Submarine Facts | A Wonder of Modern Science
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Fun Facts About Submarines
- Submarines are part of the Navy.
- Submarines have been used since the American Civil War.
- The first nuclear-powered submarine was the USS Nautilus.
- Submarines navigate underwater using sonar.
- The submarine uses ballasts to rise and sink.
How fast can a submarine go?
However, U.S. nuclear-powered submarines can go faster than 23 miles per hour, which is 37 kilometers per hour or 20 knots (nautical miles per hour) underwater.
How deep can a submarine go?
A nuclear submarine can dive to a depth of about 300m. This one is larger than the research vessel Atlantis and has a crew of 134. The average depth of the Caribbean Sea is 2,200 meters, or about 1.3 miles. The average depth of the world's oceans is 3,790 meters, or 12,400 feet, or 2 1⁄3 miles.
How long can a submarine stay underwater?
Diesel-electric submarines may remain immersed for up to 48 hours without recharging their batteries, but they should surface to operate a generator. Nuclear-powered submarines in the army may remain submerged for extended periods of time.
Cornelis Drebbel
Submarine / InventorThe first submarine actually constructed was probably a vessel created and tested in the early seventeenth century by Dutch inventor Cornelis Drebbel. Over the next two centuries, various inventors continued to work out design problems.
Do submarines have Internet?
To connect with terrestrial technologies, the nodes communicate with gateway buoys on the water's surface, linking to the above-sea internet via cellular networks or satellites. Still, undersea broadband is a way off, due to the low data rates.
How do submarines get air?
First, oxygen must be pumped into the vessel as the crew uses it up by breathing. Oxygen is typically supplied to the submarine from pressurized tanks. A computerized system monitors oxygen in the air and releases fresh oxygen as its needed by the crew.
Can you survive a tsunami in a submarine?
Some small and strong-hulled titanium submarines could survive stronger impacts and tsunami waves, but larger submarines with thinner hulls could be better adapted to long-term survival in a contaminated world.
How many submarines are in the ocean right now?
Today the Navy operates 68 submarines. The force includes 50 attack submarines (SSNs), 14 ballistic-missile subs (SSBNs) and four cruise-missile subs (SSGNs). All have nuclear powerplants.
