Members inducted into the U.S. National Inventors Hall of Fame in 2010 included Yvonne Brill, whose electrothermal hydrazine thruster keeps satellites in space orbit, as well as Arthur Fry and Steven Silver, who created sticky notes (Fry, the concept; Silver, the glue). “Note: It took one woman to invent a rocket thruster,” wrote a Washington Post reporter about the induction ceremony, “and two men to invent Post-its.”