Biography Category
1819–92, English astronomer, grad. St. John’s College, Cambridge, 1843. By mathematical calculation based on irregularities in the motion of Uranu...
1825–65, American astronomer, b. near Boston, grad. Harvard, 1845. He became the assistant of his father, William Cranch Bond, and in 1859 succeeded...
(ôt l´ k s) (KEY) , fl. 4th cent. B.C., astronomer and mathematician of Pitane in Aeolis. Of his two extant works, that on the revolving sphere is s...
town (1991 pop. 17,964), county seat of Sligo, N Republic of Ireland, at the mouth of the Garavogue River on Sligo Bay. It is a seaport and fishing ce...
(j vän´n s gänt ´n ) (KEY) , 1858–99, Italian painter, b. in the Tyrol. A herder in his youth, he is known for his portrayal of Alpine peasant ...
advertising medium in which aircraft spell out trade names and sales slogans in the sky by means of the controlled emission of thick smoke. The techni...