This one's about as mysterious as you'd expect from the image above but, according to Android Community, that black slab you see is Kyocera's new Katsura "gaming tablet." Not many other details at the moment, but it is apparently Android-based, and it has what appears to be a rubbery matte black back adorned with a stylized design of some sort. A bit of an oddity, to be sure, but stranger things have come out of Kyocera recently. Hit up the link below for a few more pics, and look for the tablet to make a more official appearance "soon" if Android Community's tipster is to be believed.
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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