Poynting, J. H. (John Henry), 1852-1914, Shakespear, Gilbert Arden, ed, Barlow, Guy, joint ed · Cambridge, University Press · leaf 751
Fig. 5. Let us now see how this way of regarding a beam of light leads us toexpect a modification of the pressure when the receiving or the emittingsurface is moving. First,,let us suppose that the receiving surface is moving towards thesource. Let A (Fig. 6 a) be the source. Let B be the receiving… … Fig. 6. moving towards A with velocity u. If B were at rest at 0 it would receivein one second the radiation and the momentum in length CD = V, the velocityof Hght. But when a given wave starts from D, let the surface start from B,and let them meet at the end of a second. Then B has evidently…
Poynting, J. H. (John Henry), 1852-1914 · Physics
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