Columbia Encyclopedia

Search results

500 results found

water table

(Encyclopedia)water table, the top zone of soil and rock in which all voids are saturated with water. The level of the water table varies with topography and climate, and depends on the degree to which the groundwa...

periodic table

(Encyclopedia)CE5 periodic table, chart of the elements arranged according to the periodic law discovered by Dmitri I. Mendeleev and revised by Henry G. J. Moseley. In the periodic table the elements are arrange...

Table Mountain

(Encyclopedia)Table Mountain, 3,567 ft (1,087 m) high, Western Cape, South Africa. It overlooks Cape Town and Table Bay. The summit is flat, and the dense white mist that often covers it is called the “tablecloth...

Constellations (table)

(Encyclopedia)Constellations 1 Zodiac constellation. ...

Elementary Particles (table)

(Encyclopedia)Elementary Particles Leptons Quarks1 Gauge Bosons Some Sample Hadrons For each of these particles, except the photon, gluon, and Z-boson, there is an antiparticle with the same mass and op...

Morse Code (table)

(Encyclopedia)Morse Code International Morse Code American Morse CodeThe American Morse differs in the following symbols: ...

Geologic Timescale (table)

(Encyclopedia)Geologic Timescale 1 Not an era but the time preceding the Cambrian. ...

T'ang, Chinese dynasty

(Encyclopedia)T'ang täng [key], dynasty of China that ruled from 618 to 907. It was founded by Li Yuan and his son Li Shih-min, with the aid of Turkish allies. The early strength of the T'ang was built directly up...

Han, Chinese dynasty

(Encyclopedia)Han hän [key], dynasty of China that ruled from 202 b.c. to a.d. 220. Liu Pang, the first Han emperor, had been a farmer, minor village official, and guerrilla fighter under the Ch'in dynasty. During...

Radio Frequencies (table)

(Encyclopedia)Radio Frequencies