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 114
there would then be nocolour and therefore no difficulty. We will explainthis fact and illustrate it by experiment in a fewminutes; but first let me say a word or two aboutthe consequences of this new move in the making of JOURNEYING BY TELESCOPE 93 telescopes. They were made with… … W. Herschel at his great Telescope. much more clearly with a wide telescope than witha narrow one, always assuming that the wide one isjust as well made. But it is much harder to makea big wide mirror than a little one, just as it is harderto get 100 runs at cricket than to get ten; the bats-man…
Astronomy -- Juvenile literature
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
