File:1919 eclipse negative.jpg

From Citizendium
Jump to navigation Jump to search

Original file ‎(700 × 899 pixels, file size: 311 KB, MIME type: image/jpeg)

This file is from a shared repository and may be used by other projects. The description on its file description page there is shown below.

Summary

Description

Negative of the 1919 solar eclipse taken from the report of Sir Arthur Eddington on the expedition to verify Einstein's prediction of the bending of light around the sun. For positive version, see Image:1919 eclipse positive.jpg.

Original caption:

In Plate 1 is given a half-tone reproduction of one of the negatives taken with the 4-inch lens at Sobral. This shows the position of the stars, and, as far as possible in a reproduction of this kind, the character of the images, as there has been no retouching. A number of photographic prints have been made and applications for these from astronomers, who wish to assure themselves of the quality of the photographs, will be considered as as far as possible acceded to.
Date
Source F. W. Dyson, A. S. Eddington, and C. Davidson, "A Determination of the Deflection of Light by the Sun's Gravitational Field, from Observations Made at the Total Eclipse of May 29, 1919" Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Mathematical or Physical Character (1920): 291-333, on 332.
Author F. W. Dyson, A. S. Eddington, and C. Davidson
Permission
(Reusing this file)		 Public domain in the United States because of age (published before 1923).
Other versions File:1919 eclipse positive.jpg
Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1930.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:1919_eclipse_negative.jpg

Captions

negative image of solar eclipse in 1919

Items portrayed in this file

depicts

solar eclipse of May 29, 1919

inception

29 May 1919Gregorian

media type

image/jpeg

checksum

54679a64b728da15e4a5d03acda442b509205a1b

determination method or standard: SHA-1

data size

318,971 byte

height

899 pixel

width

700 pixel

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current17:06, 30 April 2017Thumbnail for version as of 17:06, 30 April 2017700 × 899 (311 KB)imagescommonswiki>Quibikcleaner removal of moiré caused by halftoning

The following file is a duplicate of this file (more details):

There are no pages that use this file.

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "https://citizendium.org/wiki/File:1919_eclipse_negative.jpg"