Watch what happens when a big neodymium magnet collides with 1,000 small ones by Mark Frauenfelder from on 2019-09-24 15:43 (#4R2WW) The Action Lab Man conducts a groundbreaking experiment to find out what happens when a large neodymium magnet meets a cube made of 1,000 small neodymium magnets.<em>Image: Action Lab/YouTube</em>