Note 79 — CONVERSATION VIII. ON THE EARTH.
Reading edition
(Pg. 107) By what means can we ascertain the period of a complete revolution of the earth in its orbit, as illustrated by the fixed star E, in fig. 1?
Reading edition
(Pg. 107) By what means can we ascertain the period of a complete revolution of the earth in its orbit, as illustrated by the fixed star E, in fig. 1?