HackerTube / Video
How the pyramids were built in Egypt
Geopolymer Institute
The Geopolymer Institute presents Joseph Davidovits's theory that the Egyptian pyramids were built from cast artificial limestone, a geopolymer concrete, rather than carved blocks. It demonstrates how few people could make blocks.
HN brings it up as an alternative, fringe theory about pyramid construction, with one commenter saying it was proved by demonstration and analysis.
4 Hacker News mentions · 2017–2024