Just as quantum electrodynamics describes how electrons are bound in atoms by the electromagnetic force, mediated by the exchange of photons, quantum chromodynamics (QCD) describes how quarks are bound inside hadrons by the strong force, mediated by the exchange of gluons. QCD seems to allow hadrons constructed from increasingly many quarks to exist, just as atoms with increasing numbers of electrons exist, yet such...
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Study: Fewer Bay Area residents are searching for homes in Seattle
Searching for logo news? Bing tweaks design for third time in six years
An Internet search on the evolution of the Bing logo returned some fresh hits Thursday as tweaks were made at the 6-year-old Microsoft product. It’s the third variation of the logo, which was last updated in September...