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单词 philosophical candle
释义

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philosophical candle
philosophical candle n. Chemistry Obsolete a light provided by a jet of burning hydrogen.
ΘΚΠ
the world > matter > light > artificial light > an artificial light > artificial light defined by light-source > [noun] > gaslight or lamp > using specific type of gas
philosophical candle1747
thermo-lamp1828
oxygen lamp1874
1747 F. Watkins Particular Acct. Electr. Exper. 63 To make a philosophical candle with three ingredients, neither of which will burn separately.
1822 T. Webster Imison's Elem. Sci. & Art (new ed.) II. 51 On this principle is constructed the philosophical candle, which cannot be easily blown out. Fill with hydrogen gas, a bell glass, furnished with a capillary tube; compress the gas.., apply a lighted taper to the upper extremity of the tube; the gas will take fire, and exhibit a candle, which will burn till all the gas is exhausted.
1861 M. Faraday Hist. Candle 88 There is the hydrogen burning. There is our philosophical candle.
extracted from philosophicaladj.n.
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更新时间:2024/12/22 18:04:16