A Popham panel, or T-signalling panel, was a means of ground-to-air communication, in Morse code, developed during the First World War, before the introduction...

Air Chief Marshal Sir Henry Robert Moore Brooke-Popham, GCVO, KCB, CMG, DSO, AFC (18 September 1878 – 20 October 1953) was a senior commander in the Royal...

World War I planes were not outfitted with radios, so soldiers used large panel cut outs to distinguish friendly forces. These cut outs could also be used...

mission from Kohat to the Legation with the intention of dropping a Popham panel which would enable ground-to-air signalling. However, before they could...

Popham was born on August 4, 1939, in Charleston, South Carolina, to Louisa McCord (Stoney) Popham and William Sherbrooke Popham. William S. Popham was...

Leonardo, Vol. 29, No. 3 (1996), pp. 197–200, The MIT Press, JSTOR A.E. Popham (1946). The Drawings of Leonardo da Vinci. Jonathan Cape. ISBN 978-0-224-60462-8...

referring to the installation of a simpler telegraph invented by Sir Home Popham.[citation needed] Semaphore telegraphs are also called, "Chappe telegraphs"...

1967, p. 103. Wasserman 1975, p. 150. Ottino della Chiesa 1967, p. 109. Popham, A. E. (1946). The Drawings of Leonardo da Vinci. Ottino della Chiesa 1967...

portrait Mona Lisa, or La Gioconda (La Joconde), painted in oil on a poplar panel by Leonardo da Vinci, has been the subject of a considerable deal of speculation...

possessing "a Roman resolution". On 6 November, the Lord Chief Justice, Sir John Popham (a man with a deep-seated hatred of Catholics) questioned Rookwood's servants...