Oh, there's plenty of hard evidence for gravity. It may not be something we can see and touch, but that doesn't stop us from being able to observe it.
If you do not believe me, take a case of watermelons up to the twentieth floor of a building and drop them out the window one by one.
If you do not believe me, take a case of watermelons up to the twentieth floor of a building and drop them out the window one by one.
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own - Bertrand Russell
