periodic time, such a body would have to rotate at 7 x 10 14 revolutions per second.
I wish to thank Messrs. Siemens Bros, and Co. for the loan of the field magnet, which was altered for the purpose of these experiments.
I have pleasure in acknowledging the help I have received from Mr. F. S. Robertson and Messrs. H. A. Skelton, R. M. Wartze, and M. S. Duffitt. Mr. Skelton has spent a great deal of time in the working out of the results. Mr. T. Jones has also rendered valuable assistance.
Table I.
 | A table should appear at this position in the text. See Help:Table for formatting instructions. |
Diameter and length
each 25'4 cm.
Diameter and length each
12-7 x 10 8 cm.
Diameter and length
each O'l cm.
Periodic time.
360 seconds
Periodic time.
Frequency.
179 periods per second.
f
7 x 10 9 years
1 H,
90 4
j-717
I
45
1434
12 x 10~ 6 seconds. . . . j
1-3 x 10-" j
3'5 x 10- n 1
960 years.
3'03 x 10 10 seconds.
1 year.
3'1 x 10" seconds.
1 day.
8'6 x 10 4 seconds.
