How Does The Earth's Rotation Cause Day And Night: |link|

That spin is the sole reason we have day and night. Let’s get technical for a moment. Earth is a sphere roughly 7,900 miles in diameter. Every 24 hours, it completes one full rotation on its axis—an imaginary line running through the North Pole to the South Pole.

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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. how does the earth's rotation cause day and night

But the sun isn’t actually “rising” or “setting.” The star is standing relatively still. We are the ones moving. That spin is the sole reason we have day and night