Tag Archives: stone

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

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

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

Posted in History | Tagged , , , | 41 Comments

Liquid Stone

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

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