Letter from Lord Rayleigh to Frederick Lanchester, 13 Nov 1913
13 Nov 1913
Regarding pressure and momentum of sound waves, referring to text of Lanchester’s book “Aerial Flight” (Vol. I.) “Aerodynamics”. [Lord Rayleigh (1842-1919), mathematician and physicist, was, among other honours, President of the Royal Society, 1905, and President of the Advisory Committee on Aeronautics, 1909].