File:330-PSA-23-65 (USN 1108798) (22945727665).jpg
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![File:330-PSA-23-65 (USN 1108798) (22945727665).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/2/2a/330-PSA-23-65_%28USN_1108798%29_%2822945727665%29.jpg/753px-330-PSA-23-65_%28USN_1108798%29_%2822945727665%29.jpg?20180710051458)
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[edit]Description330-PSA-23-65 (USN 1108798) (22945727665).jpg | 330-PSA-23-65 (USN 1108798): Project Sealab II is scheduled for late next summer when an underwater residence will be established 250 feet beneath the Pacific, one mile off La Jolla, California. Two ten-man diving teams will live in the undersea laboratory for periods of 15 to 30 days. Sealab II, shown here in an artist’s conception, will be a cylindrical structure 50 by 12 feet, designed to provide easy access to the sea. Atmospheric pressure within the lab will be 100 pounds per square inch, the same pressure as that of the sea at 250 feet. As in Sealab I, conducted 30 miles off Bermuda last July, the major objective of Sealab II will be to determine how much useful work can be accomplished by divers in an ocean environment at great depths. The divers will breathe a specially formulated gas mixture consisting of Helium, Oxygen and Nitrogen, with Helium the major component. Sealab II will be self-sufficient with respect to food, water, and breathing the gas mixture for at least six weeks. Photograph released February 5, 1965. (2015/11/10). |
Date | |
Source | 330-PSA-23-65 (USN 1108798) |
Author | National Museum of the U.S. Navy |
Licensing
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This image was originally posted to Flickr by Photograph Curator at https://flickr.com/photos/127906254@N06/22945727665 (archive). It was reviewed on 10 July 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the Public Domain Mark. |
10 July 2018
Public domainPublic domainfalsefalse |
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This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
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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
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 05:14, 10 July 2018 | ![]() | 2,764 × 2,200 (8.62 MB) | Hiàn (alt) (talk | contribs) | Transferred from Flickr via #flickr2commons |
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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 | NIKON CORPORATION |
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Camera model | NIKON D80 |
Exposure time | 1/400 sec (0.0025) |
F-number | f/10 |
ISO speed rating | 1,600 |
Date and time of data generation | 11:27, 10 November 2015 |
Lens focal length | 24 mm |
Width | 3,872 px |
Height | 2,592 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS6 (Windows) |
File change date and time | 09:04, 11 November 2015 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 11:27, 10 November 2015 |
Meaning of each component |
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Image compression mode | 4 |
APEX shutter speed | 8.643856 |
APEX aperture | 6.643856 |
APEX exposure bias | 0 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 50 |
DateTimeOriginal subseconds | 50 |
DateTimeDigitized subseconds | 50 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 36 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Hard |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 3073408 |
Lens used | 12.0-24.0 mm f/4.0 |
Date metadata was last modified | 04:04, 11 November 2015 |
Unique ID of original document | B5F4E471ECB66AF63D41761FAFDEC14D |