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People always want slimmer, lighter laptop computers—and they want them
to run faster, too. But fast-running components emit a lot of heat and packing
them close together can lead to overheating. So borrowing an idea from cars and
mainframe computers, Toshiba developed a $2500 water-cooled laptop. The
machine is just 2 centimetres thick, making it difficult to cool with a fan
alone. Instead, Toshiba has added a copper pipe filled with water to distribute
heat from the 500-megahertz Pentium processor to the laptop’s magnesium chassis,
which radiates it away harmlessly.