"Anyone who claims to understand quantum theory is either lying or crazy," physicist Richard Feynman once said, according to legend. That situation hasn't changed much in the roughly 90 years since ...

The cornerstone of modern physics, which describes the laws of matter and energy at atomic scale (see atom). The development of quantum mechanics started at the turn of the 20th century and combined ...

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We recently reported on a theory that says our universe might not have gotten its start when it collapsed in on itself and exploded. The theory says that such an event may have been prevented by the ...