Cathode ray particles

It was demonstrated that cathode rays are streams of negatively charged particles and not waves, leading to a better understanding of their nature. This discovery was crucial in confirming the particle nature of cathode rays.
 Jean-Baptiste Perrin France 1895 Cathode ray particles

It was demonstrated that cathode rays are streams of negatively charged particles and not waves, leading to a better understanding of their nature. This discovery was crucial in confirming the particle nature of cathode rays.