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The demonstration that no possible combination of known substances, known forms of machinery and known forms of force, can be united in a practical machine by which man shall fly long distances through the air, seems to the writer as complete as it is possible for the demonstration of any physical fact to be. βSimon Newcomb (1906) The energy produced by the breaking down of the atom is a very poor kind of thing. Anyone who expects a source of power from transformation of these atoms is talking moonshine. βSir Ernest Rutherford (1933) Inside was a large, shadowy hall, in which bulked a row of tall, square blocks of apparatus. They were, obviously, televisor instruments. Each had a square screen, a microphone grating, and beneath that a panel of control switches, pointer dials, and other less identifiable instruments. Kenniston found and opened a service panel in the back of one. Brief examination of the tangled apparatus inside discouraged him badly. βThey were televisor communication instruments, yes. But the principles on which they worked are baffling. They didnβt even use vacuum tubesβtheyβd apparently got beyond the vacuum tube.β βEdmond Hamilton, The City at Worldβs End (1951)
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J. Storrs Hall (Where Is My Flying Car?: A Memoir of Future Past)