|
Edward Emerson Barnard
Edward Emerson Barnard 1857-1923, American astronomer, b. Nashville, Tenn., grad. Vanderbilt Univ., 1887. From 1887 to 1895 he was astronomer at Lick Observatory in California, and from 1895 he was professor of practical astronomy at the Univ. of Chicago and astronomer at Yerkes Observatory. The di...
Read more
|
|
George Washington Hough
George Washington Hough , 1836-1909, American astronomer, b. Montgomery co., N.Y., grad. Union College, 1856. He discovered 627 double stars and made systematic studies of the surface of Jupiter. Many instruments for use in astronomy, meteorology, and physics were designed and constructed by him. Fr...
Read more
|
|
e-commerce
e-commerce commerce conducted over the Internet , most often via the World Wide Web . E-commerce can apply to purchases made through the Web or to business-to-business activities such as inventory transfers. A customer can order items from a vendor's Web site, paying with a credit card (the cus...
Read more
|
|
Lorenz Milton Hart
Lorenz Milton Hart 1895-1943, American lyricist, b. New York City, studied at Columbia. Hart began collaborating with Richard Rodgers in 1919; their initial success was The Garrick Gaieties (1925). Thereafter, the team of Rodgers and Hart produced such popular musicals as Connecticut Yankee (...
Read more
|
|
ring
ring in astronomy, relatively thin band of rocks and dust and ice particles that orbit around a planet in the planet's equatorial plane. All four of the giant planets in the solar system— Jupiter , Saturn , Uranus , and Neptune — have rings, although only those of Saturn are easily v...
Read more
|
|
Saturn
Saturn in astronomy, 6th planet from the sun.
Astronomical and Physical Characteristics of Saturn
Saturn's orbit lies between those of Jupiter and Uranus; its mean distance from the sun is c.886 million mi (1.43 billion km), almost twice that of Jupiter, and its period of revolution is ab...
Read more
|
|
Adrastea
Adrastea , in astronomy, one of the 39 known moons, or natural satellites, of Jupiter .
...
Read more
|
|
Amalthea
Amalthea , in astronomy, one of the 39 known moons, or natural satellites, of Jupiter .
...
Read more
|
|
Ananke
Ananke , in astronomy, one of the 39 known moons, or natural satellites, of Jupiter .
...
Read more
|
|
Carme
Carme , in astronomy, one of the 39 known moons, or natural satellites, of Jupiter .
...
Read more
|