科学与环境

After 40 years, CERN finds evidence of a one-in-10-billion particle decay

来源: All Top News -- ScienceDaily · 发布于

After 40 years, CERN finds evidence of a one-in-10-billion particle decay
来源: All Top News -- ScienceDaily

CERN scientists have finally found evidence of a particle decay so rare that it happens only once in roughly 10 billion decays, ending a search spanning more than 40 years. The breakthrough could help physicists uncover hidden particles and forces that lie beyond the reach of tod

CERN scientists have finally found evidence of a particle decay so rare that it happens only once in roughly 10 billion decays, ending a search spanning more than 40 years. The breakthrough could help physicists uncover hidden particles and forces that lie beyond the reach of today's most powerful accelerators.

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Did early humans collect keepsakes 500,000 years ago?
科学与环境

Did early humans collect keepsakes 500,000 years ago?

Most of us are familiar with the urge to pick up a seashell from the beach or keep a stone from a hiking trip. The object itself may be ordinary, but to the person who keeps it, it serves as a reminder of a particular moment, place or person. Where did this behavior come from? Di

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