20,000 Kegs Under the Sea Facts
- All the major navies around the world included submarines in their fleet by the time WWI began.
- The Nautilus was first nuclear powered submarine, launched in September 1954.
- The Nautilus' use of nuclear power helped it to stay submerged for longer than the old submarines of WWII.
- Because of its incredible range, The Nautilus was the first submarine to ever travel beneath the arctic ice and reach the North Pole.
- 12,000 cars weigh as much as one U.S. Navy Submarine used today – that’s 18,750 tons!
- Before the Navy improved the air quality within a submerged submarine, carbon dioxide would often accumulate at a rate of one cubic foot per crew member per hour.
- In order to submerge, a submarine must actually take on water to become denser than the water surrounding it.