|
|
Post by Alicja on Mar 3, 2015 9:56:43 GMT
Hello, Our topic for next week is solar energy. I’d like you to read an article/ watch a video on this topic and post a short comment concerning what you’ve read or seen (what was it about? was it interesting? did it meet your expectations? would you recommend it? etc.) along with 3-4 words/ expressions from the text. The words/ expressions should be defined using a monolingual dictionary, e.g. www.oxfordlearnersdictionaries.com/www.macmillandictionary.com/See you on Monday! |
|
|
|
Post by Hugues Charbon on Mar 5, 2015 12:52:12 GMT
www.explainthatstuff.com/solarcells.htmlThis website speaks about solar energy,the author tells us that it is an immense and renewable energy. According to him, it is the energy of the future, there are planes that works with only solar energy. Moreover a part of its aticle explains how works the mechanism to transform solar energy in electricity. But he forgets to say that the use of this type of energy is very expensive and its efficiency is low compared to other electricity sources such as nuclear power.
|
|
|
|
Post by Leo Schmitt on Mar 7, 2015 14:17:29 GMT
|
|
|
|
Post by ashley on Mar 8, 2015 10:38:37 GMT
is.njit.edu/competition/2009/Cat2_2_Winner_Group142/In this article we can find an explication about the solar energy, how it works, the solar resource, and so one. I think this is a good article because it details of how it works. Finally, I think that solar energy is a good subject because it could become the energy of the future and that this type of energy is environmentally friendly. However, this is very expensive in terms of installation and at night it does not work because there is no sunshine.
|
|
|
|
Post by nicolas on Mar 8, 2015 14:07:03 GMT
www.conserve-energy-future.com/Advantages_SolarEnergy.phpThis article expose the different avantages of solar energy. The solar energy is non-polluting, free, clean and renewable energy. The installation of the solar panel are easy, there are no wires or power sources. It can be install on the roof. And the solar panel don't need a lot of maintenance, the solar cells run for a long time. To conclude, this energy is clean energy and is usable by everyone.
|
|
|
|
Post by Jean Baptiste on Mar 8, 2015 14:25:04 GMT
|
|
|
|
Post by Dejonghe Loïc on Mar 8, 2015 15:12:48 GMT
news.nationalgeographic.com/news/energy/2014/11/141111-solar-panel-manufacturing-sustainability-ranking/This article speak about the fact that the market of solar panels is increasing a lot and if people think it's clean energy, manufacturing all those solar panels can have environmental downsides. They are lot of waste like chemicals and electronics waste, the process need a lot of energy and we don't know how to recycle the old solar panels yet. So, the article shows that all manufacturer of solar panels need to follow rules and country who produce them need to have a regulation. I find this article very interesting because it shows the downsides of solar panels and says: if they produce clean energy, their production is ot clean at all for the moment and can be bad for the environnement.
|
|
|
|
Post by rudy on Mar 8, 2015 19:57:51 GMT
www.ucsusa.org/clean_energy/our-energy-choices/renewable-energy/how-solar-energy-works.html#.VPyoH1OG9BIThis article explains how solar energy works. For example, it explains that solar thermal systems use mirrors and lenses to concentrate the rays of the sun, in order to produce very high temperature. It also explains that solar concentrators come in three main designs whose most common is parabolic troughs. These are long, curved mirrors that concentrate sunlight on a liquid inside a tube that runs parallel to the mirror. The liquid, at about 300 degrees Celsius, runs to a central collector, where it produces steam that drives an electric turbine. This article talks also about photovoltaic cells which power spaceships and satellites. It says also some few things about the future of solar energy.
|
|
|
|
Post by Nezar on Mar 8, 2015 21:32:01 GMT
environment.nationalgeographic.com/environment/global-warming/solar-power-profile/This article is about solar energy. It Explains us the composition and functioning of cells, and how solar thermal power plants stock the energy. We can learn more about all technologies that come from solar energy. The article says the advantages and drawbacks of solar energy. The article reports how much solar energy is now spread in the world et how make solar energy more used.
|
|
|
|
Post by Damien Perez on Mar 9, 2015 1:25:23 GMT
|
|
|
|
Post by Dahmane Aniss on Mar 9, 2015 8:11:23 GMT
environment.nationalgeographic.com/environment/global-warming/solar-power-profile/This article deals with different kind of solar energy. Nowadays solar energy produce less than one percent of our demand in energy. Many people know solar energy like photovoltaic cells but other kind exist. For exemple, power plants use it to produce heat and give energy to turn up a steam turbine that generates electricity. Other solar technologies are passive and don't product electricity. In fact, some windows absorb heat and release it to keep the building warm at night. We have to know that total number of using solar energy grow up twenty percent a year and Japan, Germany or United States are major markets for solar cells.
|
|
|
|
Post by Gerfaud Victor on Mar 9, 2015 11:05:53 GMT
|
|
