Hey there kiddo! Do you know what light is? It's like a wave that we can see! But did you know that light also gives us heat? Yup, it can warm up things it shines on, just like the sun can warm up your face.
Now, back in the day, some really smart people wanted to know more about how light and heat worked together. So they made this thing called the Rayleigh-Jeans Law. It's like a special rule that helps us figure out how much heat we can get from light.
The rule says that the amount of heat we get from light depends on how hot the light is, and also on its color. You know how some light is red, and some is blue? Well, the color of the light affects how much heat we can get from it.
Now, the Rayleigh-Jeans Law isn't used as much anymore, because we have better ways to figure out how much heat we can get from light. But it was really important for scientists to learn about light and heat, and it helped them make new discoveries.
So there you have it, kiddo! The Rayleigh-Jeans Law is a special rule that helps us figure out how much heat we can get from light, based on its temperature and color. Pretty cool, right?