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 37
otmerely looking at the starsand planets, but measur-ing their distances apart,or something else that canbe measured. Tycho Brahe was also animated bythis devotion to measurement, otherwise Keplerwould not have been able to use his work as he did.By use of it he found three great laws of… … A Sextant used byTycho Brahe. THE STARTING-POINT, OUR EARTH 17 — Keplers Laws. The first is that the planetsmove round the Sun in ellipses. You can easilydraw an ellipse for yourself with two drawing-pinsand a loop of string. Fix the pins in a drawing-
Astronomy -- Juvenile literature
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
