File:The Many Colors of Electric Lights (15473023649).jpg
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Summary
[edit]DescriptionThe Many Colors of Electric Lights (15473023649).jpg |
Description As anyone who has stood in a hardware store knows, light bulbs come in a wide range of types and colors. Incandescent bulbs have a warm glow similar to sunlight, while more energy efficient gas-discharge bulbs come in a variety of shades. Some of the differences in artificial lighting are visible in photographs taken by astronauts aboard the International Space Station. For instance, several distinct colors of electric light are visible in this image of the Tsushima Strait, the shallow body of water that separates southern Japan and South Korea. A member of the Expedition 37 crew took this photograph on October 11, 2013. A cluster of fishing boats is the source of the bluish light near the center of the image. The fisherman are likely luring Todarodes pacificus—a species known as the Japanese flying squid—to the surface with bright xenon bulbs. The city lights on the Korean side of the strait tend to have an orange glow, while those on the Japanese side are greener. The difference is related to the distribution of mercury vapor, metal halide, and high-pressure sodium lamps—the bulb types most often used for street and outdoor lightning. Mercury vapor lights tend to be green, high-pressure sodium is orange, and metal-halide lamps are bright white. Image # ISS037-E-12066 earthobservatory.nasa.gov/IOTD/view.php?id=84571 |
Date | |
Source | The Many Colors of Electric Lights |
Author | NASA on The Commons |
Permission (Reusing this file) |
NASA on The Commons @ Flickr Commons |
Licensing
[edit]This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as: No known copyright restrictionsNo restrictionshttps://www.flickr.com/commons/usage/false
More information can be found at https://flickr.com/commons/usage/. Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information. |
This image was originally posted to Flickr by NASA on The Commons at https://flickr.com/photos/44494372@N05/15473023649. It was reviewed on 27 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions. |
27 September 2015
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:05, 27 September 2015 | 2,832 × 4,256 (2.51 MB) | Sumita Roy Dutta (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 | NIKON CORPORATION |
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Camera model | NIKON D3S |
Exposure time | 1/10 sec (0.1) |
F-number | f/1.6 |
ISO speed rating | 10,000 |
Date and time of data generation | 16:21, 11 October 2013 |
Lens focal length | 50 mm |
User comments | NASA#2007945 |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS6 (Windows) |
File change date and time | 09:09, 16 October 2013 |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 16:21, 11 October 2013 |
APEX shutter speed | 3.321928 |
APEX aperture | 1.356144 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 1 APEX (f/1.41) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 42 |
DateTimeOriginal subseconds | 42 |
DateTimeDigitized subseconds | 42 |
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 | 50 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 2007945 |
Lens used | 50.0 mm f/1.4 |
Date metadata was last modified | 04:09, 16 October 2013 |
Rating (out of 5) | 0 |
Unique ID of original document | 05752CBCF6EF27EA28C08077A8FC5A63 |