This is a prove that this man didn't know anything about physics neither human behaviour, all his "best inventions" has been stolen from employees or another less known people. In the best cases Edison "invented" a thing through trial and error tests... very scientific! having money, could give you the luxury

Come on old man! your best invention was your non falling chair...uh no, the rocking chair existed from long ago before and is far better that your solution... well I could say that your best invention was the electric chair, but no, I prefer remember that is the invention that describes you better.

Edison, the pathetic man honored by pathetic people, but the history is written by the winners, in this case I prefer to honor another millonaire more humanitarian.