I believe that’s a characteristic of the gelatin itself.
As the bubbles contract, the pressures increase. The ignition is compression ignition of gasses within the bubble (sort of like a diesel engine uses compression to ignite the fuel).
I’ve seen this in several Youtube videos.
Adamon February 22, 2015 at 8:49 am
It is actually sonoluminescence… a snippet from wiki:
“single bubble trapped in an acoustic standing wave emits a pulse of light with each compression of the bubble within the standing wave”
Smarter everyday does a bit on slow motion bullets underwater. He speculates it could be happening underwater as well, but possibly lighting effect from the shockwave.
I believe that’s a characteristic of the gelatin itself.
As the bubbles contract, the pressures increase. The ignition is compression ignition of gasses within the bubble (sort of like a diesel engine uses compression to ignite the fuel).
I’ve seen this in several Youtube videos.
It is actually sonoluminescence… a snippet from wiki:
“single bubble trapped in an acoustic standing wave emits a pulse of light with each compression of the bubble within the standing wave”
http://en.wikipedia.org/wiki/Sonoluminescence
Smarter everyday does a bit on slow motion bullets underwater. He speculates it could be happening underwater as well, but possibly lighting effect from the shockwave.