has anyone heard of the hollow earth theory???

Question

i think logically this has to be wrong but i came across some interesting information related to it....
it pretty much states that centrifugal force exerted in the earliest of earth's life spun all the heaviest elements outwards, much like what would happen if you took a two-litre bottle and spun it. Most of the water would flow towards the outer edge as opposed to settling in the middle. This seems plausible. The other 'problem' is the size of the earth (197 million sq miles) and the estimated weight (6 sextillion tons) not matching. The thought is that if the earth was a solid mass it would weigh much more, and this has been documented to be the case on other planets in our solar system, so they claim. Then there are the pics of a "hole" in the poles. I can't discern whether or not the pics show a hole and if they are authentic if so.
http://freespace.virgin.net/seant.ellis/images/essa-3-19670106.jpg
http://www.geocities.com/Area51/Rampart/9886/earth2.jpg
what do you think???

how strong is it's gravity though, i think we would all agree that an ordinary refigerator magnet is strong enough to lift (therefore exert more force/pull than the gravity of the earth has to retain/hold) a piece of metal or another magnet. Or am i wrong in some way?

Answer 1

It was Edgar Rice Burroughs(author of Tarzan) who wrote novels involving a hollow earth with openings at the poles. Seismology has since debunked that theory.

Answer 2

Earth mass is equal to 5.9736×10^24 kg.
Earth volume is equal to 1.083 207 3×10^12 km^3
Earth density is equal to 5515 kg/m^3

d = m/v, where:
d is density
m is mass
v is volume

d = m/v
d = 5.973×10^24/1.083×10^12
d = 5.515x10^12 kg/km^3
d = 5.515x10^3 kg/m^3
d = 5515 kg/m^3 ***THE ANSWER***

So, the density, volume, and mass all fit together. If the earth was hollow, the planet's "shell" would be hugely dense. Gravity would also be affected, with so much mass much closer to the surface. These conspiracy theories make me want to throw somethng, being the proud science nerd that I am. As for the photos, they were probably edited or modified. If not, they're just an absence of clouds. And besides, if they were really holes, why couldn't anyone see a similar hole at the south pole (either by going to the poles or staring down the first picture's "hole")? And besides, people visited the north and south poles and didn't see any gaping holes there. And besides, if there were giant holes, wouldn't the oceans flow into them? And besides, if there were giant holes, wouldn't they be a big enough curiosity so that there would be more than two fuzzy pictures? And besides...


Pretty soon, these samy conspiracy theorists will be saying other stupid things, like "the moon landings were faked." Oh - wait a minute, they're already saying that!

Answer 3

I as quickly as study a sci-fi novel based on that very comparable theory. The humorous element relating to the e book develop into that this a techniques fetched theory develop into made to look very possible. utilising some very scientific explainations the author confirmed how a society ought to honestly thrive utilising geothermal means and extremely stepped forward chemistry to have some tremendously remarkable creature comforts. It additionally gave a breakdown of ways those human beings ended up 'down under'. i do no longer submit to in suggestions the call of the author or call (i comprehend it is not Jules Vernes "journey to the middle of the Earth) as that's been a decade and a superb form of books in the past. perchance a 'hollow Earth' believer knows which it truly is. super e book nonetheless.

Answer 4

If you know who Jules Verne is you have heard of Hollow Earth theory, even if you did not know that was what he was writing about. It was very popular in the 1800's. I cannot remember when it was "debunked." But, we owe the theorists a debt of gratitude for the science fiction it gave rise to.

Answer 5

If the earth were hollow, it would need to be made of some material that's heavier than any known element to account for the strength of its gravity.