Robison's Manual of radio telegraphy and telephony for the use of naval electricians (1918)
Robison, S. S. (Samuel Shelburne), b. 1867, United States Naval Institute, Todd, David Wooster, Hooper, Stanford Caldwell · Annapolis, Md. : The United States Naval Institute · leaf 52
d the same distance in the opposite directionwith the reflected wave; the result is that it does not move at all.These points are found along the rope one-half wave length apart; atall other points the rope moves or vibrates in the resultant directionof the direct and reflected wave impulse, and… … J^ V^fVC LEMSTM 3 jt WAVC LtN«TH — -4*-!^ WAVE LWeHHj Fig. 18c. Stationar}^ ether waves can be set up around conducting wires by suit-ably timed electrical impulses applied to the ends of the wires. 69. It will be observed that the point of support of the rope, where itcan not move, must, in every…
