Complex sentence: Will B. Jamison, a Pennsylvania Mining Engineer, read about the proposed foam in 1952, requested more information about the idea, and proceeded to work with the US Bureau of Mines on the idea, testing 400 formulas until a suitable compound was found.
Split into simpler sentences: Will B. Jamison, a Pennsylvania Mining Engineer, read about the proposed foam in 1952, requested more information about the idea. He proceeded to work with the US Bureau of Mines on the idea, testing 400 formulas until a suitable compound was found.