17h 17min, jan 26, 1897 y - J.J. Thomson
Description:
J.J. Thomson discovered electrons and noticed that and atom can be divided and concluded that atoms are made of positive cores and negatively charged particles within it. His discoveries have helped people today to have a better understanding of the atom and its generic makeup.Added to timeline:
Date:
17h 17min, jan 26, 1897 y
Now
~ 128 years ago