File:DSC01337 - MK-4 Atomic Bomb (44662781022).jpg
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Summary
[edit]DescriptionDSC01337 - MK-4 Atomic Bomb (44662781022).jpg |
English: MK-4 Atomic Bomb was the first mass-produced nuclear weapon in the U.S. arsenal. Over 550 were built. This air-dropped weapon could only be detonated in an air burst, well above ground level, for maximum destruction of a city. The first box entered the arsenal on 19 March 1949, and the last was retired in May 1953.
It was the first nuclear weapon to be deployed overseas since WWII, when nine were sent to Guam during the Korean War in August 1950. The nuclear cores were later sent in April 1951, and plans were made to drop the bombs on seven Chinese and two Soviet cities in the far east by the 43rd Bomb Wing. The MK-4 had a removable core which could be put in the bomb during flight. A well-trained weaponeer could insert the core and ready the bomb for combat use in less than 30 minutes. The uranium or plutonium core was inserted by removing the flat nose plate of the bomb, disconnecting the detonator cables, removing two detonators, removing a polar cap covering the forward hemisphere of high explosives, removing the outer and then inner tapered high explosive lenses, and pulling out a cylindrical plug made up of the aluminium pusher and the natural uranium tamper. This revealed the space for the core, an 11 cm diameter sphere of radioactive materials coated in nickel. The four high explosive lenses weighed about 156 kg; the pusher-tamper 4 kg; and the core nearly 6 kg. The nuclear bomb components were designed by the Los Alamos Laboratory, and the exterior bomb shape was built by American Car & Foundry Company. |
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Date | Taken on 22 August 2018, 11:11 | ||||||||||||||
Source | DSC01337 - MK-4 Atomic Bomb | ||||||||||||||
Author |
creator QS:P170,Q122977591
Please see the license conditions. Also, if used outside WMF projects, the photographer would appreciate if you'd let them know |
Camera location | 45° 21′ 06.44″ N, 76° 02′ 52.75″ W ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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Licensing
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This image was originally posted to Flickr by archer10 (Dennis) at https://flickr.com/photos/22490717@N02/44662781022. It was reviewed on 1 April 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
1 April 2022
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current | 16:03, 1 April 2022 | ![]() | 6,000 × 4,000 (11.31 MB) | Mindmatrix (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | SONY |
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Camera model | ILCE-6300 |
Author | Dennis Jarvis |
Exposure time | 1/15 sec (0.066666666666667) |
F-number | f/3.5 |
ISO speed rating | 2,000 |
Date and time of data generation | 11:11, 22 August 2018 |
Lens focal length | 18 mm |
Width | 6,000 px |
Height | 4,000 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
Software used | Adobe Photoshop Elements 15.0 (Macintosh) |
File change date and time | 18:45, 1 September 2018 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 11:11, 22 August 2018 |
Meaning of each component |
|
Image compression mode | 4 |
APEX shutter speed | 3.906891 |
APEX aperture | 3.61471 |
APEX brightness | −1.38515625 |
APEX exposure bias | 1 |
Maximum land aperture | 3.6171875 APEX (f/3.5) |
Metering mode | Center weighted average |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto bracket |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 27 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Lens used | E 18-200mm F3.5-6.3 OSS LE |
Date metadata was last modified | 15:45, 1 September 2018 |
Unique ID of original document | 8109E8B60D06450E4965176CFCD5359D |