The Physics of Forty Below

The Physics of Forty Below

The thermometer reads 40 below zero, the only point at which the Fahrenheit and Celsius scales agree. The red liquid within his thermometer is alcohol; mercury freezes at 38 below.

Marginal Metal

Marginal Metal

Ferrous metals usually have less value by weight, which can make profit margins thin for scrap yards when prices drop, especially in places like Alaska with high transportation costs.