A321786 - OEIS

A321786

Decimal expansion of wavelength of the red line of cadmium in dry air at 15 degrees Celsius and 760 mmHg under a gravity of 9.8067 m/sec^2 in angstrom, which defined the angstrom unit until 1960.

%I #13 Dec 19 2018 14:59:31

%S 6,4,3,8,4,6,9,6

%N Decimal expansion of wavelength of the red line of cadmium in dry air at 15 degrees Celsius and 760 mmHg under a gravity of 9.8067 m/sec^2 in angstrom, which defined the angstrom unit until 1960.

%H <a href="https://www.bipm.org/utils/common/pdf/CGPM/CGPM7.pdf">Comptes rendus des séances de la septième conférence générale des poids et mesures [Proceedings of the 7th meeting of the General conference of weights and measures]</a>, (1927).

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/%C3%85ngstr%C3%B6m">Ångström</a>

%e 6438.4696 * 10^(-10).

%Y Cf. A248922.

%K nonn,cons,fini,full

%O -6,1

%A _Felix Fröhlich_, Nov 18 2018