Busting DaVinci's Balls - Testing Leonardo's Ball Bearing Design

This video explores Leonardo DaVinci's ball bearing design through practical recreation and testing. Learn about the historical engineering concepts as the host builds DaVinci's ball bearing system from scratch and conducts experiments to determine its effectiveness compared to modern designs. The 20-minute demonstration from How To Make Everything includes detailed fabrication processes, historical context, and performance analysis to determine whether the Renaissance inventor's approach to reducing friction was truly revolutionary. Follow along with the hands-on experimentation that reveals whether DaVinci's engineering principles stand the test of time when subjected to modern testing methods.