THE SMALLEST STEAM ENGINE.
A curiosity in engineering has been constructed in America by a clockmaker named Buck. This is in all probability the smallest steam engine ever made, for it it is almost microscopic in its dimensions. It weighs only about 15 grains, and is entirely covered by an ordinary thimble. The stroke of the piston is a little over two millimetres, or 1.12 in., and its diameter is less than a millimetre and a half. Neverthless, the engine is built of 140 distinct pieces fastened together by 52 screws, and three drops of water suffice to fill the boiler and set the engine in motion.
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https://paperspast.natlib.govt.nz/newspapers/PBS18811112.2.28
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Poverty Bay Standard, Volume IX, Issue 998, 12 November 1881, Page 4
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107THE SMALLEST STEAM ENGINE. Poverty Bay Standard, Volume IX, Issue 998, 12 November 1881, Page 4
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