What are some of the inventions in the 1400's?

CARAVEL

The caravel (also spelled carvel) is a light sailing ship that that was developed by the Portuguese in the late 1400's, and was used for the next 300 years. The Portuguese developed this ship to help them explore the African coast. DA VINCI, LEONARDO

Leonardo da vinci (1452-1519) was an Italian inventor, artist, and scientist. Da Vinci had an interest in engineering and made detailed sketches of the airplane, the helicopter (and other flying machines), the parachute, the submarine, the armored car, the ballista (a giant crossbow), rapid-fire guns, the centrifugal pump (designed to drain wet areas, like marshes), ball bearings, the worm gear (a set of gears in which many teeth make contact at once, reducing the strain on the teeth, allowing more pressure to be put on the mechanism). SCREWDRIVER

The earliest known screwdriver dates from the 15th-century. Slotted screws (which were inserted with screwdrivers) were then used in knight's armor. One is on display at the Metropolitan Museum of Art in New York City, New York. there are more inventions on the following site:http://www.enchantedlearning.com/inventors/1400.shtml