🚀 go-pugleaf

Each year in August, we remember the bombing of Hiroshima and Nagasaki.
 Each time we see stairs with a stain and the host tells us that it was
the shade of a human who was evaporated by the explosion.  Is this
really so?  Can a human body be evaporated?  We know that a cremation
takes well over an hour at the temperature of 1200 degrees Celsius,
after it is finished, still some ashes remain, the body does not just
disappear.  In the case of an atomic bomb, the temperature at the
explosion site is less than 4000 degrees and it decreases proportional
to a square of the distance.  The bomb was exploded at 600 m above the
ground, so the temperature at the stairs was even less than cremation
one.  Explosion radiation lasts less than a minute, so there is no way
a human body could evaporate.

In addition, numerous bodies were found just at the epicentre of the
explosion, all were dead, but no part of their body had "evaporated".
Also, there is no trace of melting at the stairs, which means that the
temperature was not so high.  Last, but not least, evaporated body does
not leave a stain, stain is there, because the body did not evaporate.

How did this legend come to life?  Somebody saw the stain and imagined
a very impressive and horrifying picture of an evaporating human body,
and the rest is history.  I have difficulty with it, first, because it
is just not true; second, because you do not need to invent horror, the
truth about nuclear weapon is horrible enough.

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