“ The human mind is not capable of grasping the universe. We are like a little child entering a huge library. The walls are covered to the ceilings with books in many different tongues. The child knows that someone must have written these books. It does not know who or how. It does not understand the languages in which they are written. But the child notes a definite plan in the arrangements of the books…’’

Albert Einstein

E=mc2

One of Albert Einstein’s revolutionary scientific papers was published in 1905, E equals to mc squared was introduced; where ‘E’ is energy, ‘m’ is mass, and ‘c’ is the speed of light in a vacuum. Since then, E equals to mc squared has become one of the most famous equations in the world. Even people with no background in physics have at least heard of the equation and are aware of its prodigious on the world we live in. However, most people do not exactly know what the equation means. In simple terms, the equation represents the correlation of energy to matter; essentially, energy and matter are interchangeable. “Energy cannot be created or destroyed, it can only be changed from one form to another’’.

THE SOURCE OF
ALL CHANGES
Energy is the source of all changes on the planet earth. Earth is a complex of active physical and biological systems which interact and influence one another and change in response to energy in its various forms.

VARIOUS SOURCES AND FORMS OF ENERGY ON EARTH
There are various sources and forms of energy on earth; some exert their influence naturally and others do so through human intervention. The most important source of energy for earth is the sun. Energy radiating from our closest starthe sun provides the natural power that fuels most of the physical and biological processes important to life. Another natural source of energy is the gravitational force which pulls matter toward the centre of earth. Another source of energy is the energy contained in the oceans and rivers. Electrical energy can be generated from the energy released by flowing water. Another natural source of energy is geothermal energy which is heat contained beneath the earth’s crust and includes heat generated within the earth by radioactive decay of unstable atomic isotopes.

ENERGY
CONSERVATION DAY
Energy Conservation Day is celebrated on 14th December globally to highlight the importance of energy consumption and its use in our day to day life, its scarcity and its impact on sustainability of global ecosystems. It focuses our concentration on significant issues facing the future of mankind with respect to energy.

CONVENTIONAL AND NONCONVENTIONAL SOURCES OF ENERGY
The conventional sources of energy :Coal, petroleum, natural gas, water and etc are the conventional sources of energy. The nonconventional sources of energy such as energy from wind, sun, biomass, tidal energy, geothermal energy and even energy from waste material are gaining more importance today. This energy is abundant, renewable, pollution free and eco friendly.

THE ENEGRY OF THE
FUTURE
Nonconventional energy is considered the energy of the future. Considering the benefits of nonconventional energy, many countries have started producing this energy in large scale. There is continuous research for development of technology in this field to reduce the cost of production and to make it more costeffective.

REPLACING THE NONRENEWABLE RESOURCES OF ENERGY WITH THE RENEWABLE ENERGY
National Energy Conservation Day in India is also celebrated on 14th December, to aware people about the importance of energy as well as saving or conserving the more energy by using less energy. Using energy efficiently is very necessary to save it for the future usage. Energy conservation is the only way which helps in replacing the nonrenewable resources of energy with the renewable energy.

ENERGY CONSERVATION AND ENERGY EFFICIENCY
Energy conservation refers to reducing energy consumption through using of an energy service. Energy conservation differs from efficient energy use, which refers to using less energy for a constant service. For example: driving less is an example of energy conservation. Driving the same amount with higher mileage vehicle is an example of energy efficiency.

OBJECTIVES OF THE ENERGY CONSERVATION DAY

a) Encourage people for efficient energy use in order to decrease the energy consumption and prevent the energy loss.
b) Promote people for less energy usage by neglecting the excessive and wasteful uses.
c) It is celebrated to send the message of importance of conserving energy in the every walk of life among people.
d) Promoting the way of process of energy conservation by organizing a lot of events such as discussions, conferences, debates, workshops, competitions and etc all through the country.

WHAT ARE THE ENERGY CONSERVATION MEASURES?

a)We can save the energy by deeply taking care of it such as turning off the unnecessarily running fans, lights, heater etc of daily usage.
b)Water conservation leads to the better energy conservation. There is wastage of around thousands of gallons water per year by the people which can be prevented through various means of water saving solutions like: Less low flow showerheads, Ultra low flush toilet, Faucet aerator, Composting toilet and etc.
c)Insulation plays big role in energy conservation by decreasing the thermal losses in winter seasons as well as thermal gains in summer seasons. For example: natural wool insulation, house insulation, cotton insulation, thermal insulation, cellulose insulation, VOCs in fiberglass insulation and etc.
d)A big amount of energy can be saved by the natural lightings, fluorescent bulbs, fluorescent lamps, linear fluorescent retrofits, solar charged flash lights, sky lights,
smart windows, LED lighting, solar lights, CFL bulbs and etc.