It's been a long time in coming, but it looks like Google and Samsung's love child, the Nexus S -- a favorite around these parts -- is finally available with AT&T's 850 and 1900 MHz 3G bands from online retailer Negri Electronics, for $600 in your choice of black or white. It's not the first time we've seen the elusive Samsung GT-I9020A in the wild: it's already appeared both in the hands of the FCC and on the Bluetooth SIG's website. We've also seen pictures of a Nexus S with a white battery cover before. And here's more: we already knew the AWS version of the Nexus S was coming to Canada via Mobilicity, but according to MobileSyrup, you'll soon be able to pick up the Nexus S on Fido and Rogers for C$500 contract-free or C$100 with a three-year commitment, and these two carriers use the same 3G frequencies as AT&T in the US. So, until we hear something official from Samsung or Google, hit up our plethora of source links below.
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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