@Mden 28 October 2021 more from that month

In the previous post we talked about sound and its speed. Then we started talking about the light, then I told you that I will travel 300,000 km, but as a result of the interruption of travel due to the lack of drivers to drive fuel tanks, I will switch to Plan B. In fact, the sun is 8 light minutes away from the earth, which means that it takes the sun's rays 8 minutes to reach the earth despite the enormous speed of light: 300,000 km / h. And if you know that the act of seeing is actually the brain's analysis of the light reflected from the object we're looking at. That is, the eye practically does not see objects, but rather sees the reflection of light from them. If you turn off the light, you won't see anything. Note that the objects did not move out of place. Now look at the sun. The image of the sun you see now. In fact, it's a picture of the sun from 8 minutes ago. And the fact that the sun is constant in shape and place, you won't feel the difference. Light controls how we see things.