User blog:The Archdemon/Random Calculations

The Feat
"Amenemhat said it out loud, everybody was paying attention and then, silence. Furious, he raised his hand above his head, pointing to the deep blue sky. A heartbeat. Suddenly, the sky turns black. The people could hear the thunder. The people could feel the wind. The people could see the rain. The people could sense the storm. It was already there. The enterity of Cairo was at amazement. The power of the Pharaoh was unquestionable"

The Calculation
Giza is 528 km². If it is circular, its radius would be around 12.9 km (or 12900 m)

To get KE, I'll need mass and speed. To get mass I'll need volume and density. I've got density, 1.003 kg/m³, so I'll need volume.

Average height of storm clouds is 13 km.
 * Volume and mass


 * V = π * r² * h

V = π * 12.9² * 13

V = 6796300000000 m³

Density is 1.003 kg/m³, which means 20553700000000 kg.

A heartbeat = one second
 * Speed

So, it traveled 12.9 kilometres in one second. This is 12900 m/s.


 * KE
 * KE = 1/2 * (M * Velocity²)

KE = 1/2 * (6816690000000 * 166410000)

KE = 567182691450000000000 joules (or 135.5 gigatons, High 6-C)