Comments by "Dr Gamma D" (@DrDeuteron) on "15,000MPH Colliding Explosions in Super Slow Motion - The Slow Mo guys" video.

  1.  @MISHBASH neutral density, I.e grey.
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  2. That has to be total internal reflection with the radiant copper not showing up in the gel, but then the soot trail is visible…..or, the sooot is so thick blocks the light. That makes more sense, the second one.
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  3.  @bigmartin343 my avatar is an electron camera for seeing quarks.
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