Having trouble hooking up your iPad 2 to Verizon's 3G network? Turns out you're not alone, and thankfully, Apple's well aware of this. In a statement to All Things Digital, Cupertino said it's investigating this CDMA connectivity issue as reported by "a small number of iPad 2 customers," and word has it that a software patch will be available soon. Until then, personal hotspot is your friend, or you could just borrow some mobile WiFi from your actual friends -- protip: a smile goes a long way.
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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