Keeping up with the Egyptians: Building Pyramids

It’s easy to see that building the Egyptian pyramids using a ramp would have been impractical and too labor intensive to make sense. And it's doubtful to think they were built by aliens or giant people, big cranes or flying machines. But how were they built? After years of pondering and running model after model through my mind, I have come up with a theory that makes sense, seems to answer all unreasonable questions, and is clearly possible in their days using simple physics, mechanical me...