The Gyroscope (1883)

The gyroscope, invented in 1883, is a device that uses the principles of angular momentum to maintain its orientation. When it spins, it resists changes to its axis due to the physical principle of conservation of angular momentum. This stability makes gyroscopes essential in navigation systems, such as those in airplanes, spacecraft, and smartphones, helping to determine direction and orientation. Essentially, they help keep balance and provide reliable information about position, making them crucial in various technologies that require precise movement and stability.