system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How did the word 'radio' get mixed up in so maybe nuclear-related terms, "radioisotope", "radioactive", "radiologist". Does this imply some direct connection between electromagnetic waves and alpha/beta/gamma rays?
gpt
It is the other way around. Radiation or radio comes from the energy going radially out from the source. We use "radio" as a shorthand for electromagnetic radiation under 300GHz but there are lots of different radiation in addition to electromagnetic radiation. Gamma radiation is by the way also electromagnetic but in the 100EHz range. So there is a direct connection between radios and gamma rays and other forms of radiation.