Before the bow and arrow there was the atlatl*, or spear-thrower, an ancient weapon that could throw a spear or dart with enough force to penetrate a mammoth’s hide. It was used in North America for about 10,000 years, and used by native Australians and Aleuts as recently as 50 years ago. It’s easy to […]
Get cookin’ with this Japanese-style skewer grill.
Make a cute candy vending machine that only dispenses treats when you knock the secret rhythm on its front panel.
The iPad, wonderful as it is, often needs a stand to hold it. Sure, there are tons available, but they can be flimsy and/or expensive. Here’s one that’s cheap, sturdy, and easy to build. It’ll hold either the original iPad or the iPad 2 in many useful positions. It’s made from ¼”-thick clear or smoked […]
Here’s how to make a pair of Marshmallow Shooters. You’ll be ready for combat in minutes! They’re made of standard ½” PVC pipe and pipe fittings, which just happen to be a perfect fit for mini marshmallows from the grocery store. Just fit the pieces together, bring a bag of mini marshmallow ammunition, and start […]
See photons turned into motion with this solar-powered, magnetically levitating electric motor.
