Nobel laureate Charles Hard Townes's work paved the way for everything from barcode scanners to Star Wars. He died this week at 99.
Between the Flash Gordon radio serials and Star Wars, one man turned the lasers of science fiction into science fact. Charles Hard Townes, inventor of the laser, passed away on Tuesday at the age of 99. As The New York Times succinctly explains, Townes's invention made it possible "to play CDs, scan prices at the supermarket, measure time precisely, survey planets and galaxies, and even witness the birth of stars."