From Scholar-Errant: A biography of Professor A.W. Bickerton, by R.M. Burdon, Pegasus Press, Christchurch, 1956, quoting an article by Bickerton in the Daily Mail, who was then apparently commenting on a plan by some Russian scientists to be launched to the moon from a large gun, a la Jules Verne's From the Earth to the Moon:
“This foolish idea of shooting at the moon is an example of the absurd length to which vicious specialisation will carry scientists working in thought-tight compartments …. For a projectile entirely to escape the gravitation of the Earth, it needs a velocity of 7 miles a second. The thermal energy of a gramme at this speed is 15180 calories …. The energy of our most violent explosive - nitroglycerine - is less than 1500 calories per grammer. Consequently, even had the explosive nothing to carry, it has only one tenth of the energy to escape the Earth … hence the proposition appears to be basically unsound.”
From Basics of space flight, Ludwik Marian Celnikier, 1993, ISBN 2863321323, quoting "Discouraging Words", Spaceflight, 34, 225 (1992).
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A.W. Bickerton 2
British scientist 1842–1929Related quotes
Quoted in The world of Andrei Sakharov: a Russian physicist's path to freedom (2005) By Gennadiĭ Efimovich Gorelik, Antonina W. Bouis, p. 134.
Source: Longing for the Harmonies: Themes and Variations from Modern Physics (1987), Ch.11 Explosions and Fluourescence (or, Entropy's Revenge)
Address to the United Nations, New York City (September 18, 1959), as reported by The New York Times (September 19, 1959), p. 8. The physicist quoted was eventually found to be William Davidon, associate physicist at Argonne National Laboratory, Lemont, Illinois.
Source: 1960s, Presentation to U.S. Congressional Sub-Committee on World Game (1969), p. 102
as quoted by D. D. Ryutov in [G.I. Budker: reflections & remembrances, by Boris N. Breizman, Springer, 1993, http://books.google.com/books?id=e0bxFrmNtykC&printsec=frontcover#PRA1-PA278,M1, 1-56396-070-2, 278]
The Structure of the Universe: An Introduction to Cosmology (1949)