Now showing items 1-10 of 37
Calculation of the Heat Capacity Curves of Crystalline Benzene and Benzene‐d6
(The American Institute of Physics, 1937-08)
The heat capacity curve for solid benzene has been computed with the help of the set of internal frequencies previously proposed by Lord and Andrews. The agreement with experiment is satisfactory over the entire temperature ...
A Triode Vacuum Tube Scale‐of‐Two Circuit
(The American Institute of Physics, 1938-03)
A vacuum tube scale‐of‐two is described using triodes. Accurate high speed tests of the resolution time showed this to be 6.5×10−6 seconds. New methods of interpolation are also presented.
A PERIODIC RADIOMETER FOR ELIMINATING DRIFTS
(The American Institute of Physics, 1932-04)
It is shown that while the Pfund resonance radiometer reduces the effect of drifts by a factor of several hundred, its advantage over the conventional Moll amplifying system as regards the reduction of the effect of Brownian ...
The Infra‐Red Absorption Spectra of CH3OD and CH2DOD
(The American Institute of Physics, 1938-09)
The infra‐red absorption spectra of CH3OD and CH2DOD between 2.5μ and 24μ have been examined with a KBr prism spectrometer, and with appropriate gratings. The observed bands represent all of the fundamental vibrations ...
The Spectrum of Allene in the Photographic Infra‐Red
(The American Institute of Physics, 1938-10)
The spectrum of allene between 7000 and 12,000A has been photographed under high dispersion, the observed bands being assigned as harmonics and combinations of fundamental frequencies of the molecule. Rotational analysis ...
Infra‐Red Spectra—Observation and Uses
(The American Institute of Physics, 1939-11)
A nontechnical description is presented of methods of observation now in general use in infra‐red spectroscopy, together with some typical examples of their use.
Exchange of Deuterium Between Methanol and Water: Vibrations of the Hydroxyl Group in Methanol and Methanol‐d: The Entropy of Methanol
(The American Institute of Physics, 1938-10)
New measurements of the equilibrium in the exchange reaction between methanol and heavy water, in conjunction with data in the literature, are considered in relation to the vibrations of the hydroxyl group, including the ...