1.He painted the annunciation.
2.He wrote codex of bird flight.
3.He design the air screw.
4.He design the mirror polishing machine.
5.He design plams for a fliying machine.
6.He built the bicycle.
7.He built the tank.
8.He built the boat blades.
9.He built the rescue bridge.
10.He built the odometer.
11.He built the hygrometer.
12.He built the clock chiaravalle.
13.He built the helmet.
