Just when you thought biotech couldn't get any more fascinating.

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Biology and medicine have long known that more advanced forms of life emit various forms of energy as they go about their business. Mammals emit heat as a byproduct of their metabolisms, and the electrical activity of the musculature, cardiopulmonary, and central nervous systems may be picked up by sensitive instruments and used for diagnostic purposes. Recently, researchers in Japan have discovered that human bodies also emit light in the visble spectrum, albeit in a fashion that most sensors cannot detect. In fact, most lifeforms emit visible light in some fashion though the mechanism behind it isn’t understood. This …

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Defcon ups the stakes: Cracking for pinksies.

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Every year at Defcon they assemble a huge computer network and populate it with machines of all kinds as part of a competition. The objective is simple: Crack as many of the system on the network as you can, find the flag (it's a Capture the Flag competition), and defend your turf as best you can. The game requires the competitors to think fast on their feet because they don't know what they'll run into on the CtF network, and they'll be faced with network services that they may never have seen before. The challenge is to find vulnerabilities in …

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