What is mid-infrared?

Mid-infrared is like a special kind of light that’s warmer than regular visible light, think of it as the cozy glow from a fire or a lamp on a chilly night.

Imagine you're playing with different kinds of flashlights. The one you usually use shines white light, which we can see clearly. But there's another flashlight that gives off a softer, reddish light, almost like the warmth of a campfire. That’s mid-infrared light. It's not visible to our eyes, but it feels warm when it touches us.

Visible light is what lets us see colors in the world around us. Mid-infrared is just another part of the light spectrum, like different notes in a song, some you can hear, and others you can’t. But you can feel mid-infrared because it carries heat. Scientists use it to study things that are warm or hot, like people, animals, or even stars.

Because mid-infrared light is sensitive to heat, it helps us see things that are not visible in normal light, like hidden objects behind walls, or how a person’s body feels from far away. It's like having a special kind of “heat vision”!