The Progress Of Physics During 33 Years (1875-1908); Four Lectures Delivered To The University Of…

Paperback | February 5, 2012

bySir Arthur Schuster

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911. Excerpt: ... LECTURE III During the first few days of January 1896, I was returning to Manchester after a short Christmas holiday, and on my way home called at the Laboratory for my letters. I opened a flat envelope containing photographs, which, without accompanying explanation, were unintelligible. Among them was one shewing the outline of a hand, with its bones clearly marked inside. I looked for a letter which might give the name of the sender and explain the photographs. There was none, but inside an insignificant wrapper I found a thin pamphlet entitled:--"Uber eine neue Art von Strahlen"--(on a new kind of rays) by W. C. Roentgen. This was the first authentic news that reached England of a discovery made at the end of the year 1895, which both directly and indirectly gave a tremendous impulse to experimental science. Before I left the room, and although my family was waiting for me in the cold outside, I had read and re-read Roentgen's account, which concisely but convincingly described the experiments, by which he had with remarkable ability, investigated and determined the main properties of the new radiation. Briefly they are as follows:--the radiationsets out from the place where the kathode ray strikes! an obstacle. In the original experiment this was the wall of the glass tube, but as subsequently found, a metal target acts equally well or better. The rays are more penetrating than any that were known at the time of the discovery, but are absorbed more or less by all substances. The radiation acts on a photographic plate or on a phosphorescent screen, which becomes luminous under its influence. If a leather purse containing coins be held up between the source and the screen, the shadow of the purse is only faintly indicated while the shadows of the coins ...

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911. Excerpt: ... LECTURE III During the first few days of January 1896, I was returning to Manchester after a short Christmas holiday, and on m...

Format:PaperbackDimensions:44 pages, 9.69 × 7.44 × 0.09 inPublished:February 5, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217282989

ISBN - 13:9780217282987

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