3 ms·

I wonder how long the Egyptian pyramids would last.

• lumost 6y ago
  As the pyramids are constructed of limestone, they would desolve during the next wet phase of the sahara ( previous wet period ~20kya and 12.5 kya ). https://en.wikipedia.org/wiki/Sahara_pump_theory https://en.wikipedia.org/wiki/Sahara_pump_theory