Scientific American Frontiers 1993. Actor Alan Alda became the permanent host starting in the fall season of 1993 and continued until the show ended in 2005. So the show was also billed as "Alan Alda in Scientific American Frontiers". Alda's tenure has been notable for his humble and often humorous approach: in one memorable segment, he became car sick while driving an experimental, virtual reality vehicle. In 2005, Alda published his first round of memoirs, "Never Have Your Dog Stuffed: and Other Things I've Learned", published by Random House (); in the book, he recalls his intestines becoming strangulated while on location in
I Know What I Have Learned I Know What I Have Learned I know what I have learned is a Danish fairy tale, collected by Svendt Grundtvig in "Gamle Danske Minder i Folkemunde". Andrew Lang included it in "The Pink Fairy Book". A man's three daughters were all married to trolls. One day he visited the youngest. Her husband knocked pieces from his head, so they could make broth, and gave him a sack of gold. He remembered he had a cow about to calf and left the gold to get back quicker, but a thief stole the gold, and the man stubbornly said that he