Humanity’s understanding of the force of gravity, like other scientific ideas, is something that is always changing. Throughout the course of history, there have been a number of times when we thought that we had all the answers, that we knew everything there was to know. Yet every time that we became too confident in our beliefs, some new discovery would be made or some new theory produced that would completely revolutionize the way we look at this remarkable force.
Hopefully, this account of our evolving understanding of gravity will help you to realize that, as vast as our scientific knowledge may be when compared to years and centuries past, we still don’t have all the answers. There is much more about gravity, and indeed about the very nature of the universe, that is waiting to be discovered.
