der Mouse wrote:
I'm reminded of reading of someone doing work that
involved some
extreme heat sources - testing heat-shielding materials, I think it was
- and there was, out in the middle of a desert somewhere, an
underground torch whose flame emerged from a hole in the ground.
Something like magnesium dust in liquid oxygen, pumped (at well over
its flame propagation speed!) through the nozzle...I forget details.
Aren't there many reports of people able to see the bones in their hands
as clear as day with their eyes closed when within a certain distance of
an atomic bomb flash?
Peace... Sridhar