One of the mysteries of the English language finally explained.
A hypothetical particle that travels faster than light.
- ‘The biggest problem with bosonic string theory (aside from the lack of fermions) is that the lowest energy state was a tachyon, or a particle mode with negative mass squared.’
- ‘Small subatomic particles such as photons, particles of light, and hypothetical particles called tachyons seem to have no problem reaching light speed.’
- ‘The existence of tachyons is allowed by the equations of Einstein's special theory of relativity.’
- ‘That brings me to the next interesting point - one way to view the momentum of tachyons is to consider that they have imaginary mass.’
1960s: from tachy- ‘swift’ + -on.
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