EditorialA Microsoft employee works from home due to coronavirus concerns, in Medina, Wash., March 10, 2020. (Christian Sorensen Hansen/The New York Times)
EditorialModel of a Double Capstan, Model of a double capstan in a wooden frame that represents two decks. Both capstans are for twelve wind trees and have six molars. The lower drum has eight catches in the foot to prevent it from running back. The drums can b...