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interstellar matter

(Encyclopedia)interstellar matter, matter in a galaxy between the stars, known also as the interstellar medium. The interstellar gas, which constitutes about 99% of the interstellar matter, consists mostly of hyd...

Haber, Fritz

(Encyclopedia)Haber, Fritz häˈbər [key], 1868–1934, German chemist. He was a professor of physical chemistry at Karlsruhe and became director of the Kaiser Wilhelm Institute at Dahlem in 1911. During World War...

Moissan, Henri Ferdinand Frederick

(Encyclopedia)Moissan, Henri Ferdinand Frederick, 1852–1907, French chemist, Ph.D. École Pratique des Haute Études, Paris, 1880. Moissan was a professor at the School of Pharmacy in Paris (1886–1900) and at t...

mercuric chloride

(Encyclopedia)mercuric chloride or mercury (II) chloride, chemical compound, HgCl2, a white powder of colorless rhombohedral crystals, somewhat soluble in water. It is also called bichloride of mercury or corrosive...

New Iberia

(Encyclopedia)New Iberia, city (1990 pop. 31,828), seat of Iberia parish, S La., on Bayou Teche, which is connected to the Intracoastal Waterway by a canal; inc. 1836. It has printing and publishing, and its manufa...

Mattei, Enrico

(Encyclopedia)Mattei, Enrico ānrēˈkō mät-tāˈ [key], 1906–62, Italian public administrator. After World War II he was given the task of dismantling the Italian Petroleum Agency, a Fascist state enterprise. ...

Khalifa bin Hamad al-Thani

(Encyclopedia)Khalifa bin Hamad al-Thani, 1932–2016, emir of Qatar (1972–95). Khalifa was the son of Hamad bin Abdullah al-Thani, the second emir's heir apparent, but Hamad died (1948) before the emir. During t...

King of Prussia

(Encyclopedia)King of Prussia, industrialized suburban area (1990 pop. 18,406), Montgomery co., SE Pa. It has glass and steel fabricating, food processing, printing and publishing, and varied manufacturing (textile...

Thibodaux

(Encyclopedia)Thibodaux tĭbˈədō [key], city (1990 pop. 14,035), seat of Lafourche parish, SE La., on Bayou Lafourche; inc. 1838. It is the commercial center of an oil, gas, sugarcane, and farm area in bayou cou...

Yarmouth, town, England

(Encyclopedia)Yarmouth. 1 Town, Isle of Wight, S England. It is a small port and resort. The castle there was built by Henry VIII. 2 Officially Great Yarmouth, city (1991 pop. 54,777) and district, Norfolk, E Engla...

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