Physics
Scientific paper
Oct 1871
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1871natur...4r.466r&link_type=abstract
Nature, Volume 4, Issue 102, pp. 466 (1871).
Physics
Scientific paper
THE writer of the article on this subject may be interested in hearing that a meteorograph, similar in some respects to that invented by Prof. Hough, was sent to the International Exhibition just closed in London. It was invented and constructed in Sweden, and one similar is said to have beenperforming satisfactorily for nearly three years. In the Swedish, as in the American instrument, the height of the mercury in the barometer, and the wet and dry thermometers, is felt by steel wires descending the tubes; but in the Swedish instrument the levers to which these wires are attached are acted on by very fine screws, the revolutions of which, translated by a series of wheels into the language of barometers and thermometers, are printed every quarter of an hour on an endless roll of paper. The whole apparatus is set in motion by a galvanic battery, which even winds up the clock which regulates its own action. The barometer is tapped before it is registered, but there is no correction for temperature. The price is 350/.
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