No one believed when Copernicus proposed that the Sun was the centre of the solar system and the Earth and other planets revolved around it or when Galileo proposed the principle of the pendulum and the law of falling bodies. They were demonised and persecuted because they said something which was against the popular philosophical religious discourse at that time. Science, which in broad terms means inquisitiveness, rationality, urge to discover and invent, to find the truth and not to believe in what has been told even for centuries without evidence. Discussion and debate are the means to reach a conclusion and not imposition or aggression. Therefore many a times there has been contradiction, even conflict between those who believe in the philosophy of divinity & eternal and those who look for the reasons about the happenings in nature.