Happy Birthday, Klaus Roth!

Happy Birthday, Klaus Roth!

Author of popular chemistry articles and books and Professor at Freie Universität Berlin, Germany, celebrates his 80th birthday

How Does a Fire Extinguisher Work?

How Does a Fire Extinguisher Work?

This short video explains the chemistry behind fire extinguishers, including why CO2 puts out flames, and why water is a bad idea for extinguishing oil fires