And Night Updated — How Does The Earth's Rotation Cause Day

But the sun isn’t actually “rising” or “setting.” The star is standing relatively still. We are the ones moving.

But because the atmosphere, the oceans, and everything on the surface—including you—are spinning along at the same speed, you feel absolutely nothing. No wind in your hair. No dizziness. Just the silent, steady turn of the world. Now, picture a flashlight shining on a baseball in a dark room. One half glows; the other half remains inky black. Earth works the same way, with the sun as that flashlight. how does the earth's rotation cause day and night

Welcome to the science of the cosmic spindle: Earth’s rotation. For most of human history, it was perfectly reasonable to believe the sun revolved around us. After all, from our anchored perspective, it looks like a golden chariot crossing a dome. But in the 16th century, Nicolaus Copernicus flipped the script. The Earth, he argued, is not the center of the universe—it’s a spinning ball of rock and water hurtling through space. But the sun isn’t actually “rising” or “setting