ENERGY:

             The word energy was new until mid 1800s. The people thought-the crackling of static electricity, or the blowing of the wind were all related things. Michael Faraday was the one who changed this idea. He was only a book binder, but kept reading all the interesting books that came to him for binding. He once heard Sir Humphry Davy’s lecture got inspired and wrote down everything he understood from that lecture bound it as a very nice book and sent it to Sir Davy. He was then appointed the assistant of Sir Davy.

              After a few years there was an extraordinary finding from Denmark, that when the current in an electric wire is switched on a magnetic compass placed near the wire shows some deflection. Till this time both electricity and magnetism where two different unrelated forces. Nobody was ready to believe this and then Faraday was asked to work on it. In the late summer of 1821 the discovery of the century was made. Thus, the idea that not only electricity and magnetism but every form of energy could be related had begun. This slowly brought the concept of conservation of energy.

               The energy concept that Faraday helped to create is an extraordinary vision. It is like God had created the universe and put some amount of energy in it. He created planets, stars that grow and explode, created civilization that had battles and everything getting destroyed. All the living people could see all the different kinds of energy around them. Though some amount of energy is lost due to the destruction, the amount of energy God had first put in the universe remained the same. Not even one millionth of the energy was lost. Thus, the concept that “Energy can neither be created nor destroyed but changes from one form to another” was clear.