|
|
Flixxy.com
New
Popular
|
Amateur inventor Tao, 34, made a fully functional submarine, which has a periscope, depth control tanks, electric motors, manometer, and two propellers, from old oil barrels and tools which he bought at a second-hand market.
He took 2 years to invent and test the submarine which costs 30,000 yuan (US$4,385) to build.
.
