Millimeter wave scanner

Hello little one! Have you ever seen a scanner at the airport or hospital? It's like a machine that takes a picture of your insides, but instead of using light, it uses special waves called "millimeter waves."

These waves are very, very tiny - much smaller than even the tiniest speck of dust you might see. They travel through the air and can pass through some materials, like clothing, but not through others, like metal or plastic.

So when you walk through a millimeter wave scanner, it sends out these waves and they bounce off of you and your clothes. The scanner can detect any objects that might be hidden under your clothes, like weapons or other dangerous things.

But don't worry - the scanner doesn't take a real picture of your body, like a camera. Instead, it creates a special image that shows exactly where any hidden objects might be. That way, the security people can keep everyone safe without actually seeing your naked body.

And that's what a millimeter wave scanner does! It protects people from danger by using special waves to detect hidden objects without showing anyone's private parts. Cool, huh?