overview

The discussion explores the hypothetical scenario of jumping into a tunnel that goes straight through the Earth, examining the physical implications of such an event, including gravitational effects, motion through the tunnel, and potential outcomes for a person in this situation. The scope includes conceptual reasoning and speculative physics.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests that gravity increases as one approaches the core due to the Earth's density, but decreases to zero at the center, implying a complex gravitational behavior throughout the tunnel.
  • Another participant proposes that a person would move up and down past the core until air friction causes them to settle at the center, indicating a lack of destructive forces acting on the body.
  • A different viewpoint posits that if friction is negated and the Earth is assumed to be a perfect sphere, a person would exit the tunnel on the opposite side without issue, highlighting the idealized nature of the scenario.

Areas of Agreement / Disagreement

Participants present multiple competing views regarding the effects of gravity and motion within the tunnel, and there is no consensus on the outcomes of such a jump.

Contextual Notes

Assumptions about the Earth's structure, the effects of air friction, and the idealization of the tunnel as a perfect sphere are not fully resolved, leaving open questions about the physical realities of the scenario.

schiz0ai
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What if you would be able to jump into a hole in the ground that went straight trough the middle of the earth.
And what IF
The tunnel stays intact,
You don't fry to death,
You don't suffocate,
You don't hit the walls,
etc

Would you yoyo? Would you be compressed badly? Would you be torn apart?
im curious :biggrin:
 
Last edited by a moderator:
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The strength of gravity increases as you approach the core - it's denser than the mantle and crust right? However there is a stage where the gravity will start decreasing to zero at the center. You can actually work it out using the structure of the interior of the Earth as a guide:
http://www.madsci.org/posts/archives/nov99/943288749.Es.r.html
... some notes.

Humans are quite small on the scale of the Earth so I don't expect the difference in field between your head and your feet to be strong enough to rip you apart.

See also: http://www.wired.com/science/discoveries/multimedia/2008/08/gallery_kola_borehole/
 
Last edited by a moderator:
You would simply move up and down past the core until friction from the air in the tunnel caused you to settle at the center of the Earth. No tearing apart or anything like that.
 
Thanks for the replies, i really appreciate it.
 
Negating friction, and assuming Earth was a perfect sphere, you would gently pop right out the hole on the other side. Just be sure to get a foothold before you started back down!
 

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