Polypropylene and the Cold Snap
Dean Campbell | Sat, 02/20/2021 - 10:43
Cold weather brings about the opportunity to demonstrate glass transition temperatures of polypropylene containers.
Cold weather brings about the opportunity to demonstrate glass transition temperatures of polypropylene containers.
The purpose of this variation on the “dragon’s breath” demonstration is to illustrate that face masks can diminish the movement of particles in the air, an important idea in public health.