Something I want to learn to do…

Flat-Folding Steel Grocery Bag

Flat-Folding Steel Grocery Bag

From Oxford “origami engineers” Weina Wu and Zhong You, published as A solution for folding rigid tall shopping bags in Proceedings of the Royal Society A. ScienceNOW has an item that at least tries to explain why this achievement is scientifically significant, rather than just really cool. Which, frankly, I don’t quite understand. But then, for our purposes, “really cool” is all the justification we need.

Giant Machete-Shooting Slingshot

Giant Machete-Shooting Slingshot

I love Cory Doctorow’s droll description of this creation almost as much as I love the thing itself:

This handy gentleman has built an (arguably ill-conceived, but nevertheless impressive) rifle-cum-slingshot that fires machetes, should you find yourself with the need to fire machetes.

The handy gentleman in question is YouTuber Jörg Sprave, slingshot enthusiast par excellence. He blogs about it here. [via Boing Boing]

Coffee can radar

Coffee can radar

Whats more hardcore than making your own synthetic aperture radar system? How about teaching a class how to build their own using some breadboardable electronics, empty coffee cans, and a spare laptop? That’s exactly what radio whiz Greg Charvat did this semester at MIT, and you can see some of the results that students are […]