A Brief History of TimeRandom House Publishing Group, 1998 M09 1 - 240 páginas #1 NEW YORK TIMES BESTSELLER |
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... protons and neutrons were " elementary " particles , but experiments in which pro- tons were collided with other protons or electrons at high speeds indicated that they were in fact made up of smaller particles . These particles were ...
... protons . ( If , for example , one observed a number of protons equal to 1 followed by thirty - one zeros for a ... neutrons , which in turn are made up of quarks . There are no antiprotons or antineutrons , made up from antiquarks ...
... proton and one neutron . The deuterium nuclei would then have combined with more protons and neutrons to make helium nuclei , which contain two protons and two neutrons , and also small amounts of a couple of heavier elements , lithium ...
Otras ediciones - Ver todas
A Brief History of Time: From the Big Bang to Black Holes Stephen Hawking,Carl Sagan Vista de fragmentos - 1990 |
Términos y frases comunes
Referencias a este libro
Qualitative Data Analysis: A User-friendly Guide for Social Scientists Ian Dey Sin vista previa disponible - 1993 |
Postmodern Public Administration: Toward Discourse Charles J. Fox,Hugh T. Miller Vista de fragmentos - 1995 |