What Is The Discovery Of The Cathode Ray Tube By Sir Williams Crooke

The cathode ray tube was invented in 1875 by the name of Sir Williams Crooke. Yet he wasn’t the one to make the big discovery. In 1897, a man by the name of J.J. Thompson conducted a series of experiments to prove the existence of subatomic particles. He wasn’t 100% correct with all of his claims he made but broke the theory John Dalton stated that the smallest form matter could be broken down to was an atom. Having shown the world that there was smaller than an atom, it later caused others to question and dive even deeper. J.J. Thompson didn’t really believe that the atom was the smallest piece to matter. So he did some experiments with running current through a glass tube with the air sucked out of it. That’s what a cathode ray tube is. It has a negative charge attached to the cathode (the metal piece farthest to the side of the tube) and the positive charge attached to the anode (the metal piece closer to the center of the tube). After running current through the cathode he realized that a stream of light was projected from the end that was being charged to the opposite and showing at the inside of the tube. He wasn’t very sure what it meant at first but then he figured it out.

To decipher what this meant he began by using pieces of metal with electricity to them to charge them. One piece of metal was positive and the other was

He knew this because polar opposites attract to each other and polars of the same push away from each other. In both the test with electromagnets and the normal magnet he had observed that the beam would curve inside the tube towards the positively charged metal and propel from the negatively charged metal. If polar opposites attract and the beam attracts to the positive, then it must be a negatively charged beam of