How many marbles can be added to a full glass of water without spilling a drop?
📍Surface tension allows a surprisingly large volume of water to rise above the rim of the glass without flowing over. This physics demonstration also works well with a shot glass and coins, and glassware types that are wider at the top enhance the dramatic effect.
👉🏻 Many thanks to Mark Setteducati for sending me this version of his Eureka Cup.
Watch full video:
https://youtu.be/TuSfUGLasNI