Why isn't my calculation that we should be able to see the sun well beyond the observable universe valid?
If a photon truly goes through both slits (at the same time), then why can't we detect it at both slits (at the same time)?
Can a wire having a $610$-$670$ THz (frequency of blue light) AC frequency supply, generate blue light?
If the Higgs field gives particles mass, and is present everywhere, then why are there massless particles?
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