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How the pyramids where built in Egypt - YouTube
http://www.youtube.com/watch?v=znQk_yBHre4&feature=player_embedded
http://www.geopolymer.org/category/archaeology/pyramids/ Are the pyramids made out of concrete, an artificial re-agglomerated limestone? Joseph Davidovits an...
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Inside the 1996 Everest Disaster - Ken Kamler - YouTube
https://www.youtube.com/watch?v=Bgqc2m7aBzs
Watch full video at: http://fora.tv/2008/12/12/Dr_Ken_Kamler_Remembers_1996_Everest_Disaster Dr. Kenneth Kamler recalls his harrowing experience on a climb t...