Most people take great care to not scratch the bottom of their CDs and DVDs, but in reality, it’s the top that you should protect. The actual data on an optical disc is stored in an extremely thin layer of aluminum under the label side and, if scratched, it cannot be polished back to a showroom shine like the plastic bottom layer.

Rowan Atkinson, best known as the quirky British comedy personality Mr. Bean, has a Master’s Degree in Electrical Engineering.

EGOT is a distinction in Hollywood that indicates the person has won an Emmy, Grammy, Oscar, and Tony award; the first person to achieve this prestige was composer Richard Rodgers in 1962.