I learned about three inventions and one inventor this week. The inventions are the lightning rod, the glass harmonica, and the swivel chair. The inventor’s name is Benjamin Franklin. First, I learned about the lightning rod. Lightning rods are metal spikes placed on buildings. The lightning rod became the leader of the ruling of terror (1793-1794) during the French Revolution. Second, I learned about Benjamin Franklin. Franklin was born in Boston in 1706 and he loved to learn. Franklin invented many inventions such as the Franklin stove, lightning rod, and the glass harmonica, and he signed the Declaration of Independence. Third, I learned about the glass harmonica. Franklin’s instrument produced a sweet sound and it sat to the side and spun using a foot pedal. A popular movie theme used the glass harmonica in 1982. Last, I learned about the swivel chair. Swivel chairs rotate on an axis in circles. They are standard modern office furniture.