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The first submarine was powered by oars. Public Domain Submarines are ships that can operate both under and on top of the water. One of the first submersible vessels was built around 1620 by a Dutchman named Cornelius van Drebbel. We don't ...
http://www.yesmag.ca/how_work/submarine.html
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Most submarines have a distillation apparatus that can take in seawater and produce fresh water. The distillation plant heats the seawater to water vapor, which removes the salts, and then cools the water vapor into a collecting tank of fresh water. ... Introduction to How Submarines Work...
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science.howstuffworks.com/submarine2.htm
science.howstuffworks.com/submarine2.htm
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Submarines are incredible pieces of technology. Not so long ago, a naval force worked entirely above the water; with the addition of the submarine to the standard naval arsenal, the world below the surface became a battleground as well. Su...
http://www.howstuffworks.com/submarine.htm
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Submarines are built to be nearly zero buoyant meaning that the volume of the submarine weights just slightly less than the same volume of water. Tanks spaced strategically in the submarine are filled with water to make the submarine slight...
http://wiki.answers.com/Q/How_do_submarines_work
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The log floats because its density is less than that of water. ... Submarines: How They Work - Archimedes' Principle...
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www.onr.navy.mil/focus/blowballast/sub/work2.htm
www.onr.navy.mil/focus/blowballast/sub/work2.htm
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Submarines: History - How They Work - Introduction ... The submarine's crew must continually work to keep the submarine trim because burning fuel and using supplies affect the sub's distribution. Tanks called trim tanks, one forward (front half of boat) and one aft (back half of boat), help keep trim by allowing water to...
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www.onr.navy.mil/focus/blowballast/sub/work1.htm
www.onr.navy.mil/focus/blowballast/sub/work1.htm
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How Submarines Sink & Swi ... Submarines have an inner and an outer steel shell, called a hull. The area in between the two hulls is called the ballast tank. It can be filled with either air or water. ... Click on "Submerge" in the graphic below to see how submarines sink. Click on "Surface" to see the submarine return to...
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express.howstuffworks.com/express-submarine1.htm
express.howstuffworks.com/express-submarine1.htm
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Even before submarines were thought about, Verne had created the blueprint of this technological marvel. Not only did he describe the machine, but he also explained, in great detail, how it worked. In fact, today's submarines use exactly the same technology as Verne's Nautilus did!
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www.pitara.com/discover/5wh/online.asp?story=158
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The Naked Scientists science forum supports the naked scientists podcast and radio show. Ask and answer science questions on any subject. ... The Naked Scientists Forum | Non Life Sciences | Technology | How do submarines work? How do they sink and re-surface? ... how do submarines sink, stay "sunk" and rise to the surface?
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www.thenakedscientists.com/forum/index.php?topic=9990.0
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