Source: cirosantilli/ionization-of-air-by-radiation

= Ionization of air by radiation 

This is how <Marie Curie> was able to precisely detect <radioactivity>, which then led to her discovery of new elements.

\Video[https://www.youtube.com/watch?v=CZ7DoLLwW04]
{title=Ions produced by radiation carry a current by <Institute of Physics>}