Jeans, Sir

Jeans, Sir James. The Mysterious Universe, Cambridge University Press, Cambridge, England, 1930 E. P. Dutton Company, Inc., New York, 1958 (paperback edition). 

Jeans, Sir J.H., 1920, The Mathematical Theop of Electricity and Magnetism (Cambridge University Press, Cambridge). 

In 1928, the English scientist and idealist Sir James Jean revived the old heat death argument, augmented with elements from Einstein s relativity theory since matter and energy are equivalents, he claimed, the universe must finally end up in the complete conversion of matter into energy ... 

Dale, Sir Henry 77 Delay 77 Delay, Jean 77 delocalized orbitals 233 Deniker, Pierre 77 Density Functional Theory 55,228,241,271,278 deposition conditions 168 design of the Sawatzky-Kay apparatus 152 Dess-Martin oxidation 11 detailed atomic-level representation 92 determinant 279 diastereoface selectivity 22,... 

By his first wife, Jean Swinton, Professor John Rutherford had a son, John, who died young, and a daughter Anne, who married0 Walter Scott, writer to the Signet, and became the mother of Sir Walter Scott Bart. He married, secondly, on the 9th August, 1743, Anne M Kay, by whom he had five sons and three daughters.. . . Daniel Rutherford, second son of Professor John Rufcher-... 

Ashm. 208, fos. 136-42. In 1599 Forman married Jean Baker, Sir Edward Monninges sisters daughter . She was then 16, and he sometimes refers to her as Ann, but more often as Tronco . 

It often takes time for the implications of experimental data to be understood and to be acted upon. Fraunhofer s earlier observation that the solar D-lines coincided with the spectral lines of a sodium lamp eventually prompted further important experiments. In 1849, Jean Bernard Leon Foucault (1819-1868), a Parisian physicist, made an unexpected discovery. He passed sunlight through a vapor of sodium and he found that the solar D-lines were darker. His conclusion was that the sodium vapor presents us with a medium which emits the rays D on its own account, and which absorbs them when they come from another quarter. The consequences of Foucault s experiment, however, were expressed more cogently by Sir William Thomson (later Lord Kelvin). He drew the following explicit conclusion That the double line D, whether bright or dark, is due to the vapor of sodium. . . That Fraunhofer s double dark line D, of solar and stellar spectra, is due to the presence of vapor of sodium in atmospheres surrounding the Sun and those stars in whose spectra it has been observed. ... 

Another toxin found in plants, in particular tobacco (which is similar to coniine and is another alkaloid), is nicotine. This substance, with which we are aU familiar, is a very toxic chemical, and its presence in cigarette smoke is the essential ingredient that smokers crave. The tobacco plant and the habit of smoking the leaves, known as tobago, was probably first seen by Columbus and his crew in South America. Sir Walter Raleigh also saw the plant in his travels to the new continent of America. Leaves from the plant were sent back to Europe in the mid sixteenth century, and an explorer by the name of Jean Nicot de Villemain sent some seeds back to Europe. He helped to popularize the habit as a panacea, which became widespread in the sixteenth century. From the explorer s name and the name given to the practice of smoking, the plant was called Nicotiana tabacum. The active substance it contained, isolated in 1828, was called nicotine. 

Sir J. J. Thomson dies on August 30 in Cambridge, England. 1942 Jean-Baptiste Perrin dies on April 17 in New York, New York. 

The Dynamical Theory of Gases, Sir James Jeans. 2.75 Electron and Ion Emission from Solids, R. O. Jenkins and W. C. Trodden. 1.35... 

In 1915, Edward Kendall (1886-1972) was the first to isolate thyroxine from the thyroid glands of pigs (Fig. 6.22). [82] From 3,000 kilograms of thyroid glands he obtained by alkaline hydrolysis 33 grams of pure thyroxine. In 1926/27, Sir Charles R. Harington (1897-1972) elucidated the structure of thyroxine, and in 1950, Rosalind Pitt-Rivers (1907-1990) and Jean Roche (1901-1992) simultaneously discovered that by comparison with thyroxine, 3,3 ,5-triiodothyronine was five times more active (Fig. 6.23). 

Jeans instability Instability in a cloud of gas in space due to fluctuations in the density of the gas, causing the matter in the cloud to clump together and lead to gravitational collapse. The conditions under which this occurs were worked out by Sir James Hopwood Jeans (1877-1946) in terms of Newtonian gravity. The analogous analysis of this problem using general relativity theory is the basis of the theory of structure formation. 

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