Note 29 — Chapter XV
Reading edition
It is obvious that in Fig. 136, 2, a pulse will pass from A to B and back in one-third the time required for it to pass from A to B and back in Fig. 136, 1.
Reading edition
It is obvious that in Fig. 136, 2, a pulse will pass from A to B and back in one-third the time required for it to pass from A to B and back in Fig. 136, 1.