Ocupation: Astronomer
Life: March 12, 1835 - July 11, 1909
Birthday: March 12
Death: July 11
Ten decimal places of π are sufficient to give the circumference of the earth to a fraction of an inch, and thirty decimal places would give the circumference of the visible universe to a quantity imperceptible to the most powerful microscope.
topic: Powerful, Giving, Earth, Decimals