yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

The Sun is NOT Yellow! #shorts


less than 1m read
·Oct 29, 2024

The sun is yellow, or is it? You're used to seeing a happy yellow circle floating in a blue sky, but that's fake news. If you placed a prism in a sunbeam in space, you'd see that the sun radiates light in every color of the visible spectrum. If these colors were paints mixed together, you'd get black. But with light, mixing them produces white, the true color of sunlight.

So why does it look yellow to us? Let's replace the prism with a slice of Earth's atmosphere. Here, nitrogen and oxygen molecules scatter sunlight in all directions. This makes our sky blue, as the blue light with shorter wavelengths scatters more than red light. If scattering didn't happen, the sky would always be a transparent window to the stars.

But because the sky has taken some of the blue, sunlight appears yellow to us. The effect is strongest at sunrise and sunset when there's more atmosphere between you and the sun, making even red light scatter and dyeing the sky orange. Red light can also be scattered by things like water vapor and soot particles, making ocean sunsets even more amazing.

More Articles

View All
First Look at Jane | National Geographic
Louis Leakey sent me to Gombe because he believed that an understanding of chimpanzees in the wild would help him to better guess how our Stone-Age ancestors may have behaved. It had long been thought that we were the only creatures on earth that used and…
Legal and Accounting Basics for Startups with Kirsty Nathoo and Carolynn Levy (HtSaS 2014: 18)
Christie and Carolyn are going to talk about finance and legal mechanics for startups. This is certainly not the most exciting of the cotton sarees; right? This is probably the cosmos. Thank you very much for coming. Okay, so like Sam said, this lecture …
YouTube vs Grey: A Ballad of Accidental Suspension
‘Twas a Sunday morning when I woke up, happy and ready for the day, when suddenly… [alarm sounding] (as YouTube bot) Your access to YouTube has been suspended. (as Grey) Wha… why? (as YouTube bot) Because of a perceived violation of the terms of servic…
Compare with multiplication examples
This here is a screenshot from this exercise on Khan Academy. It says the number 48 is six times as many as eight. Write this comparison as a multiplication equation. So pause this video and see if you can have a go at that. All right, so it sounds very …
Huge Announcements!
Well team, here we go! Oh, I get to make a huge announcement today, something that I’ve been working on for a very long time. Now I can’t, I actually can’t believe that I’m actually announcing this finally. It’s been months and months and months of work, …
Introducing: Khan Academy Kids!
Hi everyone, Sal here with my three-year-old son Azad, and we’re excited to announce the launch of Khan Academy Kids, which is designed to take students like Azad, ages two to five, to become lifelong learners. Hi friends, welcome to my room! Kids love t…