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In 1856, Eunice Newton Foote reported that a cylinder rich in carbon dioxide heated more strongly in sunlight and stayed warm longer than ordinary air.

A climate clue in two glass jars

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Foote compared gases in paired cylinders fitted with thermometers, set them in sunlight and recorded their temperatures. She reasoned that an atmosphere with more carbon dioxide would give Earth a higher temperature. Joseph Henry presented her paper at a scientific meeting rather than Foote herself. Her apparatus did not isolate the infrared mechanism later measured by John Tyndall, but her conclusion that more atmospheric carbon dioxide could mean a warmer Earth was strikingly prescient.

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Eunice Newton Foote 1856'da, karbondioksitçe zengin bir silindirin güneş ışığında sıradan havadan daha çok ısındığını ve sıcaklığını daha uzun koruduğunu bildirdi.

İki cam kapta saklı iklim ipucu

Foote, termometre takılmış iki silindirdeki gazları karşılaştırdı; kapları güneşe koyup sıcaklıklarını kaydetti. Daha çok karbondioksit içeren bir atmosferin Dünya'yı daha sıcak yapacağını düşündü. Makalesini bilim toplantısında Foote'un yerine Joseph Henry sundu. Düzeneği, John Tyndall'ın daha sonra ölçtüğü kızılötesi mekanizmayı yalıtmıyordu; yine de atmosferdeki daha fazla karbondioksitin daha sıcak bir Dünya anlamına gelebileceği sonucu çarpıcı biçimde ileriyi görüyordu.

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Background reading: Eunice Newton FooteAttribution and context are revised when stronger evidence appears. Corrections are welcome through the editorial page.

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Next in the open archiveAs NASA's first Chief of Astronomy, Nancy Grace Roman built the agency's space-astronomy programme and became a decisive advocate for the telescope later named Hubble.Q1974

In 1856, Eunice Newton Foote reported that a cylinder rich in carbon dioxide heated more strongly in sunlight and stayed warm longer than ordinary air.

The idea in context

Aynı kart, başka bir dilde.

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