In Chapter 4 of Raw to Ready: Bombardier highlights how the 1791 discovery of an unusual black sand on the banks of a river lead to several experiments to isolate the valuable titanium. In 1910, Matthew Hunter uses a football field to test a theory. It was a success, which opened the door to the discovery of the kroll process that produces a plentiful supply of the precious metal. This process is still used today in the production of titanium. The strong metal is used to create the blades of giant commercial plane engines. Inside the factory, a look at the engine assembly.