As advanced atom smashers like the Large Hadron Collider come online, older ones are sometimes abandoned or, better, used for unexpected science experiments. Examples range from recording high-speed X-rays of the biological "motor" that flaps a fly's wings to finding an easter egg in a Degas painting. In the video above, Science Hack Day "global instigator" Ariel Waldman reveals how researchers hack particle accelerators for new uses.