EditorialKatie Carolan, a telescope demonstrator, poses with the 12-inch Zeiss refracting telescope at the Griffith Observatory in Los Angeles, July 27, 2022. (Gabriella Angotti-Jones/The New York Times)
EditorialA walking bridge on Stage 13 of the Juliana Trail in northwest Slovenia?s Julian Alps, July 29, 2021, where light refracting off limestone particles in the water lend an iridescence to streams and rivers. (Marcus Westberg/The New York Times)
EditorialEquatorial instrument (refracting telescope) made by Jesse Ramsden for Sir. George Shuckburgh. Copperplate engraving by Sidney Hall after a drawing by J. Farey Jr. from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, ...