Today is National Pie Day (the less-cool cousin of March 14's Pi Day) and, to celebrate, we've compiled 10 fun and easy pie-tin crafts from the Popular Science archives.
What do a hipster chandelier, an amateur telescope, and a living-room jet engine have in common? You can make each one with an ordinary pie tin!
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.