Exact(28)
Antimatter The universe was created, it is thought, with equal amounts of matter and antimatter.
So the naive assumption might be that the early universe must have contained equal amounts of matter and antimatter.
Take the Big Bang: if nature were ideally balanced, equal amounts of matter and antimatter would have emerged from it.
Equal amounts of matter and antimatter were created at the big bang but the latter is now noticeable for its absence, despite astronomers' efforts to detect it.
That, in turn, is related to the deeper question of why the universe is made of matter rather than having originally had equal amounts of matter and antimatter.
The best current theory of particle physics, called the Standard Model, suggests that basically equal amounts of matter and antimatter should have been produced in the Big Bang.
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And mark my word: someday protons will be seen to decay and help tell us why the universe is still here after starting out with an equal amount of matter and antimatter that should have totally annihilated 13.8 billion years ago.
The earliest scans in the Mass General experiment showed the volunteers had nearly equal amounts of amygdala activity no matter whose pictures were flashed.
The lysate was centrifuged to remove particulate matter, and equal amounts of protein were separated by 8% sodium dodecyl sulphate polyacrylamide gel electrophoresis and transferred onto nitrocellulose membrane.
It is designed to hunt for subtle differences in matter and antimatter that could help explain how the universe, which was presumably born with equal amounts of both, came to be dominated by matter.
After removal of insoluble matter and nuclei, equal amounts of protein were separated on a SDS-PAGE and transferred to a nitrocellulose membrane.
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