Wien's displacement law

Okay kiddo, have you ever seen a heated object like a stove or a campfire? Do you notice how it gets really hot and then it starts glowing?

Well, everything that gets hot starts to emit light, and it turns out that every object emits a special type of light that is related to its temperature.

The color of the light that's emitted changes based on how hot the object is. When something is really hot, like the sun, it emits a lot of blue light, while something like a candle or a light bulb, which is not as hot, emits more yellow or orange light.

Wilhelm Wien, a scientist, found out that there is a relationship between the color of light an object emits and the temperature of the object itself. He discovered that the hotter an object, the more blue and 'violet' colors it emits, while cooler objects will emit more 'red' or orange colors.

Wien figured out that there is a special wavelength of light that is most commonly emitted depending on the temperature of an object. He made a formula called Wien's Displacement Law that tells us the exact wavelength of light that an object is most likely to give off based on its temperature.

So, in other words, Wien's Displacement Law helps us understand how hot something is just by looking at the color of the light it emits. Pretty cool, huh?