What has kept human kind from putting hotels on the ocean floor in all parts of the world?
Answer:
Money would be the correct guess. The huge amount of pressure at even a modest depth like 100 feet is a large engineering challenge. You need a very strong structure to withstand such pressure, and that means top-of-the-line materials and build quality. Hence it costs a lot.
Lack of demand. Not enough people want to hang out under the sea to justify the cost of building such a thing.
It would be extremely difficult to build and it really wouldn't be necessary.
Atmospheric pressure makes it very hard to keep it secure
I am gonna have to go with extreme pressure. The deeper you guy the more psi (pressure per square inch).
They do exist:
http://www.jul.com/
http://www.uhotw.com/hoteldetails.aspx?c...
http://www.poseidonresorts.com/poseidon_...
http://www.designbuild-network.com/proje...
http://www.popsci.com/popsci/technology/...
Reminds me of the Green Onion. Glub Glub.
http://www.imdb.com/title/tt0064417/...
the space is empty whereas the sea has alot of mass.
more the mass = lot of factors to deal with while building something
Try asking a cab driver to take you to one
The average ocean depth is 3700 meters. The largest hollow structure that has been designed to reach this depth (and a little beyond) is Alvin's titanium pressure hull. It's a 2 meter inside diameter sphere which can barely contain 3 people and 72 hrs life support. Once you get there, you have a view of 100 meters or less from a viewport smaller than your head. Nothing even as large as a small military sub has ever been built to reach seafloor depths. Space is a much less hostile environment, with infinite views and zero-gee as attractants.
Added later -Luxury subs, which access the shallow (less than 1000 ft depth) ocean where there is some light to see by, do exist. They are VERY expensive and, despite the article title, don't get to seafloor depth - just the continental shelves.
It's too wet for humans, and the sharks and whales always skip out without paying their bills.
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