Sound : an elementary text-book for schools and colleges (1913)
Capstick, John Walton, 1858- · leaf 77
ircleinto 8 equal parts, and number the points of division 1, 2,3, etc. With 1 as centre draw a circle of \ in. radius, with2 as centre draw a circle of f in. radius, with 3 as centre draw 0. s. 5 66 LONGITUDINAL WAVES [CH. IV a circle of 1 in. radius and so on, at each step increasing theradius by… … Fig. 38 We shall then have a diagram similar to Fig. 38. Put apin through the centre of the card and hold before it another 84-86] LONGITUDINAL WAVES 67 card with a slit cut in it, the slit being in the position shewnby the dotted lines in the figure. If now the card with the circles drawn on it is…
Sound
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
