Greenhouse effect – atmospheric heating caused by certain gases in Earth’s
atmosphere that are transparent to sunlight but absorb and reflect heat that comes from
Earth’s surface.
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Complete Detail on "Greenhouse effect"
Posted by : ASHWIN PATEL on Thursday, September 24, 2009 | Labels: Greenhouse effect, School project | 12 Comments
Build Your Own biogas Generator.
Teach...build...learn...renewable energy!
What Is Biogas?
Biogas is actually a mixture of gases, usually carbon dioxide and methane. It is produced by a few kinds of microorganisms, usually when air or oxygen is absent. (The absence of oxygen is called “anaerobic conditions.”) Animals that eat a lot of plant material, particularly grazing animals such as cattle, produce large amounts of biogas. The biogas is produced not by the cow or elephant, but by billions of microorganisms living in its digestive system. Biogas also develops in bogs and at the bottom of lakes, where decaying organic matter builds up under wet and anaerobic conditions.READ MORE
Posted by : ASHWIN PATEL on Monday, September 21, 2009 | Labels: Build Your Own biogas Generator, School project | 0 Comments