Mighty Machines: Tremendous Tools

"From the farm to the sawmill to mines deep underground, this collection of Mighty Machines episodes highlight what an important role machines play in keeping our society running smoothly. Out on the farm, the barnyard brigade strives to make hay and keep it dry for the animals. Meanwhile, as trees are transformed into lumber for homes at the sawmill, we travel deep underground to see how salt is mined and carried to the surface so that our food will taste great and those icy winter sidewalks won't be so slippery."