Atomic Constants deduced from Secondary Cathode Ray Measurements
نویسندگان
چکیده
منابع مشابه
Small - scale structure deduced from X - and γ - ray timing measurements
X-ray timing observations of neutron stars and black holes are among the few available probes of ultrastrong magnetic fields, strong gravity, high densities, and the propagation of thermonuclear burning. Here we review the evidence for these effects revealed with data from the Rossi Explorer in the last five years. We also discuss the exciting prospects for making the first quantitative tests o...
متن کاملDetermination of microscopic interaction constants by x-ray reflectivity measurements
The density profiles of liquid-gas interfaces of binary mixtures are determined by xray reflectivity measurements. The surface tension γ is calculated from the measured data in the framework of the capillary waves theory. It is demonstrated that gradient theory can be used to investigate the van der Waals interaction between the different constituents of the liquid. The determination of Lennard...
متن کاملFerroelectric Cathode Measurements
We have recently initiated an investigation of electron emission from ferroelectric cathodes. our experimental apparatus consisted of an electron diode and a 250 kV, 12 ohm, 70 ns pulsed high voltage power source. A planar triode modulator driven by a synthesized waveform generator initiates the polarization inversion and allows inversion pulse tailoring. Our initial measurements indicate that ...
متن کاملEntropy–enthalpy compensation as deduced from measurements of temperature dependence
The concept of entropy–enthalpy compensation has exercised a peculiar fascination for biochemists since it was first proposed.[1, 2] The idea is that if a particular rate constant or equation constant is measured for a series of sample of the same enzyme from different sources, the variations in enthalpies of activation or of reaction will largely cancelled out by variations in the correspondin...
متن کاملPrecision measurements and fundamental constants.
Recent developments in the techniques for making precision measurements and their use in the determination of the fundamental constants are reviewed. Particularly noteworthy developments are clocks with high stability, the proposed redefinition of the meter in terms of the standard for time, and the increased precision with which electrical standards can be maintained. The relevance of precisio...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1934
ISSN: 0028-0836,1476-4687
DOI: 10.1038/134179b0