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Science Express In AP - Video of Coach No.1. Visit wwww.scienceexpressinap.org.in for more detailed information. This Coach Covers :
Why are the laws of nature the way they are?
Why did the world not disperse as light during the Big Bang, instead of forming stable matter?

How did the Universe expand to its current size? What determined its speed? How constant are natural constants? And why do elementary particles have the mass that they do? Such are the questions at the core of modern physics – and at the essence of creation. Human life may never have emerged in a world with just slightly different natural constants.
In the search for answers, physicists are examining the elementary components of the material world and their interactions, the four fundamental forces: the strong interaction that binds quarks and atoms; the weak interaction important in radioactive decay; electromagnetic interaction and gravitation. The latter can still not be described by a closed theory. Physicists are thus ...