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Rømer, Olaus

(Encyclopedia)Rømer, Olaus or Ole ōläˈo͝os, ōˈlə römˈər [key], 1644–1710, Danish astronomer. He is noted for his discovery that light travels at a definite speed and does not move through space instant...

Astrakhan, city, Russia

(Encyclopedia)Astrakhan ăsˈtrəkăn, Rus. äˈstrəkhənyə [key], city (2020 pop. 535,000), capital of Astrakhan region, SE European Russia. A Caspian Sea port on the Volga R...

Georgian Military Road

(Encyclopedia)Georgian Military Road, highway, SE European Russia and Georgia. It is c.135 mi (220 km) long and crosses the Greater Caucasus Mts. Starting from its northern terminus at Vladikavkaz, the road winds u...

Nuristan

(Encyclopedia)Nuristan no͝orĭstănˈ [key] [Persian,=land of light or the enlightened], region on the southern slopes of the Hindu Kush, NE Afghanistan, bordered on the E by Pakistan. Formerly called Kafiristan [...

Orel

(Encyclopedia)Orel əryôlˈ [key], city (1990 pop. 337,000), capital of Orel region, central European Russia, on the Oka River. It is a large railroad junction, an agricultural trade center, and an industrial city...

Buh, river, Ukraine, also known as Southern Buh

(Encyclopedia)Buh or Southern Buh bo͞okh [key], Ukr. Pivdynnyy Buh, river, c.490 mi (790 km) long, rising in the Volhynian-Podolian hills, W Ukraine. The Buh, flowing generally SE into the Black Sea, is navigable ...

Flammarion, Camille

(Encyclopedia)Flammarion, Camille kämēˈyə flämäryôNˈ [key], 1842–1925, French astronomer and author. He served for some years at the Paris Observatory and the Bureau of Longitudes, and in 1883 he set up a...

Picard, Jean

(Encyclopedia)Picard, Jean, 1620–82, French astronomer, noted for having made the first accurate measurement of a degree of the earth's meridian. The figures he established were of great value to Newton in his ca...

Shapley, Harlow

(Encyclopedia)Shapley, Harlow shăpˈlē [key], 1885–1972, American astronomer, b. Nashville, Mo., grad. Univ. of Missouri, 1910, Ph.D. Princeton, 1913. He was astronomer at Mt. Wilson Observatory from 1914 to 19...

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