The Great Pyramid of Giza - A Celestial Weapon? Maser, Particle beam weapon.

Velikovsky put forth the reason for pyramids as radiation protection.
This due to his many cosmic disturbances theories starting with seven days
of bright light (including X-Rays, UV etc.) before the flood. So perhaps Egypt
came out of the flood but with many suffering from radiation poisoning.
In any case Velikovsky did not run down the events but true such a structure
might offer protection. The diagnosis is easy, were you inside or outside when
the event took place and are you suffering from the results or not. Like did you
look at or were you close to the pillar of fire.