File:Anatase (titania, TiO2) photocatalyst producing hydrogen.jpg
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Size of this preview: 378 × 599 pixels. Other resolutions: 151 × 240 pixels | 303 × 480 pixels | 484 × 768 pixels | 646 × 1,024 pixels | 2,380 × 3,773 pixels.
Original file (2,380 × 3,773 pixels, file size: 6.61 MB, MIME type: image/jpeg)
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Summary[edit]
DescriptionAnatase (titania, TiO2) photocatalyst producing hydrogen.jpg |
English: In the reaction here, photons from the light source (which is just out of frame to the right of the picture) hit the surface of the titania disc, exciting electrons within the atomic structure These then react with the water molecules, splitting it into its constituents of hydrogen and oxygen. In this experiment, chemicals dissolved in the water prevent the formation of oxygen, which would otherwise recombine with the hydrogen. |
Date | |
Source | http://www.ucl.ac.uk/maps-faculty/potw/potw/potw1315 |
Author | University College London Faculty of Mathematical & Physical Sciences |
Camera location | 51° 31′ 29.24″ N, 0° 08′ 00.88″ W | View this and other nearby images on: OpenStreetMap | 51.524789; -0.133578 |
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Licensing[edit]
This file is licensed under the Creative Commons Attribution 3.0 Unported license.
Attribution: O. Usher (UCL MAPS)
- You are free:
- to share – to copy, distribute and transmit the work
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- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:56, 21 August 2013 | 2,380 × 3,773 (6.61 MB) | Uclmaps (talk | contribs) | User created page with UploadWizard |
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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 D3000 |
Exposure time | 1/500 sec (0.002) |
F-number | f/5.6 |
ISO speed rating | 400 |
Date and time of data generation | 14:26, 9 August 2013 |
Lens focal length | 52 mm |
Width | 2,592 px |
Height | 3,872 px |
Bits per component |
|
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 | 11:59, 12 August 2013 |
Y and C positioning | Co-sited |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 14:26, 9 August 2013 |
Meaning of each component |
|
Image compression mode | 4 |
APEX shutter speed | 8.965784 |
APEX aperture | 4.970854 |
APEX exposure bias | 1 |
Maximum land aperture | 5 APEX (f/5.66) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
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 | 78 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 7428935 |
Lens used | 18.0-55.0 mm f/3.5-5.6 |
Date metadata was last modified | 12:59, 12 August 2013 |
Unique ID of original document | CDFC11B4F7D884717FDF1F7413608AE0 |