around 1869-1875
The Crookes' Tube
Sir William Crookes was a British chemist who contributed to the knowledge of chemistry. One thing he did was discover an element that had a bright green emission line in its spectrum. He named the previously unknown element thallium.
The Crookes tube is a sealed glass tube that exhibits fluorescence in it after voltage is passed through the electrodes inside. It was invented in 1875 by Sir William Crookes.
He is a scientist who modified and experimented with discharge tube
Plasma was discovered by using a Crookes tube, wherein air is ionized in an electrical discharge tube, through the application of a high voltage. It was discovered by Sir William Crookes in 1879.
Cathodes(electrons) (-)
A tube!
1870
William Crookes is known for the study of cathode rays.
Will EVER body says that Sir William Crookes HELP INVENT THE FOURTH STAE OF MATTER......................PLASMA
His father's name was Crookes also.
Sir William Crookes was born on June 17, 1832.