File:SOLAR ENERGY IN USE (3522564721).jpg
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Summary
[edit]DescriptionSOLAR ENERGY IN USE (3522564721).jpg |
Solar energy in use: humanity over the last decades have become too dependent on non renewable fossil energy namely oil. This dependence has created a situation which is harmful to man. One of many forms of pollution, air pollution occurs inside homes, schools, and offices; in cities; across continents; and even globally. Air pollution makes people sick — it causes breathing problems and promotes cancer — and it harms plants, animals, and the ecosystems in which they live. Some air pollutants return to earth in the form of acid rain and snow, which corrode statues and buildings, damage crops and forests, and make lakes and streams unsuitable for fish and other plant and animal life. Pollution is changing earth’s atmosphere so that it lets in more harmful radiation from the sun. At the same time, our polluted atmosphere is becoming a better insulator, preventing heat from escaping back into space and leading to a rise in global average temperatures. Scientists predict that the temperature increase, referred to as global warming, will affect world food supply, alter sea level, make weather more extreme, and increase the spread of tropical diseases. Most air pollution comes from one human activity: burning fossil fuels — natural gas, coal, and oil — to power industrial processes and motor vehicles. Among the harmful chemical compounds this burning puts into the atmosphere are carbon dioxide, carbon monoxide, nitrogen oxides, sulfur dioxide, and tiny solid particles — including lead from gasoline additives — called particulates. In the last decades, motor vehicle use rapidly expanded, and emissions of nitrogen oxides, some of the most damaging pollutants in vehicle exhaust, increased 690 percent. When fuels are incompletely burned, various chemicals called volatile organic chemicals (Vocs) also enter the air. Pollutants also come from other sources. for instance, decomposing garbage in landfills and solid waste disposal sites emits methane gas, and many household products give off Vocs. One way to combat pollution is to make use of renewable energy. There are various ways of harnessing nature without destroying it. One good example is the use of wind farms to harness the never-ending wind flows. Malta is in the discussion stage regarding to the feasibility of this method of reducing our dependence on fossil fuels. Another more widespread and less expensive way is to harness solar energy. Solar panels transform the sun’s energy into electricity. A practical use is that of street lamps and a more unusual use is what is shown in this photograph: the lighthouse at Marfa harbour. The red danger lamp is powered by solar panels. The ways of harnessing nature are immense: geothermal energy, sun rays, water, wind and other less common ways. - MALTA |
Date | |
Source | SOLAR ENERGY IN USE |
Author | KNOW MALTA by Peter Grima |
Licensing
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This image was originally posted to Flickr by KNOW MALTA by Peter Grima at https://flickr.com/photos/14752872@N03/3522564721. It was reviewed on 27 August 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
27 August 2023
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current | 16:29, 27 August 2023 | ![]() | 1,280 × 960 (359 KB) | Fabe56 (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 | FUJIFILM |
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Camera model | FinePix S5500 |
Exposure time | 1/350 sec (0.0028571428571429) |
F-number | f/4.5 |
ISO speed rating | 100 |
Date and time of data generation | 03:35, 11 May 2009 |
Lens focal length | 17.2 mm |
JPEG file comment | AppleMark |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | QuickTime 7.2 |
File change date and time | 21:13, 11 May 2009 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 03:35, 11 May 2009 |
APEX shutter speed | 8.57 |
APEX aperture | 4.3 |
APEX brightness | 8.03 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Sensing method | One-chip color area sensor |