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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.

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.

Cornelis Drebbel Submarine / Inventor The 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.

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.

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...

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.

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.

SEAmagine Submersibles Used by Coast Guard for Underwater Inspections Two SEAmagine submersibles were delivered to the Azerbaijan Coast Guard earlier this year. The vehicles are being used to perform underwater inspections of the vast quantities of oil platforms and pipelines located in the...

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Time for another trip to Connley

How many Slow Pitch Jigging videos has Mike recorded? Let's watch them all and find out. I think I have seen nearly all of them. As I see new ones, I will try to post them here at Coral Heads.

Slow Pitch Jigging for Snapper? Yep, let's go!

Slow Pitch Jigging is taking off all over the world. Who has yet to try Slow Pitch Jigging?

New to Slow Pitch Jigging? Watch this video!

We need to make some deep underwater videos with a drone while Slow Pitch Jigging!

Have you tried Slow Pitch Jigging? Once you start, you can't stop.

Connley have some new slow pitch jigging rods, go check them out.

Have you chosen a favorite slow pitch jig?

Do you have a favorite scuba diving video?

So many varieties of fish in the sea. What is your favorite? Do you have a cool filleting video?