If energy is directed to this area and it would benefit science to know with existing technology seems this could be verified. Earth diameter is 8000 mi. assume a 4000 mi. hollow leaving 2000 mi. crust. Gravitational equalibrium by volume should be placed between 600 & 700 miles deep on the equator & 400 to 500 mi's on the poles, magma would be be in this section?
2007-06-01 04:22:34 · 4 answers · asked by james h 2 in Science & Mathematics ➔ Earth Sciences & Geology
If you wanted to demonstrate that the earth was hollow, for starters, you would need to explain the following:
1) You would have to find a mechanism to explain the disrtubution of observed seismic wave reflections from large earhquakes. P waves can pass straight through the earth, and it is possible to observe relfections/refractions associated with different boundaries, including the boundary between the inner core and outer core, which would be in your supposed hole.
2) If the Earth was hollow, then it would be gravitationally unstable. What is the mechanism that prevents it from collapsing? We know that the earth is actively deforming and therefore not rigid from the movement of the tectonic plates (which we have been watching with the global position system for the last 20 odd years), so you would need to provide a mechanism by which something non-rigid, and extremely heavy doesn't collapse - imagine trying to make a skyscraper out of treacle and you'll get the point.
3) The earths magnetic field.
4) A mechanism by which you could form a hollow planet.
Incidentally....those clever geophysisists have imaged the interior of the planet using sismic tomography - the equivalent to giving the Earth a CAT scan. And it doesn't have a hole in the middle!
2007-06-01 14:07:25 · answer #1 · answered by Andrew 5 · 0⤊ 0⤋
The existence of the magnetic field is proof enough against hollow earth theory as it requires the planet to have an iron core.
2007-06-01 04:32:05 · answer #2 · answered by -_- 2 · 0⤊ 1⤋
There is too much evidence the other direction to test for a hollow earth.
2007-06-01 04:29:44 · answer #3 · answered by rantan1618 3 · 0⤊ 0⤋
While you are testing to see in the Earth is hollow you could also spend some time checking to see if it is flat as well.
2007-06-01 23:17:58 · answer #4 · answered by U.K.Export 6 · 0⤊ 2⤋