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Faili:Davisson and Germer.jpg

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Davisson_and_Germer.jpg ‎(piseli 334 × 339, saizi ya faili: 24 KB, aina ya MIME: image/jpeg)

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Muhtasari

Maelezo
English: Clinton Joseph Davisson (left; 1881-1958) and Lester Halbert Germer (right; 1896-1971) in 1927, physicists who performed the davisson-Germer experiment in 1923-1927 at Bell Labs, that demonstrated the wave nature of matter theorized by Louis de Broglie in 1924.
Tarehe first published in 1927
Chanzo Appears in Electronics magazine, McGraw-Hill Co., New York, Vol.8, No.9, September 1935, p.25 without attribution. This publication's copyright would have been renewed in 1963. The Online Books record of copyright renewals for Electronics lists no renewals. Therefore it was not renewed and is in the public domain
Mwandishi Unknown

Hatimiliki

This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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Public domain
This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.

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Captions

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Clinton Davisson and Lester Germer, of the Davisson-Germer experiment

Items portrayed in this file

depicts Kiingereza

Lester Germer Kiingereza

media type Kiingereza

image/jpeg

checksum Kiingereza

11233790ce461fed2b1d3a5ac96ebe88cb9ee9da

Namna ya utambuzi: SHA-1 Kiingereza

data size Kiingereza

24,602 Baiti

Urefu

339 pixel

width Kiingereza

334 pixel

Historia ya faili

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Tarehe/SaaPicha ndogoVipimoMtumiajiMaelezo
sasa hivi10:13, 17 Februari 2006Picha ndogo ya toleo la 10:13, 17 Februari 2006334 × 339 (24 KB)ElectronClinton Joseph Davisson (left; 1881-1958) and Lester Halbert Germer (right; 1896-1971) in 1927. Author unknown, the photo was the first published in 1927 (more then 70-ty years ago)

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