Industry+and+Conservation

 = = Industry and Conservation  __**Old Technology:** Gasoline Engine__- The conventional engine in the majority of cars today. This type of engine burns gasoline.

__Firewood__- Firewood is burnt to heat houses, light homes, and cook.

__Coal__- Coal is burnt in big factories to power the plants.

__Natural Gas__- Natural gas is drilled with crude oil. It is a mixture of ethane, propane, and methane. The mixture contains 73-95% methane. It was used as a light source with oil lamps in Europe and North America during the 19th century.

__**New Technology:** Hybrid Technology__- Engines in vehicles that couples the power of electric and the conventional internal combustion engine that burn gasoline.

__Ethanol Engine__- An engine that burns ethanol which comes from the corn plant. Ethanol burns much cleaner (less C02 emitted) that conventional unleaded gasoline.

__Electric Engine__- An engine that does burn any liquid for energy but instead uses a big and powerful battery that just plugs into a wall socket in a garage.

__Nuclear Energy__- "  Of all the major forms of energy now in use, only nuclear power has truly modern roots. The central insight--that the controlled fission of heavy elements could release enormous energies" (June 27, 2007 ,EIA ).

__Renewable Energy__- Used for centuries but not for electricity, taking energy through water and wind. By hydroelectric plants and wind- driven mills.