How deep can a sun ray's go under the sea?
367356
Depends on the water.  In water near the beach or a river mouth, visibility may only be a few feet.  Out in the open ocean, in areas of low productivity, light may be visible to the naked eye for hundreds of feet underwater, though probably no more than ~400-600 feet at best.
598505
The Pacific Ocean\naverage depth -- 12,925 feet, or almost 2 1/2 miles. The Pacific also has the largest known maximum depth, in the famous Mariana Trench; this maximum depth is 35,840 feet, or a little over 6 3/4 miles. (That's\ndeep!)
132637
That depends entirely on the submarine. A properly constructed submarine can go as deep as it likes. Even manned submarines have been to the deepest parts of the ocean. Unmanned vessels go down into the deepest ocean on a monthly basis.\n\nOTOH a submarine designed for shallow water use can often only go to 50 metres or so before its starts to leak, and it would propbably implode at 100m.
517312
300 meters (or 1000 feet) is about as far as a human being can go without the aid of a vessel. Dive depth records are a little over 300 m.\n\nThe Eiffel Tower is 300 meters tall, which is not very far at all considering how deep the ocean goes. The ruins of the Titanic, for example, are at a depth of 3,800 meters (which is about 2.5 miles). The pressure at that depth is over three tons per square inch - enough to crush you in an instant!
1094383
Under what conditions?\n\nI recall seeing an article about a hotel in the Florida Keys that has made a series of underwater "bungaloes" that guests need to SCUBA dive down to, and out of.  Looks like it would be interesting.  And there are deep-sea researchers that live at depth for some time.\n\nBut either one requires a great deal of support at this time, since none of them could be considered self-sufficient.  Perhaps in the future?
27693
The deepest point is 560 feet (170 meters).  By the way, you're in WAY the wrong catagory.
812724
Try it and let us know.  Is there an ocean deep enough for you to SCUBA dive, ICHI?
330123
i believe i heard somewhere that they can dive as deep as 1700 feet.
140528
Not big enough, when compared to the ocean :(
503367
Starfish live on the bottom, in shallow and deep water.\n\nGiant tube worms have been found at great depths on the bottom.  Also crabs.\n\nSome jellyfish also live very deep where there is no light.
98681
No we don't have the ability now, not only is the temperature too great, there is way too much pressure for us to overcome. It would crush anything significant before we got to far. \n\nThe farthest down that we have been is only a few thousand km, and that with a tiny drill.\n\nThe deepest holes in the crust are natural. Volcanoes bring up material from tens of km depth. The crust thickness averages about 18 miles (30 kilometers) under the continents, but is only about 3 miles (5 kilometers) under the oceans. It is light and brittle and can break. \n\nHere is a great article that explains a lot:\nhttp://www.livescience.com/technology/050407_earth_drill.html\n\nThe reason we explore space more, is because not only is it easier to accomplish, but it is also far safer and less costly. I agree though that exploring below the Earth can be quite rewarding, but we simply can't do it as of now.
508406
rekn may be right, but from what information we have, including satellite surveys, the deepest knows ocean is the pacific ocean with an average depth of 4270 m (14000 ft). the deepest point on the pacific is the mariana trench at 10 911 metres (35,797 ft) below sea level, it is also the deepest know point on the surface of earth
434745
due to earthquakes formed under sea...
584806
we have them now.  submarines run on nuke power with an onboard reactor.  there are plenty of solar powered devices.  calculators come to mind.
1054724
About 4,800 feet above sea level.
302471
Not if the water is a couple of feet above your chest.
26229
The Mariana Trench. It is the deepest known submarine trench, and the deepest location in the Earth's crust itself. Maximum depth 10,911 meters or 35,798 feet below sea level -- just 6,366.4 km from the centre of the Earth.