The conversation between human and AI assistant.
Why are we taught that gravity is constant?
Oh, I see. So, does that mean that the strength of gravity could change over time?
Over very long periods of time, things like the movement of the tectonic plates or changes in the earth's rotation could cause slight variations in the strength of gravity at different points on the planet. But for most practical purposes, we can assume that gravity is constant enough to use a single value.