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This is likely the easiest one to produce as the frequencies are lower, which is why it was discovered first. TODO original setup.
Also because it is transparent to brick and glass, (though not metal) it becomes good for telecommunication.
Some notable subranges:

Ancestors

  1. Electromagnetic spectrum
  2. Light
  3. Photon
  4. Elementary particle
  5. Subatomic particle
  6. Standard Model
  7. Particle physics
  8. Physics
  9. Natural science
  10. Science
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Synonyms