Howstuffworks –  How Tear Gas Works

Howstuffworks – How Tear Gas Works

Publié initialement sur : https://science.howstuffworks.com/tear-gas.htm Par Robert Lamb | 15 November 2011. Trailing white fumes, a silver canister arches over the no-man's-land between the armored riot police and the bulk of your fellow protesters. You duck, but the...