Rangefinding telemeter

A rangefinding telemeter is a special tool that can help us figure out how far away something is. It does this by sending out a beam of light or sound and then measuring how long it takes for that beam to bounce back. Imagine you're trying to figure out how far away a tree is. You would shine a laser or send out a sound wave towards the tree, and then wait for it to bounce back. The rangefinding telemeter would measure the time it took for the beam to make the round trip, and from that it could calculate the distance to the tree.

Think of it like playing "echo" in a big, empty room. When you shout, you can hear your voice bounce back. The rangefinding telemeter does the same thing, but much faster and with more precise measurements. It's used in all sorts of things, like golf clubs to help you measure the distance to the hole, or in construction to figure out how far away a building is. It's a really handy tool to have when you need to know how far away something is, but your eyes can't quite tell you.