I was surfing Youtube videos and came across a guy shooting these things with a AK and filming it with a high speed camera. I looked up the drop and found this article. I will not even pretend I have the faintest idea what this guy is talking about but it just looks cool. And the fact that you can take a hammer to the head without incident yet if you bend the tail the whole thing will just explode is just very cool.

https://phys.org/news/2017-05-scientists-year-old-mystery-prince-rupert.html

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Fascinating indeed. Would that S. Chandrasekhar be the same one of the Chandrasekhar limit?

- Peter.

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Most likely the video you saw of a guy shooting these drops was from Smarter Every Day. Here is that video.
https://www.youtube.com/watch?v=xe-f4gokRBs


I really enjoyed the cat dropping vid, but that's just me.

This was explained in nice lay-person's terms on "smarter every day" - here's the youtube:

https://www.youtube.com/watch?v=xe-f4gokRBs

darn - didn't see blt had that already.


Odd thing - smarter every day - 2013, phys.org article - 2017. Hmm.