Who how and use of submarine
Thank you for visiting my blog Do you want to know ? Who how and use of submarine ? Let's start We are now on 3rd generation but now also many people don't know how submarine made who made this? Actually we know about submarine after it's completely made. Kursk Submarine Actually submarine is a ship which can drive under water. Submarine can go now many deeply on sea. From many years we are trying to find diamond and also some valuable things from sea . But we were not able to go very deeply that was really a problem.Then we were trying to make something which can go on sea very deeply . Then Cornelis Drebbel (Holland) made first submarine on 1620 Cornelis Drebbel It was first submarine in the world.This submarine was made by wood and fully covered by leather. It was able to go 3 to 4 meter deep...