Prince Rupert's Drop
May 2, 2013
https://www.youtube.com/watch?v=xe-f4gokRBs Mystery of Prince Rupert’s Drop at 130,000 fps If you haven’t seen this one yet it is worth the watch. While the whole Rupert’s Drop thing is very cool - their explanation of annealing is one of the best I’ve seen and something every glass artist should understand.
(Source: https://www.youtube.com/)