Lisa's Date with Density a child from Josh Weinstein's school days who everyday would get onto the bus with a piece of toast, which had Vaseline on it. A majority of the story is a reference to the film "Rebel Without a Cause". Lisa remarks that Nelson is "like a riddle wrapped in an enigma wrapped in a vest", a reference to "a riddle wrapped in a mystery inside an enigma"; this was Winston Churchill's opinion of Russia at the outbreak of the World War II. In its original broadcast, "Lisa's Date with Density" finished 63rd in ratings for the week of December 9–15,
John Paul Riddle school grew rapidly in 1928 and 1929, until the Embry-Riddle Company (now the Embry-Riddle Aviation Corporation) was merged with the Aviation Corporation (AVCO) of Delaware. AVCO phased out the Embry-Riddle Flying School in the fall of 1930. Shortly after, AVCO became American Airways (the predecessor of American Airlines), and the Embry-Riddle Company was gone. In 1939, Riddle was ready to get back into the business of training pilots. He contacted Embry, who had no interest in reentering a partnership with Riddle. Riddle, now living in Miami, Florida, found a partner in John G. McKay and his wife, Isabel. Keeping the