Despite having a readership made up mostly of men, Popular Sciences of old knew their way around a beauty parlor. Especially from the 20s to the 40s, PopSci offered makeup tips and advice to female readers, saying in effect "Look! We've got incredibly detailed cutaways of how things work AND beauty knowhow! What more could you want?"
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.