Hidden boxthe under the surface of earth is missing

  • Context: High School 
  • Thread starter Thread starter shiva999
  • Start date Start date
  • Tags Tags
    Earth Surface
Click For Summary

Discussion Overview

The discussion revolves around the concept of whether a box hidden beneath the Earth's surface would be lost over time due to geological processes, particularly plate tectonics. Participants explore the implications of tectonic plate movement on buried objects over extended periods, considering both theoretical and practical aspects.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the validity of the claim that a buried box would be lost over time, suggesting the need for evidence before discussing the reasons behind it.
  • Another participant proposes that plate tectonics could account for the movement of the box, noting that tectonic plates can move up to 10 cm/year, potentially leading to a displacement of 50 meters over 500 years.
  • Some participants mention that surface objects, including trees and rocks, would also move with the tectonic plates, implying that a box buried between them would maintain its relative position despite the movement.
  • There is a suggestion that for a box to be lost due to tectonic movement, it would need to be buried very deeply, possibly in magma, to be separated from the surface movements.

Areas of Agreement / Disagreement

Participants express differing views on the extent to which plate tectonics would affect a buried box. While some argue that the movement is significant enough to potentially lose the box, others contend that surface objects would move in unison, maintaining relative positions.

Contextual Notes

Participants reference various sources to support their claims, but there is no consensus on the initial assertion about the box being lost over time, nor on the implications of tectonic movement on buried objects.

shiva999
Messages
12
Reaction score
0
i read that if you hide a box under the surface of Earth by covering it,then if try to recover it after some hundreds of years you won't find it as box adjusts to other place is it true? explain
 
Physics news on Phys.org
I suspect this is talking about plate techtonics. And I was going to say that plates simply do not move fast enough. But then I found, at http://hypertextbook.com/facts/ZhenHuang.shtml, that plates can move as fast as 10 cm/year which, over, say, 500 years, would amount to 5000 cm= 50 m. Now, that certainly is enough that you could "lose" an object carried along with the plate.
 
At the same rate as your finger nails grow I have heard.
 
Where did you read that? We need to establish if it might be true before establishing why it might be true.
 
HallsofIvy said:
I suspect this is talking about plate techtonics. And I was going to say that plates simply do not move fast enough. But then I found, at http://hypertextbook.com/facts/ZhenHuang.shtml, that plates can move as fast as 10 cm/year which, over, say, 500 years, would amount to 5000 cm= 50 m. Now, that certainly is enough that you could "lose" an object carried along with the plate.

You would have to bury the box really deep, for the techtonic plate to move without the box. In fact the box would then float away with the magma.
 


HallsofIvy said:
I suspect this is talking about plate techtonics. And I was going to say that plates simply do not move fast enough. But then I found, at http://hypertextbook.com/facts/ZhenHuang.shtml, that plates can move as fast as 10 cm/year which, over, say, 500 years, would amount to 5000 cm= 50 m. Now, that certainly is enough that you could "lose" an object carried along with the plate.

The problem is that surface objects such as trees, rocks, houses, etc. will all be moving at the same rate and in the same direction so a box buried half way between a tree and a rock will still be half way between the tree and the rock, even if all 3 have moved 50 meters.
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
5K
  • · Replies 15 ·
Replies
15
Views
2K
  • · Replies 20 ·
Replies
20
Views
4K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 190 ·
7
Replies
190
Views
17K
  • · Replies 33 ·
2
Replies
33
Views
5K
  • · Replies 29 ·
Replies
29
Views
3K
  • · Replies 14 ·
Replies
14
Views
1K
  • · Replies 3 ·
Replies
3
Views
2K