单词 | balmer |
释义 | † balmern.1 Obsolete. rare. (He who or) that which embalms. ΘΚΠ the world > life > death > disposal of corpse > preparation or treatment of corpse > [noun] > embalming > one who powderer1555 embalmer1587 balmera1618 salter1705 a1618 W. Raleigh Remains (1644) 256 Bloud must be my Bodies only Balmer..No other Balm will there be given. This entry has not yet been fully updated (first published 1885; most recently modified version published online June 2021). † balmern.2 Obsolete rare. ‘Apparently some kind of coloured cloth.’ Halliwell. ΘΚΠ the world > textiles and clothing > textiles > textile fabric or an article of textile fabric > textile fabric > textile fabric of specific colour > [noun] > other balmera1400 sturgeon1407 nacarat1839 champagne1881 a1400 Chester Plays 172 Princes, prelates of price Barrones in balmer and byse. This entry has not yet been fully updated (first published 1885; most recently modified version published online June 2021). Balmern.3 Physics. Used attributively and in the possessive with reference to a series of lines discovered by Balmer in 1885 ( Ann. d. Physik u. Chemie 25 80) in the visible and ultraviolet part of the spectrum of atomic hydrogen, with wave numbers represented by the formula R(1/22 − 1/m2) (where R is the Rydberg constant and m = 3,4,..). ΘΚΠ the world > matter > physics > atomic physics > decomposition of light, spectrum > [adjective] > referring to discoveries by specific scientists Balmer1891 Zeeman1898 Pickering1914 Lyman1922 Brackett1930 1887 Encycl. Brit. XXII. 379/2 As a first approximation Balmer's expression gives a very good account of the hydrogen spectrum.] 1891 Sci. Trans. Royal Dublin Soc. 2nd Ser. 4 567 The discovery of Balmer's law has stimulated other inquirers to search for similar simple laws connecting the oscillation-frequencies. 1899 Astrophysical Jrnl. 9 213 The value of the wave-length..for hydrogen gas in vacuum tubes agrees with that deduced from Balmer's formula. 1901 Proc. Amer. Acad. Arts & Sci. 37 163 I have been unable to photograph the still weaker hydrogen lines of Balmer's series. 1922 Encycl. Brit. XXXII. 559/2 The formulæ for the hydrogen series are as follows:—Lyman series: ν = N/12 − N/m2 (m = 2, 3,…). Balmer series: ν = N/22 − N/m2 (m = 3, 4,…). Paschen series: ν = N/32 − N/m2 (m = 4, 5,…). 1958 New Scientist 30 Jan. 17/3 The discharge showed Balmer lines for 20 microseconds. 1970 G. K. Woodgate Elem. Atomic Struct. vi. 104 Equation (6.31) is obviously a modification of the Balmer formula for hydrogen. 1988 Nature 27 Oct. 802/2 Spectra that are dominated by Balmer line emission are seen in a number of supernova remnants (SNR). This entry has not yet been fully updated (first published 1993; most recently modified version published online September 2018). < n.1a1618n.2a1400n.31891 |
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