See also:

• SPHEROID (Gr. c4aipa-etbis, like a sphere)

SPHEROID (Gr. c4aipa-etbis, like a See also:

• SPHERE (Gr. vclsa?pa, a ball or globe)

sphere)  , a solid resembling, but not identical with, a See also:

• SPHERE (Gr. vclsa?pa, a ball or globe)

sphere in shape . In See also:

• GEOMETRY

geometry; the word is confined to the figures generated by an See also:

• ELLIPSE (adapted from Gr. EXkei 'tc, a deficiency, iXXeirely, to fall behind)

ellipse revolving about a See also:

• DIAMETER (from the Cr. &a, through, µErpov, measure)

diameter . If the See also:

• AXIS (Lat. for " axle ")

axis of revolution be the See also:

• MAJOR
• MAJOR (Lat. for " greater ")
• MAJOR (or MAIR), JOHN (1470-1550)

major axis of the ellipse, the See also:

• SPHEROID (Gr. c4aipa-etbis, like a sphere)

spheroid is " prolate "; if the See also:

• MINOR
• MINOR (Lat. for smaller, lesser)
• MINOR, ROBERT CRANNELL (1839-1904)

minor axis, " oblate "; if any other, " universal." If the generating ellipse has for its See also:

• EQUATION (from Lat. aequatio, aequare, to equalize)

equation x2/See also:

• A2(z)

a2+y2/b2=1, and revolves about the major axis, i.e. the axis of x, the See also:

• VOLUME

volume of the solid generated is Irab2, and its See also:

• SURFACE

surface is 21r1 b2+(able) See also:

• SIN
• SIN (O. Eng. syn: a common Teutonic word, cf. Dutch zonde, Ger. Siinde)

sin-le{, where e denotes the eccentricity . If the See also:

• CURVE (Lat. curvus, bent)

curve revolve about the minor axis, the volume is tra2b, and the surface is a{2a2+ (b2/e) See also:

• LOG (a word of uncertain etymological origin,possibly onomatopoeic; the New English Dictionary rejects the derivation from Norwegian lag, a fallen tree)

log (1 +e) /(I —e) 1 . The figure of the See also:

• EARTH
• EARTH (a word common to Teutonic languages, cf. Ger. Erde, Dutch aarde, Swed. and Dan. jord; outside Teutonic it appears only in the Gr. 'pq'e, on the ground; it has been connected by some etymologists with the Aryan root ar-, to plough, which is seen in
• EARTH, FIGURE OF
• EARTH, FIGURE OF THE

earth is frequently referred to as an oblate spheroid; this, however, is hardly correct, for the See also:

• GEOID (from Gr. yij, the earth)

geoid has three unequal axes . The Cartesian equation to a spheroid assumes the forms x2/a2+(y2+z2)/b2=1, for the prolate, and (x2+z2)/a2+y2/b2=1, for the oblate, the origin being the centre and the co-See also:

• ORDINATE

ordinate axes the axes of the See also:

• ORIGINAL

original ellipse, x2/a?+y2/b2=1, and the See also:

• LINE

line perpendicular to the See also:

• PLANE

plane containing them . In physics, the See also:

• TERM

term " spheroidal See also:

• STATE
• STATE, GREAT OFFICERS OF

state " is given to the following phenomenon . If drops of a liquid be placed on a highly heated surface, for example, the See also:

• TOP (cf. Dan. top, Ger. Topf, also meaning pot)

top of a See also:

• STOVE

stove, the liquid forms a number of tremulous globules which continually circulate internally . There is no visible boiling, although the globule diminishes slowly in See also:

• SIZE

size . The theory of the experiment is that the liquid is surrounded by an elastic envelope of its vapour which acts, as it were, as a See also:

• CUSHION (from O. Fr. coisson, coussin; according to the New English Dict., from Lat. coxa, a hip; others say from Lat. culcita, a quilt)

cushion preventing actual contact of the drop with the See also:

• PLATE

plate . On the formation of a similar protective cushion of vapour depends the See also:

• IMMUNITY (from Lat. immunis, not subject to a munus or public service)

immunity of such experiments as plunging a See also:

• HAND
• HAND (a word common to Teutonic languages; cf. Ger. Hand, Goth. handus)
• HAND, FERDINAND GOTTHELF (1786-185r)

hand into a See also:

• BATH
• BATH, THOMAS THYNNE
• BATH, WILLIAM

bath of molten See also:

• METAL
• METAL (through Fr. from Lat. metallum, mine, quarry, adapted from Gr. µATaXAov, in the same sense, probably connected with ,ueraAAdv, to search after, explore, µeTa, after, aAAos, other)

metal .