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
Making objective summaries of literary texts | Reading | Khan Academy
[David] Hello readers, let’s talk about summarizing stories. This is a useful skill for life. I’ve found myself describing the plots of movies, TV shows, and books to my friends, my coworkers, my family, and it’s also very useful in writing. Understanding…
Fishing Tips: How to Troll a Mark | Wicked Tuna: Outer Banks
Tuna and that market you saw right there is, in fact, a giant bluefin tuna. We’re actually trolling right now; we’re down to the Outer Banks, and we’re fishing with ballyhoos and a green stick deployed. We’ve been marking fish radically throughout the da…
For parents: Setting a daily learning schedule for elementary school students
All right, hi everyone! Thank you so much for joining our parent webinar on how to create a schedule for your third through fifth-grade student, as well as how you can use Khan Academy resources and tools to support your child’s learning at home. So you c…
Worked example: separable differential equation (with taking exp of both sides) | Khan Academy
What we’re going to do in this video is see if we can solve the differential equation: the derivative of y with respect to x is equal to x times y. Pause this video and see if you can find a general solution here. So, the first thing that my brain likes …
Predatory Shark Attacks | When Sharks Attack
When a shark bites a human, they never get the same taste, let’s say, as they would by biting a fish. So generally, they will release us and swim away. These incidents were totally different. The shark came in, attacked the victim, and came back and attac…
Getting a sense of meters and centimeters
In this video I’m going to talk about a unit of length known as the meter, which you might have heard of before. It’s really probably the most used unit of length in the world. So the natural question is: how long is a meter? Well, one way to get a rough…