Welcome to today's episode of "You Get What You Pay For," starring some poor sap in Russia who bought an external hard drive in China for a "very, very low price." It seemed like a bargain, until the schmo noticed that video files were picking up from the tail end, as if the preceding footage had vanished. When the folks at a local repair shop tore the disk apart they found a dinky 128MB thumb drive running in a loop, emptying itself when full only to start saving more data. Laugh all you want, but the repair guys (and us, frankly) are still scratching their heads as to how those scam artists pulled off this mod in the first place.
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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