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 62
ded the battle.There is one other thing about comets that is in- THE STARTING-POINT, OUR EARTH 41 teresting because it shows there is another forcebesides gravity which affects them. The head ofthe comet feels only the pull of the Sun, which is verystrong when it is near the Sun and very slight… … Various Positions of a Comets Tail. from the Sun. That is due to the fact that besidesgravity that pulls the head towards the Sun, thereis another force away from the Sun; it is as thoughthe Sun was blowing the tail of the comet away fromthe head. Of course there is no actual blowing asone blows…
Astronomy -- Juvenile literature
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
