How do the theories and findings of physics relate to human existence?
Is it true that philosophy studies with problems of philosophy, and physics
answers questions not about existence but about physics?
The discipline called "philosophy of science" often aims to answer the question of how our knowledge of the natural world affects humanity. There are several historical examples of major shifts in thought about human nature due to discoveries of physics. For example, novas and comets were once thought to show divine anger or have astrological significance; physics provided a materialistic explanation for them and decreased reliance on the religious hierarchies which interpreted astrological signs. Copernicus' argument that the earth was not at the center of the universe affects the way we think of our own importance. Rather than be the center of the world, we are in an arm of an average galaxy. Quantum mechanics illustrates that, contra naive views of absolute scientific fact, that certain types of knowledge are probabilistic and affected by the observer. On a simpler level, many of the discoveries of physics have been applied, for better or worse, to technological innovation, including nuclear power and the atom bomb.