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a quark is a fundamental constituent of matter
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Observed in 1968 through deep elastic scatter.
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We found that protons aren't as simple as we thought.
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We thought they were solid particles but they are not.
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Protons in fact are made up of three separate pieces.
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It just gets more confusing as our knowledge increases.
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But that is what a quark is; It's a piece of a proton,
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And they also make up other things including the neutron.
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Oh, up, down, strange, charm, top, bottom
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If you don't know what a quark is, it don't matter you still got 'em.
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And with leptons and bosons, unless something's amiss,
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They make up everything that we can see and that we know exists.
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Things made up of quarks including protons and neutrons
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Are composite particles that physicists call hadrons.
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Many types of hadrons are theoretically described,
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But most exist for only very brief amounts of time.
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Quarks have electric charge, color charge, mass and spin,
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And having color charge means they exist solely inside of
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Other kinds of particles and cannot exist alone.
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Which is why quarks have never been studied on their own.
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Up, down, strange, charm, top, bottom
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If you don't know what a quark is, it don't matter you still got 'em.
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And with leptons and bosons, unless something's amiss,
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They make up everything that we can see and that we know exists.
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Quarks can join together in two different ways,
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Baryons and Mesons, but most instantly decay.
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If a particle has three quarks, then it's a baryon,
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If there's one quark and and anti-quark, then it is a meson.
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These tiny bits of matter are a part of almost everything
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And there is no unified theory to make it less confusing.
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But the fact that we've identified that they exist at all
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Is so god damn remarkable that I just sit in awe.
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Oh, up, down, strange, charm, top, bottom
G F C
If you don't know what a quark is, it don't matter you still got 'em.
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And with leptons and bosons, unless something's amiss,
G F C
They make up everything that we can see and that we know exists.