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- Glaciology (3787 bytes)
5: ...ed from the [[Latin]] ''glacies'', meaning ice or frost.
9: ...untains, as in valley glaciers, or moving outward from centers of accumulation, as in [[continental gl...
22: ; [[Ablation]] : Wastage of the glacier through sublimation, ice melting and iceberg [[Ice calving|calving]].
23: ...s of ice through ablation exceeds the annual gain from [[Precipitation (meteorology)|precipitation]].
29: ; [[Fracture]] : Brittle failure (breaking of ice) under... - Meteorology (19082 bytes)
10: ...' goes back to the book ''Meteorologica'' (dating from about [[340 BC]]) by [[Aristotle]], who combine...
14: ...Franklin]]'s kite experiments with [[lightning]]. Franklin was also the first American to keep accurat...
18: ...d]]. These were solved when [[Luke Howard]] and [[Francis Beaufort]] introduced their systems for clas...
20: ...]], introducing the idea of [[front (meteorology)|front]]s, that is, sharply defined boundaries betwee...
26: ...sable tool for studying a wide range of phenomena from forest fires to [[El Ni. - Arsenic (12497 bytes)
143: ...or. Arsenic and some arsenic compounds can also [[sublimation (chemistry)|sublime]] upon heating, converting di...
146: ...nto the [[20th century]], as a [[pesticide]] on [[fruit tree]]s (resulting in neurological damage to t...
148: ... ingestion - directly or indirectly - of wood ash from CCA timber (the lethal human dose is approximat...
161: ...nic poisoning]] were somewhat ill-defined, it was frequently used for [[murder]] until the advent of t...
172: ...groundwater is of natural origin, and is released from the sediment into the groundwater due to the an... - Iodine (11416 bytes)
139: '''Iodine''' (from the Gr. ''Iodes'', meaning "violet"), is a [[ch...
142: ...with [[starch]] solution is characteristic of the free element.
154: ... in a nuclear disaster area. KI prevents the body from absorbing the radioactive iodine produced at th...
160: ...owder was in great demand. Saltpeter was isolated from seaweed washed up on the coasts of [[Normandy]]...
162: ...bstance to a meeting of the Imperial Institute of France. On [[December 6]] Gay-Lussac announced that ... - Mercury (element) (24761 bytes)
177: ...aratuses. Mercury is mostly obtained by reduction from the [[mineral]] [[cinnabar]].
184: ...nd [[cadmium]] and does not displace [[hydrogen]] from [[acid]]s. Common [[oxidation state]]s of this ...
206: ...]], mercury use was thought to prolong life, heal fractures, and maintain generally good health. The [...
208: ...lity to transform mercury into any metal resulted from the essentially mercurial quality of all metals...
210: ... modern [[chemical symbol]] for mercury. It comes from hydrargyrum, a [[Latin]]ized form of the [[Gree... - Phosphorus (11557 bytes)
41: ...widely used in [[explosive material|explosive]]s, friction [[match]]es, [[firework]]s, [[pesticide]]s,...
49: ...ure]] of 1 atm at 170 ?C but burns from impact or frictional heating. A black phosphorus allotrope exi...
65: ...[Hennig Brand]] in [[1669]] through a preparation from [[urine]]. Working in [[Hamburg]], Brand attemp...
67: ..., suicides and accidental [[poison]]ings resulted from its use (An apocryphal tale tells of a woman at...
70: ...]] containing substances, phosphorus is not found free in nature but it is widely distributed in many ...
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