future world power

She may be back in her office: the lecture finished ten minutes ago. I may go shopping tonight, I haven't decided yet. India might win the World Cup, you never kno..

The tides are formed due to the gravitational force of attraction between the earth, sun and moon. During high tides sea water is trapped in a reservoir, and released later to drive turbines, which in turn produces electricity. The block diagram given below illustrates the transformation of energy..

Hydroelectric Power Plants - The electricity produced from flowing water is called Hydroelectric power. The world's first hydroelectric power plant was set up in 1882 in Wisconsin USA. It had a very small output, supplying power only for about 250 l..

Chemical energy stored in the coal is used to heat water producing steam which turns turbines rotating electromagnets, which in turn generates electricity. The majority of power stations in Britain use coal as their energy source. It is wrong to suppose that the coal industry is declining..

Introduction - Newton's laws of motion help us to analyse many kinds of motion. But the analysis is complicated, requiring details about the motion that we simply do not know. Long ago, people used to trade by only exchanging products when the concept of 'money' was yet to be introduced. Now we do ..

The ability of the eye to focus objects lying at different distances is called the power of accommodation of the eye. How Does an Eye Focus Objects at Varying Distances? To focus on distant objects the ciliary muscles relax making the eye lens thin. As a result the focal length of ..

Advantages of Using Solar Energy - It is present everywhere. It is available in plenty. It does not cause any environmental pollution like the fossil fuels and nuclear power. Solar cells last a longer time and have low running costs. In the first half of the twentieth century solar energy was ..

Energy Resources - The supply of energy to the mankind in the present day world is from many different sources. The different sources of energy are as follow..

>Restrictions on rate of production Example: A coconut tree cannot bear more than 200 nuts. Restrictions on prerequisites for reproduction Example: Mating is successful within a species / subspecies. Climatic restrictions on existence of life and reproduction Example: Apple cannot be grown in tropi..

The energy resources of the world are mainly petroleum, coal, wood, nuclear fuels. To conserve the fast depleting reserves of coal and petroleum, attempts are being made by chemists to utilize alternate energy fuels. Nuclear energy, solar energy, ocean energy (hydrogen from seawater), wh..