“The first principle is that you must not fool yourself - and you are the easiest person to fool. So you have to be careful about that. After you've not fooled yourself, it's easy not to fool other scientists. You just have to be honest in a conventional way after that.”
Richard Feynman

Surely You're Joking Mr. Feynman

Lime and Clay under a Microscope

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Since I’ve been immersed in working with natural binders on our earthbag-cellar journey I’ve been in awe of and thinking a lot about the natural binders lime and clay.

Yesterday this image of chalk under an electron microscope appeared in my twitter feed and took my breath away:

I then searched for and found this image of clay under an electron microscope:

The rich geomtery of these water-loving natural materials seems to explain their amazing binding qualities.

It seems that the lime particle (chalk) is approximately three times larger than the clay particle!

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