LIT­TLE AND OF­TEN

Wheels (Australia) - - CAR OF THE DECADE -

The tiny cen­trifu­gal com­pres­sor is a sim­ple pis­ton which is forced along a cylin­der to­ward the out­side of the wheel as the ro­ta­tional speed in­creases. Only a tiny quan­tity of air is squeezed with each stroke, but many stop-and-start cy­cles add up to a use­ful vol­ume.

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