Quote of the day
To solve a problem or to reach a goal, you don't need to know all the answers in advance. But you must have a clear idea of the problem or the goal you want to reach.
Robert Stawell Ball
Born: July 1, 1840
Died: November 25, 1913 (aged 73)
Bio: Sir Robert Stawell Ball was an Irish astronomer who founded the screw theory.
Known for:
- Great Astronomers (1895)
- The story of the heavens (1885)
- A Treatise on the Theory of Screws (1900)
- A popular guide to the heavens (1904)








