File:Nicholas_Christofilos_at_a_blackboard.jpg
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Summary
DescriptionNicholas Christofilos at a blackboard.jpg |
English: Nicholas Christofilos at a blackboard sketching what appear to be Van Allen radiation belts. |
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Author | Unknown photographer |
Licensing
Public domainPublic domainfalsefalse |
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
Items portrayed in this file
depicts
27 August 1958
image/jpeg
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:10, 6 March 2023 | 3,003 × 1,501 (544 KB) | Peaceray | Uploaded a work by {{Unknown photographer |1= }} from *{{url|https://st.llnl.gov/sites/default/files/2019-07/Operation%20Argus.jpg}} *{{cite web |title=Operation Argus |website=Science and Technology, Lawrence Livermore National labratory |date=1958-08-27 |url=https://st.llnl.gov/news/look-back/operation-argus |ref=none | access-date=2023-03-06}} with UploadWizard |
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Metadata
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Width | 3,003 px |
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Height | 2,021 px |
Pixel composition | Black and white (Black is 0) |
Orientation | Normal |
Number of components | 4 |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
Software used | Adobe Photoshop CC 2019 (Macintosh) |
File change date and time | 10:42, 19 July 2019 |
Exif version | 2.31 |
Color space | Uncalibrated |
Date and time of digitizing | 02:50, 17 July 2019 |
Date metadata was last modified | 03:42, 19 July 2019 |
Unique ID of original document | 6DF7B945750FF8B747258ABA8EB9BE11 |