A Long-Term Survival Guide - Improvised Towers
Knots and ropes
Section I — Prehistory. We look at how and why people did math. We don’t try for a thorough history, just to give a couple ideas. Our source is a nice.
The Rodeo
Verb Issue S216 (Nov. 16-22, 2012)
Verb Issue R54 (Nov. 16-22, 2012)
