In the early 20th century, Elmer Sperry developed the gyrocompass , which points to true north rather than magnetic north. This allowed metal warships and torpedoes to navigate with extreme precision.
However, the "modern" gyroscope was truly born in the early 19th century: gyroscope
These videos explore how gyroscopes work, their critical role in historical missions like Apollo 8, and their modern-day applications in our pockets: The hidden story of your phone's gyroscope YouTube · CNET In the early 20th century, Elmer Sperry developed