ELI5: Explain Like I'm 5

Stone picker

Imagine you are playing with Lego blocks and you accidentally dump them all over the floor. Now you want to clean them up, but it would take a long time to pick them all up by hand.

A stone picker is like a special machine that helps pick up rocks and stones from the ground. It has big wheels and long metal spikes that stick out from the bottom. When the machine drives over the rocks and stones, the spikes grab them and lift them up into a container on the back of the machine.

It's like a big monster that eats rocks and spits them out into a bucket! This machine saves people a lot of time and effort, especially when they have a big area to clean up.