A Popular Guide to the Heavens
- 300 pages
- 11 hours of reading
Robert Stawell Ball was an Irish astronomer and mathematician dedicated to the popularization of science. His works, written in an accessible style, illuminated the complexities of the cosmos and mathematical principles. Beyond his popular publications, he also engaged in deeper mathematical research, notably his theory of screws.





First published in 1909, this classic science fiction novel tells the story of a man who travels to the moon and falls in love with a lunar princess. With its imaginative plot and romantic themes, Time and Tide remains a beloved work of early sci-fi.
This classic work provides a thorough introduction to the principles of spherical astronomy. It covers the geometry of celestial spheres, the motion of celestial bodies, and the methods of measuring astronomical phenomena. A must-read for anyone interested in the history of science and astronomy.