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64:, when rain falling in air slightly below freezing slowly accumulates as numerous small icicles hanging from twigs, leaves, wires, etc. Thirdly, icicles can form wherever water seeps out of or drips off vertical surfaces such as road cuts or cliffs. Under some conditions these can slowly form the "frozen waterfalls" favored by
75:
Icicles elongate by the growth of ice as a tube into the pendant drop. The wall of this ice tube is about 0.1 mm (0.004 in) and the width 5 mm (0.2 in). As a result of this growth process, the interior of a growing icicle is liquid water. The growth of an icicle both in length and
71:
Icicles form on surfaces which might have a smooth and straight, or irregular shape, which in turn influences the shape of an icicle. Another influence is melting water, which might flow toward the icicle in a straight line or which might flow from several directions. Impurities in the water can lead
119:
Icicles can pose personal and structural dangers. Icicles that hang from an object may fall and cause injury and/or damage to whoever or whatever is below them. In addition, ice deposits can be heavy. If enough icicles form on an object, such as a wire, beam, or pole, the weight of the ice can
120:
severely damage the structural integrity of the object and may cause the object to break. This can also happen with roofs, where failure can damage nearby parked vehicles or the contents and occupants of the structure. Icicles on roofs can also be associated with
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in width can be calculated and is a complicated function of air temperature, wind speed, and the water flux into the icicle. The growth rate in length typically varies with time, and can in ideal conditions be more than 1 cm (0.39 in) per minute.
434:
Russians risk their lives each year as winter becomes spring causing melting icicles and blocks of ice to fall from roofs, often from a great height, onto defenceless pedestrians below. Regional figures show icicles kill dozens of
Russians each
402:
In 1776, a son of the parish clerk of
Bampton in Devon, England, was killed by an icicle that plummeted from the church tower and speared him. His memorial: Bless my eyes / Here he lies / In a sad pickle / Kill'd by an
349:
Sporting
Magazine: or, Monthly Calendar of the Transactions of The Turf, The Chase, and Every Other Diversion Interesting to the Man of Pleasure, Enterprise, and Spirit, Vol. 27
60:
building), refreezes as it drips off under exposed conditions. Over time continued water runoff will cause the icicle to grow. Another set of conditions is during
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Icicles â the "growth rings" or banding on the icicles occurs as the water in the soil above the cliff thaws during the day and freezes during the night.
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Icicles can form during bright, sunny, but subfreezing weather, when ice or snow melted by sunlight or some other heat source (such as a poorly
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after heavy snow that also caused apartment block roofs to collapse, as well as creating water damage to private homes and to the
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filmed by Hugh Miller and Doug
Anderson, Frozen Planet, BBC Nature, BBC One, broadcast 23 November 2011.
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Large icicles that form on cliffs near highways have been known to fall and damage motor vehicles.
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Given the right conditions, icicles may also form in caves (in which case they are also known as
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The story of an
English youth killed by a falling icicle in 1776 has often been recounted.
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303:"Brinicle, Underwater Icicle, Captured Forming By Time-Lapse Camera"
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Icicles A Concern As Pieces Fall From Above
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In 2010, five people were killed and 150 injured by icicles in
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367:. Aldermaston, England: Travel Publishing Ltd. p. 51.
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417:"Falling icicles kill record numbers in St Petersburg"
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282:'Brinicle' ice finger of death filmed in Antarctic
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16:Spike of ice formed by water dripping and freezing
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386:. New York: Little, Brown and Company. p.
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382:Cold: Adventures in the World's Frozen Places
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85:). They can also form within salty water (
72:to ripples on the surface of the icicles.
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44:formed when water falling from an object
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89:) sinking from sea ice. These so-called
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352:. London: J. Wheble. 1806. p. 95.
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301:Praetorius, Dean (23 November 2011).
215:"Snowmageddon Brings Icicles of Doom"
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187:"Why Icicles Look the Way They Do"
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415:Osborn, Andrew (24 March 2010).
217:. Discovery News. Archived from
213:Ribas, Jorge (9 February 2010).
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365:The Hidden Places of Devon
242:"A model of icicle growth"
143:National Library of Russia
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267:10.1017/S0022143000009072
189:. NY Times. 16 March 2015
363:Billing, Joanna (2003).
287:18 February 2012 at the
103:, which was observed by
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378:Streever, Bill (2009).
334:4 February 2009 at the
21:Icicle (disambiguation)
52:Formation and dynamics
33:
246:Journal of Glaciology
240:Makkonen, L. (1988).
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19:For other uses, see
958:Iceman (occupation)
422:The Daily Telegraph
308:The Huffington Post
258:1988JGlac..34...64M
510:Crystalline phases
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1072:Wikimedia Commons
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397:978-0-316-04291-8
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667:Frost flower
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428:19 September
426:. Retrieved
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314:19 September
312:. Retrieved
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223:. Retrieved
219:the original
191:. Retrieved
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109:Mount Erebus
90:
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66:ice climbers
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37:
35:
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1037:Pleistocene
751:Ice-related
662:Frost heave
596:Stalactites
97:sea urchins
1098:Categories
1083:Wiktionary
1027:Glaciology
982:Other uses
852:Ice racing
847:Ice hockey
822:Iceboating
753:activities
524:Formations
515:Superionic
171:References
62:ice storms
1109:Water ice
794:Sculpture
610:Phenomena
160:Ice spike
95:can kill
92:brinicles
58:insulated
1061:Category
1019:Ice ages
973:YakhchÄl
953:Icehouse
779:Climbing
774:Blocking
769:Blasting
687:Hair ice
637:Crystals
332:Archived
285:Archived
193:25 March
165:Rusticle
155:Brinicle
149:See also
122:ice dams
101:starfish
943:Cutting
917:Pykrete
837:Cycling
832:Curling
827:Cricket
799:Skating
789:Rafting
784:Fishing
764:Bathing
707:Nucleus
692:Jacking
671:sea ice
669: (
601:Volcano
565:calving
563: (
561:Iceberg
556:Glacier
403:icicle.
254:Bibcode
115:Dangers
46:freezes
1076:
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1054:
948:Icebox
907:Palace
892:Bridge
809:Sports
727:Slurry
702:Needle
652:Frazil
571:Icicle
531:Anchor
394:
139:Russia
38:icicle
999:Cream
989:Chips
968:Trade
902:Igloo
897:Hotel
817:Bandy
742:Storm
732:Slush
722:Shuga
717:Shove
677:Glaze
657:Frost
632:Clear
622:Black
591:Spike
586:Sheet
551:Field
491:water
487:state
484:solid
435:year.
87:brine
1009:Pack
1004:Cube
994:Core
963:Pick
936:Work
927:Road
922:Rink
912:Pier
737:Snow
712:Rime
697:Névé
682:Hail
642:Firn
546:Dune
541:Cave
482:The
430:2012
392:ISBN
316:2012
227:2012
195:2015
99:and
887:Bar
647:Fog
581:Sea
576:Jam
536:Cap
489:of
474:Ice
388:147
262:doi
105:BBC
42:ice
36:An
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