You still can't play them with an iCade cabinet just yet -- though that's coming, in June -- but Atari has now delivered quite a present to iPhone, iPad and iPod touch owners. The company has just released its Greatest Hits collection for iOS devices, which includes 18 classic arcade games and 82 Atari 2600 games -- those available either in 25 separate packs for $0.99 apiece, or in one massive time sink bundle for $14.99 (Pong comes free with the app itself). As you can see, you'll also get things like the original box art and arcade cabinets for each game, and some of the titles will even let you play head-to-head with a friend over Bluetooth. Ready to get started? You know where to find it.
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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