(Encyclopedia) pulsar, in astronomy, a neutron star that emits brief, sharp pulses of energy instead of the steady radiation associated with other natural sources. The study of pulsars began when…
(Encyclopedia) Port Arthur, city (1990 pop. 58,724), Jefferson co., SE Tex., on Sabine Lake; inc. 1898. A deepwater port of entry on the Sabine-Neches Canal, it is an extensive oil port, with many…
PINHOLE CAMERAFILM CAMERAMILESTONES OF PHOTOGRAPHYPHOTOGRAPHIC FILMDIGITAL PHOTOGRAPHYFIND OUT MOREA camera is a device that records pictures. It consists of a sealed box that catches the light…
by David Johnson Koreans are believed to have migrated from the Mongolian steppes and that is reflected in the prevalence of meat, which in restaurants is often cooked on miniature grills…
by David Johnson Since it is an island, fish is common in Sri Lanka. Although the majority of people are Buddhist, there are Hindu, Muslim, and Christian minorities, creating diversity in…
(Encyclopedia) West University Place, residential city (1990 pop. 12,920), Harris co., S Tex., completely surrounded by the city of Houston; inc. 1925. Rice Univ. is nearby.
(Encyclopedia)
CE5
Sextant
sextant, instrument for measuring the altitude of the sun or another celestial body; such measurements can then be used to determine the observer's geographical…
(Encyclopedia) gamma radiation, high-energy photons emitted as one of the three types of radiation resulting from natural radioactivity. It is the most energetic form of electromagnetic radiation,…
(Encyclopedia) electric fish, name for various fish that produce electricity by means of organs usually developed from modified muscle tissue. The electric eels of South America are freshwater…
