The forces of nature are used by man to generate energy for his many needs.
|Essay on Man’s use of the forces of nature.|
Gravity, being a fundamental force of nature, is always present. One of the most obvious effects of gravity is that it makes water flow. The flow of water has long been used by man for various purposes. Rivers are used for travelling and transportation. Dams, both natural and man-made, enable electricity to be generated. On a smaller scale, water power is used to run mills and do other simple work for man.
There is research being carried out to harness the energy of waves. This energy is again converted to electricity to serve man.
By far, electricity is the most versatile of all of nature’s energy. Untamed it is like lightning that .wreaks havoc wherever it strikes. Harnessed properly via giant generators and other devices, electricity provides us with much of the energy we consume. Just think how many of our m. odern appliances run on electricity. lectricity, we will have Without e no electric light, air-conditioner, television, radio electronic , computer, rice coo motor car etc. So it is without doubt our most important source of energy.
The Earth is surrounded by a huge invisible magnetic force field that stays reasonably constant all the time. Ever since the discovery of the magnetic compass, man had made use of it for navigation. The compass is still being used today by aeroplanes and ships that sail the seas. It is an indispensible component of navigation. It enables man to find his way around the entire planet.