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Sure, we all love jet packs. Who doesn’t enjoy strapping a gigantic tube of highly flammable fuel to their back and igniting it so it can propel you hundreds of feet into the air? Well, an inventor named Raymond Li has a different idea, one which he’s just managed to patent: a water-propelled rocket pack. The new design would use a system of conduits which route pressure to independently pivoting thrust nozzles, while the actual engine, pump, and dangerous gases remain floating on water in a self-contained, buoyant package. It’s somewhat unclear if you’ll be able to rocket over land using this device (the fact that the engine is water-based would suggest no), though it is an interesting development for jet-pack enthusiasts.

[Via Wired]

Sure, it’s all well and good to simply smack the “snooze” button on your alarm clock when you want to get a few more Zs, but isn’t there a better, more exciting way to make yourself late to work? You bet your sweet you-know-what there is… accelerometers! One clever Make-er / modder hacked his alarm clock so that you can punch, slap, or flick the entire clock to get the alarm to stop blaring its ear-destroying wake-up call… at least for about nine minutes. Feel like burning through a weekend and putting together a clock which will make you the envy of all your friends? Motor over to the how-to and get the info. Want to see the clock in action? Check the video after the break.

[Via Make]