ddmoit
05-23-2007, 06:25 AM
Anyone fascinated by the chemistry of concrete might enjoy this article about the pyramids...
http://www.livescience.com/history/070518_bts_barsoum_pyramids.html
The widely accepted theory-that the pyramids were crafted of carved-out giant limestone blocks that workers carried up ramps-had not only not been embraced by everyone, but as important had quite a number of holes.
http://www.livescience.com/history/070518_bts_barsoum_pyramids.html
The widely accepted theory-that the pyramids were crafted of carved-out giant limestone blocks that workers carried up ramps-had not only not been embraced by everyone, but as important had quite a number of holes.