Nuclear bombs are easy to make, right? Find some uranium, shove in some explosives and — BOOM! — you’re quite literally done. Um, sorry, nope. The big problem in making a nuclear bomb is that you need enriched uranium, and that’s actually a real pain in the arse to make.
In this video, the engineering guy Bill Hammack explains why that’s the case — and why it means that, fortunately, nuclear weapons aren’t as widespread as you might expect. [YouTube]
This new print by UK design outfit Dorothy looks like your average Macintosh cross-section schematic. But instead of web of wires and chips, there's an entire miniature world dedicated to the history and legacy of Apple and the Mac.
The mass exodus from the Fort McMurray area in Alberta has widened as bushfires continue to spread in and around the ravaged oil town. Officials have had to re-evacuate fleeing residents, while relocating its emergency headquarters some 322km south of the city.
Video. If your five o'clock shadow isn't rugged enough to light a match with, and there's nowhere else to strike one, a rubber band and a second match are all you need to get a fire started. This one's going to require some practice to master, and some amateur sniper skills, but MacGyver would be proud.