1. Trappist is an acronym for ‘transiting planets and planetisimals small telescope’, named after a robotic telescope in the Atacama Desert that astronomers initially used to study the star.
  1. The domestic sewing machine, manufactured by Isaac Singer in Boston in 1851 was the first labour-saving device for the home.  The first electric sewing machine was produced by the Singer Manufacturing Company at their plant in Elizabethport, NJ, in 1889.
  1. Historically, a unicorn carriage is one pulled by 3 horses.
  1. There are 32 pieces in a chess game.
  1. Hg stands for the element mercury.