Rotational speed of Earth is 1,000 mph at the equator where it is moving fastest. Other parts of the mass are moving slower.
The entire Earth orbits the Sun at 67,000 mph -- around 67X faster. And note that it is the entire mass of the Earth moving at that speed, not just the equator.
Changing the rotation speed by 1% is a whole lot easier than changing the orbital speed by 1%.
The entire Earth orbits the Sun at 67,000 mph -- around 67X faster. And note that it is the entire mass of the Earth moving at that speed, not just the equator.
Changing the rotation speed by 1% is a whole lot easier than changing the orbital speed by 1%.