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.
Read more about this topic: List Of Particles
Famous quotes containing the word speed:
“It was undoubtedly the feeling of exilethat sensation of a void within which never left us, that irrational longing to hark back to the past or else to speed up the march of time, and those keen shafts of memory that stung like fire.”
—Albert Camus (19131960)
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