We’ve seen a complicated machine that creates springs by bending stiff wire, but this machine appears to be a bit simpler. It’s fascinating to see how it twirls the metal into a perfect spring by feeding it through a small opening and pressing it against an angled tool to bend it.
Moon Shoes are toys that put a little extra spring in kids’ steps using elastic bands. Since they don’t really make kids jump much higher, maker Allen Pan decided it was time to create a more powerful version. After experimenting with springs and explosives, he settled on compressed air to propel them.