How to make homemade tear gas.
Police use tear gas to maintain control of crowds or cause them to disperse. For citizen survival scenarios, you can use tear gas to ward off enemies, disengage dangerous animals, or to make a location temporarily inhabitable by people. Commercial forms of tear gas are often designated CN (chloroacetophenone) or…
How to build a Trebuchet (Catapult)
A Trebuchet (pronounced treb-oo-shay) is a medieval siege engine that transfers gravitational energy into kinetic energy – similar to a playground see-saw. In ancient times, it was used to launch (throw) projectiles including boulders, dead horses, and diseased bodies into or over castle walls to soften the defenses in preparation…
