List of Particles - Classification By Speed

Classification By Speed

  • A tardyon or bradyon travels slower than light and has a non-zero rest mass.
  • A luxon travels at the speed of light and has no rest mass.
  • A tachyon (mentioned above) is a hypothetical particle that travels faster than the speed of light and has an imaginary rest mass.

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Famous quotes containing the word speed:

    “There exist certain individuals who are, by nature, given purely to contemplation and are utterly unsuited to action, and who, nevertheless, under a mysterious and unknown impulse, sometimes act with a speed which they themselves would have thought beyond them.”
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