Tag Archives: Cement

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

Dinosaurs, Liquid Stone, and Radioactivity

Posted on 3 May 2012 by E.M.Smith

Dinosaur fossils can be radioactive. This leads to interesting thoughts about liquid stone and hunting fossils. Continue reading →

Posted in Science Bits | Tagged , , , , , , | 67 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