universetoday.com
How We Know Gravity is Not (Just) a Force - Universe Today
When we think of gravity, we typically think of it as a force between masses. When you step on a scale, for example, the number on the scale represents the pull of the Earth’s gravity on your mass, giving you weight. It is easy to imagine the gravitational force of the Sun holding the planets … Continue reading "How We Know Gravity is Not (Just) a Force"