Thus these tubes have been called cathode ray tubes. Thomson (seen here in his lab with one of his many hand-made cathode ray tubes)Īssociated with the flow of electricity in such a tube are rays which originate from the negative electrode-the cathode. The first evidence for sub-atomic particles came from experiments with the conduction of electricity through gases in sealed glass tubes at low pressures.įigure : J.J. An eminent organic chemist of the time, Adolf Kolbe, said in 1877, "Dalton's atoms are no more than stupid re table-tapping and supernatural explanations." Some contemporaries of Dalton remained unimpressed.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |