Next time you decide to go do something totally extreme like climb a mountain or go down a mountain really fast, you might want to bring one of these new-fangled portable splints. Wrapping around a busted limb using Velcro and flexible plastic strips, the splint then gets a dose of sodium citrate-based gel which hardens it into an inflexible cast. There, now that your pesky broken arm is taken care of, it's time to keep climbing to the top of that mountain!

Personally, any activity that would require me to bring portable instant casts with me seems like something I'll leave to people coordinated enough to not risk breaking their bones that frequently. I'll stick to the low-impact sport of blogging, thanks. — Adam Frucci

New Scientist Tech, via Engadget