В 1781 г. родился физик Дэвид Брюстер

Everyone who knows David Brewster will recall their favorite childhood toy, the kaleidoscope. But before dedicating himself to optics he studied theology at Edinburgh University and became a clergyman. But later, he took interest in physics, became a professor and then principal of his alma mater. During his experiments with light, Brewster noticed that pieces of glass, when placed into a tube with mirrors, create fancy symmetrical patterns, reflected in those mirrors. Brewster called his invention “kaleidoscope,” which means “I look at beautiful images” and patented it. Would you call it a toy? No, the kaleidoscope has been used by architects, jewelers, and decorators.