File:Glowing ultrapure helium.jpg
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[edit]DescriptionGlowing ultrapure helium.jpg |
English: About 20% of the visible matter in the universe is helium, but because it is so light and doesn't react chemically with anything, it escaped from Earth into space, when the solar system was young. So now it is quite rare here. Nonetheless it has multiple applications, from making balloons fly to cooling things to extremely low temperatures with liquid helium. Helium 4 nuclei are emitted at radioactive α-decays, this is the only reason why we have helium on Earth. Once it is in the air, it ascents to the uppermost layers of the atmosphere. |
Date | |
Source | http://images-of-elements.com/helium.php |
Author | Hi-Res Images of Chemical Elements |
Licensing
[edit]This file is available from Chemical Elements - A Virtual Museum (Jumk.de Webprojects). (images-of-elements.com). Materials from this website available via Creative Commons Attribution 3.0 Unported License.
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This file is licensed under the Creative Commons Attribution 3.0 Unported license.
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This file is licensed under the Creative Commons Attribution 3.0 Unported license.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:55, 13 September 2013 | 1,000 × 1,000 (171 KB) | Stas1995 (talk | contribs) | User created page with UploadWizard |
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Metadata
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Image title | SONY DSC |
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Camera manufacturer | SONY |
Camera model | DSLR-A300 |
Exposure time | 4/1 sec (4) |
F-number | f/6.3 |
ISO speed rating | 100 |
Date and time of data generation | 20:53, 23 July 2009 |
Lens focal length | 200 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | GIMP 2.6.2 |
File change date and time | 22:16, 23 July 2009 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 20:53, 23 July 2009 |
Meaning of each component |
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Image compression mode | 8 |
APEX brightness | −1.75 |
APEX exposure bias | 0 |
Maximum land aperture | 5.31 APEX (f/6.3) |
Metering mode | Pattern |
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 exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 300 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
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