ATMOSPHERIC; ATMOSPHERICAL a.
e exerted by the atmosphere, not merely downwards, but in every direction. In amounts to about 14.7 Ibs. on each square inch. -- Atmospheric railway, one in which pneumatic power, obtained from compressed air or the creation of a vacuum, is the propelling force. -- Atmospheric tides. See under Tide.…
AUTOMOBILE n.
ha, etc.), steam engines, or electric motors. The power of the driving motor varies from about 4 to 50 H. P. for ordinary vehicles, ranging from the run-about to the touring car, up to as high as 200 H. P. for specially built racing cars. Automobiles are also commonly, and generally in British usage, called motor cars.…
AUTUMN n.
fall." Astronomically, it begins in the northern temperate zone at the autumnal equinox, about September 23, and ends at the winter solstice, about December 23; but in popular language, autumn, in America, comprises September, October, and November.
AXIS n.
es in which the coördinate planes intersect each other. -- Axis of a balance, that line about which it turns. -- Axis of oscillation, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. -- Axis of polarization, the central line around which the…
BABISM; BABIISM n.
The doctrine of a modern religious pantheistical sect in Persia, which was founded, about 1844, by Mirza Ali Mohammed ibn Rabhik (1820 -- 1850), who assumed the title of Bab-ed-Din (Per., Gate of the Faith). Babism is a mixture of Mohammedan, Christian, Jewish, and Parsi elements. This doctrine forbids concubinage and…