8. Superfast submarine. Submarines are pretty slow compared to other means of transport. The fastest boat for a long time has been a boat K-222, that could reach 80 kilometers per hour. But in the future, if the project is realized, the submarine could cross the Pacific in 1,5 hours. The project involves the use of special technology, similar to that used on some torpedoes, manufactured in Russia. Scientists say that the boat could reach up to 5800 kilometers per hour.
