Did you know, In 1485, a famous painter (Leonardo Da Vinci) drew pictures of flying machines. Did you know bicycles have been around for about 200 years? Blaise Pascal introduced the first horse-drawn bus in Paris. Steam-powered cars were the first. These used a fuel that heated water in a boiler. This super-hot water would turn to steam. The steam would expand and push the pistons. These would then turn a crankshaft, which powered the car. The first working submarine was actually a leather-covered row boat. An inventor by the name of, Cornelis Drebbel constructed this odd underwater vessel in 1620. It managed to reach depths of 4.5 meters (15 feet).