Perhaps one of the most exciting projects Turing took on during his lifetime was deciphering the movements of German ships during battle while working for the Allies in World War II. Helping crack these codes landed him an award from the British government. You can learn more about his life here.
Turing relied on physics, philosophy, and lots of math to help him in his line of work. His love for these subjects early on helped make him successful. Here's a video we love from Professor Ed Burger that re-ignites our passion for math every time we see it. It's called "Finding Limits Graphically."