Clarke john hendrik (5 risultati)

Soft cover. Condizione: Very Good. 1st Edition. Very Good in oversized blue wraps bound on the spine in black. A little wear to the wraps only. Interior pristine. Rare. SCARCE.

Soft cover. Condizione: Good. Edited, and with Introduction by John Hendrik Clarke. Also 40 other writers, artists, actors, sculptors, painters, doctors, lawyers, clerymen, photographers, philosophers. Covers and spine thumbed around edges and corners. Simple binding neat and tidy, yet showing it's age, in need of some TLC. Page edges are heavily discoloured, this halos the pages The odd mark here and there. Previous owner's inscription on head .of title page. General discolouration due to age, throughout, otherwise this book is in good condition. *We always describe the faults of our books meticulously but they usually present better than they sound.…

Paperback. Condizione: Very Good. Photos, 9 x 6", pict wraps, pp101-200, covers rubbed and toned (especially spine), extremities a bit worn, contents with some edge-toning but still a pretty good copy of this SCARCE issue, with "Honoring Dr. DuBois" by Martin Luther King, Jr. (whose photo is on the front cover), "A Letter To Americans" by James Baldwin, a special section on Langston Hughes with a Bibliography, etc.…

Mass Market Paperback. Condizione: Good. First Edition. A clean, unmarked book with a tight binding. Stated First Collier Books Edition. One inch tear on cover at spine. 360 pages. "21 black writers on the most charismatic and pivotal figure in Afro-American history-- who he really was and what he really stood for-- plus the basic writings and speeches of the man himself." Keywords: Malcolm X, Black Revolution, Political Consciousness, Betty Shabazz, John Henrik Clarke, C Eric Lincoln, Albert Cleage, Charles E Wilson, Wikeropropetse Kgositsile, James Boggs, Patricia Ronbinson, Wyatt Tee Walker, Abdelwahab M Elmessiri, Earl Grant.…

Soft cover. Condizione: Very Good. 1st Edition. FIRST EDITION of Bohr, Kramers, and Clarke's influential paper that "contained drastic theoretical proposals concerning the interaction of light and matter." Printed simultaneously in German in Zeitschrift fur Physik. "After Kramers had succeeded in extending the scope of the correspondence argument to the theory of optical dispersion - thus rounding off a treatment of the interaction of atomic systems with radiation that accounted for all emission, absorption, and scattering processes - Bohr ventured to propose a systematic formulation of the whole theory, in which what he called the virtual character of the classical model was emphasized. In this he was aided by Kramers and a young American visitor, J. C. Slater, and the new theory was published in 1924 under the authorship of all three. The most striking feature of this remarkable paper, 'The Quantum Theory of Radiation,' was the renunciation of the classical form of causality in favor of a purely statistical description. Even the distribution of energy and momentum between the radiation field and the 'virtual oscillators' constituting the atomic systems was assumed to be statistical, the conservation laws being fulfilled only on the average. This was going too far: the paper was hardly in print before A. H. Compton and A. W. Simon had established by direct experiment the strict conservation of energy and momentum in an individual process of interaction between atom and radiation. Nevertheless, this short-lived attempt exerted a profound influence on the course of events; what remained after its failure was the conviction that the classical mode of description of the atomic processes had to be entirely relinquished" (Dictionary of Scientific Biography). IN: The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, Vol. 47, No. 281, May 1924, pp. 785-802). London: Taylor and Francis, 1924. Octavo, original wrappers; custom box. The whole issue in original wrappers. Chips to wrappers spine, otherwise fine. RARE in original wrappers.…