A Brief History of Time
Random House Publishing Group, 1998 M09 1 - 240 páginas
#1 NEW YORK TIMES BESTSELLER
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... antiquarks , which is the most natural way to imagine the universe starting out . Matter on the earth is made up mainly of protons and neutrons , which in turn are made up of quarks . There are no antiprotons or antineutrons , made up ...
... antiquarks ; it seems implausible that some galaxies should be matter and some antimatter . Why should there be so many more quarks than antiquarks ? Why are there not equal numbers of each ? It is certainly fortunate for us that the ...
... antiquarks that would remain . ( Had it been an excess of antiquarks , however , we would simply have named antiquarks quarks , and quarks antiquarks . ) Grand unified theories do not include the force of gravity . This does not matter ...
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