It may not be quite as convenient to wear as a watch, but Creative's new Zen Style M300 PMP does have a leg up on the slightly smaller iPod nano in one key respect: it packs built-in Bluetooth 2.1 support so you can use wireless headphones with it. You can also expand the PMP's memory beyond its basic 4GB, 8GB, or 16GB capacities thanks to its microSD card slot, although you won't get a touchscreen here -- the 1.45-inch display is simply complemented by a couple of touch buttons. Otherwise, you'll get a built-in FM radio, a mic for voice recording, a promised 20 hours of battery life, and your choice of four different colors: black, white, red or yellow. Those that can do without Bluetooth can also opt for the slightly cheaper, and otherwise identical M100 model -- look for both to be available in June, with prices running from $40 to $90. Full press release is after the break
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 Jƶrg WeiĆmüller'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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