Stanisław Ulam was a great mathematician. Off topic, but I got the movie made from his book Adventures of a Mathematician from my local library and it was excel

Stanisław Ulam was a great mathematician. Off topic, but I got the movie made from his book Adventures of a Mathematician from my local library and it was excellent. Some personal history: Ulam was a good friend of my Dad and when I was a teenager (long time ago!) we rented his house for a summer while he was traveling and our family needed to be Bolder Colorado for some work my Dad was doing. I asked my Dad about Ulam last year and he started to laugh a bit and told me that Ulam used to flirt with my Mom, in a respectful way. Anyway, watch the movie Adventures of a Mathematition - excellent!