A voyage in space; a course of six lectures "adapted to a juvenile auditory" delivered at the Royal Institution at Xmas 1913 (1915)
Turner, Herbert Hall, 1861-1930 · London Society for Promoting Christian Knowledge · leaf 140
sily may have cost ! Now we can return to the way of working a bigtelescope. One of the most recent modern im-provements is to attach the clockwork, not to thetelescope itself, but to a mirror which reflects the JOURNEYING BY TELESCOPE 119 light into it. The mirror is in this case a flat mirror,not… … A Coelostat being prepared at Oxford for theEclipse Expedition of 1896. now be firmly fixed : the mirror is turned aboutby the clockwork so as to send the light always intothe fixed telescope. A mirror so arranged is calleda Coelostat, which means sky standing still :and it is an actual fact that…
Astronomy -- Juvenile literature
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
