Remember the Lark Up, that alarm clock that's likely to scare the bejesus out of you by sending vibrations through your unsuspecting wrist? The company's already taking pre-orders, but come June 14, you'll finally be able to waltz into an Apple store and handle one in person. For $129, it promises its silent vibrations won't wake your bedfellow, but if you've got a New Agey streak you can spend an extra $60 for one that analyzes your seven-day sleep history, including how long it took to fall asleep and how many times you woke during the night. For now, it's only available for iOS (hence, the Apple Store launch) but an Android version's predictably on the way, too. So is all this worth a good night's sleep? We'll leave that to you and your bed partner (or partners, if it's been that kind of week).
As you may know, crafting a katana is a delicate process that involves carefully constructing a razor-sharp high-carbon edge around a soft shock-absorbent core. One day though, smiths and forging fires could be replaced by electrode-wielding mad-scientists, with the technology to selectively harden and soften metal at will. At least that's what we envisioned when we read about Jörg Weißmüller's breakthrough research in the field of nanomaterials. The German scientist discovered that by placing precious metals in acid he could create tiny ducts through corrosion. Once those channels are flooded with a conductive liquid, electrical currents can be used to harden the material and, if you change your mind about the brittle results, the effect can easily be reversed to make it soft again. The tech could eventually lead to self-healing vehicle armor or scratch-resistant cellphones -- but, really, we just want to zap our way to a high-quality samurai sword. Physorg
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