This 1930s educational film explores the natural landscapes, geological formations, and agricultural practices of the time. It features scenes of farmers tilling soil, majestic mountain roads ...

You can read the full thread here. Dwayne “The Metamorphic Rock” Johnson can be seen next in Jungle Cruise, which is hitting theaters on July 24th.

Rocks turn metamorphic when they are subjected to very high heat and pressure. This alters the chemical and structural makeup of the minerals within the rock, changing it into a new metamorphic rock.

In the case of the second two rock types, this all takes a whole lot of time. So you may not believe it when you read that a team of researchers have discovered in Cumbria, England, rock that is ...