A History of MechanicsDover Publications, 1988 - 662 стор. A remarkable work which will remain a document of the first rank for the historian of mechanics. -- Louis de Broglie |
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... electron ( in the sense that we attach to the term ) . ” Finally , Einstein calculates the kinetic energy of an electron , initially at rest at the origin 0 , which is displaced along the axis Ox under the action of an electrostatic ...
... electron by a process of impact with particles - which are necessarily very fast - would lead to the same result . We come to the concept of " trajectory " of an electron . " The commonly used expression [ in the old quantum theory ] of ...
... electron . For this reason the mean life of the positive electron is 10-9 secs in water and 10-6 secs in air . There- fore the positive electron is only stable in a vacuum which explains why it was first discovered in cosmic rays . If ...
Зміст
CHAPTER ONE HELLENIC SCIENCE | 19 |
ALEXANDRIAN SOURCES AND ARABIC MANUSCRIPTS | 32 |
THE XIIIth CENTURY THE SCHOOL OF JORDANUS | 38 |
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