SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/aero-sun-heats-equator-more

Why does the equator get more heat from the Sun than the poles?

Earth's curved surface receives more direct sunlight near the equator.

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  1. The equator is closer to the Sun
  2. The poles are always farther from the Sun
  3. Sunlight hits it more directly on the curved Earth ✔

Why: Earth is curved. Near the equator sunlight strikes more directly, concentrating energy over a smaller area. Near the poles, sunlight arrives at a lower angle and spreads over a larger area.

Huh, didn't know that: This uneven heating is what sets the air in motion and makes wind.

The dad joke
Why did the equator always win at tag? It was the hottest spot on the team.
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References

Answer: Sunlight hits it more directly on the curved Earth. Earth is curved. Near the equator sunlight strikes more directly, concentrating energy over a smaller area. Near the poles, sunlight arrives at a lower angle and spreads over a larger area.

  1. NASA HEAT: The Sun Touches Everything assets.science.nasa.gov/content/dam/science/hpd/heat/heat-pdfs/hby-and-math-slide-decks/HBY%20and%20Math%203_%20The%20Sun%20Touches%20Everything.pdf?emrc=692410510618f
    Near equator, solar rays are mostly vertical to the surface, so sunlight intensity is higher.
    Checked 2026-10-10.

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