But the problem of powering and cooling a chip bearing millions of lasers would be formidable.

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For cooling, the chip may need a radiator-like heat sink.

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The chip was not cooled by any artificial cooling equipment, Craig Barrett, Intel's CEO, said at the press conference after.

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The hundreds of photovoltaic chips gathering energy at the center will be cooled by the same sort of microchannel water cooling that kept Aquasar from frying, letting each chip safely concentrate 2, 000 times the solar energy it would normally face.

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