jan 1, 1897 - J.J. Thomson's third experiment on Cathode rays was that he measured the ratio of mass to charge cathode rays. Cathode rays we're either very light or massive amounts of charge. Cathode rays are used today to make televisions show us animations or the news. It was also greatly needed back in the days and a new way to have fun.
Added to timeline:
Date:
jan 1, 1897
Now
~ 128 years ago