As a kid I had a childrens book with various stories and anecdotes, one of which was entitled "The Wizard of Menlow Park". It was a potted history of Edison. It fascinated me and I must have read it so many times I could recite the article from memory. I wondered how a man could invent so many things in his lifetime. My favourite one was the paper shirt that never required washing. It was multi layered,and as one layer got dirty,the wearer would just peel it away revealing a clean layer underneath. Happy birthday to you,Happy birthday to you..............