Publications

Puffs of Air: Communicating by Vacuum

October 1932, London, England, UK --- A scene inside one of London's largest telegraph offices where 50 million telegrams pass every year. The pneumatic pressure tubes are visible which carry messages to and from post offices in the City and the West End. --- Image by © Hulton-Deutsch Collection/CORBIS

“Puffs of Air: Communicating by Vacuum” In John Knechtel, Ed., AIR, Alphabet City #15 (Cambridge: MIT Press, 2010) on pneumatic tubes