Ever wondered why metal squeaks? It’s all about the friction between metal surfaces. This friction causes the metal to stick and slip, creating vibrations that produce the high-pitched sound we hear. Learn about the science behind this common phenomenon and why some squeaks are louder than others.
Calgary Fire Department crews battled a blaze at a metal recycling yard in the southeast part of the city on Thursday night. The fire, which sent a large plume of black smoke into the air, took three hours to extinguish and required 19 fire apparatus and 44 firefighters.
