Energy smart inventions
 
All over the world, scientists are finding new ways to save energy – and make energy. Sometimes the scientists are kids just like you! The most of the famous inventions are fuel cells, electric cars, microturbines, production of biohuel and etc... more
                 
 
Renewable energy sources
Renewable energy sources include all fuel types and energy carriers, different from the fossil ones. Renewable energy sources include solar energy (which comes from the sun and can be turned into electricity and heat), wind energy, geothermal energy (from inside the earth), biomass from plants, and hydropower from water are also renewable energy sources.
Solar energy
The sun has produced energy for billions of years. Solar energy is the solar radiation that reaches the earth... more
 
Wind energy
Wind is air in motion. It is produced by the uneven heating of the earth’s surface by the sun. Since the earth’s surface is made of ... more
 
Biomass energy
Biomass is organic material which has stored sunlight in the form of chemical energy. Biomass fuels include wood ... more
   
Hydro energy
Of the renewable energy sources that generate electricity, hydropower is the most often used ... more
 
Geothermal energy
Geothermal energy can be used as an efficient heat source in small end-use applications such as greenhouses, but the consumers ... more
 
Ocean energy
Tides are caused by the gravitational pull of the moon and sun, and the rotation of the earth. Near shore, water levels can vary ... more
 
 
 
 

Copyright © 2005 ESD Bulgaria. All rights reserved.