More stroboscopic photography for this Top 200 Photo

photo #37 is:

Galileo postulated that in a vacuum (in other words with no air drag) that any two items dropped should fall at the same rate regardless of their mass. I didn’t hold both of these scissors at exactly the same height, so to compare you have to look at the distance each travels per unit of time. Of course, it is right (and has been tested in space).