@Rainmaker1973 It's not about concept. Ancient Greeks had knowledge about Gravity, magnetism, screw, evolution and many more. But the thing is to apply the concepts and develop something from it. Newton's laws helped to in Industrial revolution.
@imransiddique89 Bilkul vaise he jaise Agar gadhe ke sing hote to vo unicorn hota... India mae kehte hai k "na nao mann tel hoga or na radha machegi".. Jo hona he nhi hai uske liye kuj bhi imagine krlo.Sochne ke Kon se paise lagte hai.