Leonardo noted link between gravity and acceleration centuries before Einstein | Ars Technica
Caltech engineers even re-created his experiment with a modern apparatus.
Caltech engineer Mory Gharib was poring over the digitized notebooks of Leonardo da Vinci one day, looking for sketches of flow visualization to share with his graduate students for inspiration. That’s when he noticed several small sketches of triangles, whose geometry seemed to be determined by grains of sand poured out from a jar. Further…