Скачать или смотреть How Proton Discovered? Goldstein Experiment

In this fully Animated short lecture you will learn about the Discovery of proton.

How does the Goldstein Experiment lead to the Discovery of proton?

In 1886. Goldstein conducted an experiment, using a special device called a cathode ray tube. Which has an anode, and perforated cathode, connected to the high-voltage battery Perforated means having holes init.

This tube was filled with gas at low pressure, maintained by a vacuum pump. When an electric current was passed through, something incredible happened!
Goldstein observed that in addition to cathode rays, other rays were also present in the discharge tube. These rays were travelling in opposite directions to cathode rays.

He found that these rays passed through holes present in the cathode. and produced a glow on the walls of the discharge tube.

He called these rays as "canal rays".

These were called canal rays, because they passed through the holes or canals in the cathode, and produced glow. So, what exactly are canal rays? they are actually streams of positively charged particles. called Protons. These rays played a crucial role in the development of atomic theory.

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