Why does the earth rotate so fast, but we humans can’t feel dizziness?

The Earth rotates from west to east around its axis of rotation, with an average angular velocity of 7.292×10^(-5) rad/second, and a linear velocity of rotation at the Earth’s equator of 466 meters/second. The average linear speed of the Earth's revolution is 940 million kilometers per year, or 29.8 kilometers per second. The earth's rotation and revolution are so fast, why don't people feel dizzy?

It’s actually very simple. We know that it takes 24 hours for the earth to rotate once. Think about it, when a person stands still and turns around in 24 hours, how slow will it be? Unless you fast forward. In the same way, you can't see the minute hand on your watch move. It's too slow for human perception. But on a big enough clock, if you get closer, you can see the minute hand moving. Another example is riding a merry-go-round. You can feel it spinning. But slow it down 60 times and your body won't feel its rotation. Of course, the numbers associated with its angular velocity are high compared to what we usually think of as a frame of reference, but it's still only equivalent to one rotation per day.

Moreover, many of the vantage points from which we observe the Earth are in orbit and therefore cannot be used as stationary reference points to observe the rotation. Some satellites travel at the same speed as the Earth rotates. This makes it look like it's hovering in the same place, or that the Earth isn't rotating. In low orbit, although you are orbiting the Earth very fast, you don't feel it. Astronauts on the International Space Station literally see the Earth spinning beneath their feet. But that's because they're circling it. If you looked at the Earth from the Moon for several hours, you would see it slowly rotating. If you're patient enough, you'll notice that it takes more than 24 hours to complete a spin. The moon rotates in the same direction because the earth's direction is the same.

So in space, everything is moving, so when you talk about motion, you have to give a reference point. "The Earth rotates" is an incomplete sentence. It lacks "from the sun's perspective". In the context of the solar system, the sun is the only stationary thing. If you want to orbit at a lower altitude than geostationary orbit (as most satellites, including the International Space Station), you need to orbit faster than the Earth spins. You can choose a higher altitude than a geostationary satellite, which puts you in an orbit slower than the Earth's rotation, allowing you to see the Earth spin.

So if you want to notice the Earth's rotation in a video, you need to be at least above geostationary orbit. If you go higher, the Earth is spinning faster than you are relative to the surface, which means you start to see rotation. The higher you go, the faster the Earth appears to spin.