This universe is full of mysteries where most of the things are to be known to mankind. People believe in practical works not theoretical. A child learns by playing and builds up the blocks of a new start. If he were to be kept in a class and taught as the students of Grade 5 or 6, he wouldn’t have learnt anything. In the same way science is a vast subject an amalgamation of several things that exists in this whole world.
There are many theories made by several scientists that are often applied by people in their day-to-day life. Without the practical applications of science we wouldn’t have learned anything. For example: Newton’s third law of motion states that every action has equal and opposite reaction. If we strike a ball on the wall with great force it returns back with the same force. Because of the application of the law we remember it but what about the second law? As it is not applied practically we don’t remember it. Do you remember it or not?
The biggest theory of all time is “the Big Bang Theory “that the scientist made ages ago, about the evolution of the earth. Moreover, the theories of impact those asteroids had when they crashed the earth’s surface. The latest major impact event occurred in Kaali, Estonia about 700 BC. Scientists have even made theories about asteroids that are going to strike earth’s surface in 2012, 2036, 2128, which are just prediction. But the theories made on the asteroid that had stroked earth millions of years ago during the Jurassic time period. To practically learn this theory scientists and experts of various countries had conducted many experiments few of which included the atomic bombing which recreated the explosion as the real one. The other one was conducted in a chamber OF NASA using a hi-tech and high speed gun. The metal ball was shot in the structure made with sand of the place where the asteroid had hit the