If you've listened to a top 40 radio station in the past few years, you've probably noticed a distinct electronic warbling that seems omnipresent in pop vocals. Ever wondered how this type of robotic singing is created? The software behind the effect is called Auto-Tune - think of it as Photoshop for audio - and was invented by none other than an engineer.

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Students at UC Berkeley have created another mechanical creature: the robotic cockroach. ROACH mimics the insect's ability to traverse difficult ground swiftly, crawl into tiny spaces, and survive long falls. In the future it might be used to help rescue earthquake survivors.

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