I learned about four inventions this week. The four inventions are the parachute, selective breeding, the electrolysis, and the threshing machine. First, I learned about the parachute. Parachutes slow down your descent to the ground and have saved hundreds of lives. They made North Pole weather monitoring possible. Second, I learned about selective breeding. Selective breeding produces desirable traits and the breeder must determine what trait to highlight. It made the eating habits of people change. Third, I learned about electrolysis. Electrolysis breaks compounds into elements. It revealed a lot of the periodic table and it’s used in many manufacturing processes. Last, I learned about the threshing machine. It reduced the labor required to harvest wheat grains. The threshing machine directly contributed to the British agricultural revolution.