From the outside, the device looks a little like a vending machine with a really cool touchscreen and no windows.

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Asus has already taken the wraps off a couple of models that have a similar size and weight, as well as that cool tapered look where the front of the machine is thinner than the back.

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In a typical PCR machine a large aluminum block is used to heat and cool the DNA samples.

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Until recently the only equipment for spotting a suitcase bomb was an unwieldy machine the size of a refrigerator, using liquid nitrogen to cool crystal detectors down to 300 degrees below zero and taking hours to produce a reading.

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Until recently the only equipment for spotting a suitcase bomb was an unwieldy machine the size of a refrigerator that used liquid nitrogen to cool crystal detectors down to 184 degrees Celsius below zero and took hours to produce a reading.

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The Paris system is slick in every way: Cool bikes, reasonable prices, excellent placement of stations, and a process that works like a well-oiled machine.

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