On the first day, he used the cooling device after riding, and found that his temperature returned to normal within a few minutes.

ECONOMIST: Athletics

In April, a failed cooling device in turn caused a break-down in a mechanism that cleans the air in Mir's cabin of carbon dioxide.

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To find out what effect a cooling device might have on athletic performance, Dr Grahn and Dr Heller recruited a colleague who was a recreational weightlifter.

ECONOMIST: Athletics: Cool, man | The

To confirm that the device works by cooling the body, Dr Grahn himself volunteered to be the next test subject.

ECONOMIST: Athletics: Cool, man | The

ThermaCool zaps the skin with a combination of a cooling spray and radiofrequency energy administered through a handheld device.

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The device is much better at preservation than the current method, cooling livers with ice.

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Fortunately, to cool one BTU, most cooling systems require only about one-third the power drawn by the device being cooled.

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