Tag Archives: stone

Some notes on Geopolymer, cement, clay bricks unfired, and DIY

Posted on 12 February 2014 by E.M.Smith

How to make your own cement, liquid stones, and some papers showing it is catching on, and how to do it. Continue reading →

Posted in Earth Sciences, History, Tech Bits | Tagged , , , , , | 47 Comments

Roman Obelisk And Big Stones

Posted on 30 January 2013 by E.M.Smith

An existence proof of moving 230 Ton stones with primitive methods. Continue reading →

Posted in History | Tagged , , , | 41 Comments

Liquid Stone

Posted on 22 December 2011 by E.M.Smith

Did the Egyptians and other ancients use some kinds of ‘liquid stone’, perhaps similar to, but different from, our cement and concrete? Continue reading →

Posted in History, Science Bits, Tech Bits | Tagged , , , | 46 Comments

Göbekli Tepe

Posted on 6 January 2011 by E.M.Smith

Göbekli Tepe is a 12,000 year old site. It has ornately and finely carved very large stone pillars. This puts the date of earliest civilization back in time at least double “settled science”. Continue reading →

Posted in Science Bits, Stonehenge | Tagged , , , , , | 82 Comments