Cathode rays

Cathode rays are streams of particles called electrons observed when a high voltage is applied across a gas in a vacuum tube. These rays travel from the cathode (negative electrode) toward the anode (positive electrode) and can produce effects like glowing screens or magnetic deflection. Their discovery was crucial in understanding the nature of electrons, leading to advances in electronics and physics. Cathode rays demonstrate that atoms are divisible and contain smaller charged particles, fundamentally changing our understanding of matter.