Lêer:Atomic Clock-Louis Essen.jpg

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Atomic_Clock-Louis_Essen.jpg(620 × 360 piksels, lêergrootte: 73 KG, MIME-tipe: image/jpeg)

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Opsomming

Beskrywing
English: Louis Essen and J. V. L. Parry standing next to the world's first caesium atomic clock, developed at the UK National Physical Laboratory in 1955.
Deutsch: Louis Essen und J. V. L. Parry zeigen die erste Caesium-Atomuhr (1955)
Datum
Bron http://www.npl.co.uk/upload/img/essen-experiment_1.jpg
Outeur National Physical Laboratory

Lisensiëring

Public domain
This work created by the United Kingdom Government is in the public domain.

This is because it is one of the following:

  1. It is a photograph taken prior to 1 June 1957; or
  2. It was published prior to 1974; or
  3. It is an artistic work other than a photograph or engraving (e.g. a painting) which was created prior to 1974.

HMSO has declared that the expiry of Crown Copyrights applies worldwide (ref: HMSO Email Reply)
More information.

See also Copyright and Crown copyright artistic works.

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MIME type Engels

image/jpeg

checksum Engels

60a0f2c369087d9515da4e8d411e4740cc99a9ba

data size Engels

75 162 greep

height Engels

360 pieksel

width Engels

620 pieksel

Lêergeskiedenis

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Datum/TydDuimnaelsketsDimensiesGebruikerOpmerking
huidig16:53, 7 November 2016Duimnaelskets vir weergawe vanaf 16:53, 7 November 2016620 × 360 (73 KG)TholmeHigher quality from http://www.npl.co.uk/upload/img/essen-experiment_1.jpg
17:02, 21 Desember 2008Duimnaelskets vir weergawe vanaf 17:02, 21 Desember 2008274 × 169 (13 KG)Coenen{{Information |Description={{en|1=Louis Essen standing next to the world's first atomic clock (1955)}} |Source=http://www.npl.co.uk/upload/img_400/atomic_clock.jpg |Author=National Physical Laboratory |Date=1955 |Permission= |other_versions= }} == Licensi

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