Russian cosmonaut Sergei Krikalev has spent more time in orbit around the Earth than anyone - 803 days, 9 hours and 39 minutes.
And thanks to Unive...
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All elementary particles that have been observed in Geneva at CERN are either fermions or bosons. Fermions build all known types of matter, bosons are either photons or W- and Z-bosons or gluons.
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