The conversation between human and AI assistant.
Is it true that each year the earth is getting closer to the sun?
That's good to know. Can you tell me more about tidal forces and how they affect the earth-sun relationship?
Sure. Tidal forces arise because the gravitational forces exerted on one side of an object by another are stronger than those exerted on the opposite side. This causes a distortion, or stretch, in the object, which in turn leads to various effects such as ocean tides, earthquakes and even changes in the length of earth's day.