Had chatgpt do it for you
TLDR Version:
A LiDAR scanner is a tool that uses lasers to make a picture of things far away by bouncing the lasers off of them and measuring how long it takes for them to come back. Scientists and engineers use it to learn more about the world around us.
Long version:
Hello there! Do you like playing with toys that go "beep" and "boop"? Well, a LiDAR scanner is kind of like a toy that helps us see things far away!
A LiDAR scanner is a special device that sends out a bunch of little laser beams (kind of like tiny flashlights) and they bounce off of things like trees, buildings, and even people.
When the laser beams bounce back to the LiDAR scanner, it measures how long it took for the beam to go out and come back. That's called "time of flight" - like how long it takes you to run to one end of a room and then back to where you started.
The LiDAR scanner then uses all of that information to create a really detailed 3D picture of everything it can "see" with its laser beams. It's kind of like taking a really fancy picture, but instead of using a camera, we're using lasers!
Scientists and engineers use LiDAR scanners to study all sorts of things like mapping the terrain of the Earth or measuring how much ice is melting in the Arctic. So, you can think of a LiDAR scanner as a really cool tool that helps us learn more about the world around us!