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microwave

(Encyclopedia)microwave, electromagnetic wave having a frequency range from 1,000 megahertz (MHz) to 300,000 MHz, corresponding to a wavelength range from 300 mm (about 12 in.) to 1 mm (about 0.04 in.). Like light ...

Nyamuragira

(Encyclopedia)Nyamuragira or Nyamulagira, active volcano (11,033 ft/3,058 m), S Virunga range, in E Congo (Kinshasa) near the Rwanda border, N of Lake Kivu and 15 mi (25 km) N of Goma, in S Virunga National Park. A...

Kolyma

(Encyclopedia)Kolyma kŏlĭmäˈ, kōlēˈmə, Rus. kəlĭˈmə [key], river, c.1,500 mi (2,410 km) long, rising in several headstreams in the Kolyma and Cherskogo ranges, Russian Far East. It flows generally N to ...

Ida, Mount

(Encyclopedia)Ida, Mount īˈdə [key], Gr. Ídhi, 8,058 ft (2,456 m) high, central Crete, Greece; the highest mountain on Crete. ...

guided missile

(Encyclopedia)guided missile, self-propelled, unmanned space or air vehicle carrying an explosive warhead. Its path can be adjusted during flight, either by automatic self-contained controls or remote human control...

Hale Observatories

(Encyclopedia)Hale Observatories: see Mount Wilson Observatory; Palomar Mountain. ...

Banff National Park

(Encyclopedia)Banff National Park, 2,564 sq mi (6,641 sq km), W Alta., Canada, in the Rocky Mts.; est. 1885. Noted for its mountain scenery and mineral springs, Canada's oldest national park is a year-round resort ...

Rantekombola

(Encyclopedia)Rantekombola ränˌtəkŏmˈbələ [key], mountain, 11,335 ft (3,455 m) high, on the southwest peninsula of Sulawesi island, Indonesia. It is the island's highest point. ...

Tajumulco

(Encyclopedia)Tajumulco täho͞omo͞olˈkō [key], inactive volcano, 13,816 ft (4,211 m) high, W Guatemala. It is the highest mountain in Central America. ...

Vignemale

(Encyclopedia)Vignemale vēnyəmälˈ [key], mountain, 10,820 ft (3,298 m) high, S France, on the Franco-Spanish border. It is the highest peak in the French Pyrenees. ...