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Igloo



 
 
An igloo (Inuit language
Inuit language

The Inuit language is traditionally spoken across the North American Arctic and to some extent in the subarctic in Labrador. It is also spoken in far eastern Russia, particularly the Diomede Islands, but is severely endangered in Russia today and is spoken only in a few villages on the Chukchi Peninsula....
: iglu, Inuktitut syllabics
Inuktitut syllabics

The Inuktitut syllabary is a writing system used by the Inuit in Nunavut and in Nunavik, Quebec. In 1976, the Language Commission of the Inuit Cultural Institute made it the co-official script for the Inuit languages, along with the Latin alphabet....
: ???, "house", plural: iglooit or igluit, but in English commonly igloos), translated sometimes as snowhouse, is the Inuit
Inuit

Inuit is a general term for a group of culturally similar indigenous peoples inhabiting the Arctic regions of Canada, Greenland, Russia and Alaska, United States....
 word for house or habitation, and is not restricted exclusively to snowhouses but includes traditional tents, sod house
Sod house

The sod house or "Soddy" was a corollary to the log cabin during frontier settlement of the United States and Canada. The prairie lacked standard building materials such as wood or stone; however, sod from thickly-rooted prairie grass was abundant....
s, homes constructed of driftwood
Driftwood

Driftwood is wood that has been washed onto a shore or beach of a sea or river by the action of winds, tides, waves or man. It is a form of marine debris....
 and modern buildings.

referring to a snowhouse, igloos are shelters constructed from blocks of snow
Snow

Snow is a type of precipitation in the form of crystalline water ice, consisting of a multitude of snowflakes that fall from clouds. The process of this precipitation is called snowfall....
, generally in the form of a dome
Dome

A dome is a structural element of architecture that resembles the hollow upper half of a sphere. Dome structures made of various materials have a long architectural lineage extending into prehistory....
.






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Igloo
An igloo (Inuit language
Inuit language

The Inuit language is traditionally spoken across the North American Arctic and to some extent in the subarctic in Labrador. It is also spoken in far eastern Russia, particularly the Diomede Islands, but is severely endangered in Russia today and is spoken only in a few villages on the Chukchi Peninsula....
: iglu, Inuktitut syllabics
Inuktitut syllabics

The Inuktitut syllabary is a writing system used by the Inuit in Nunavut and in Nunavik, Quebec. In 1976, the Language Commission of the Inuit Cultural Institute made it the co-official script for the Inuit languages, along with the Latin alphabet....
: ???, "house", plural: iglooit or igluit, but in English commonly igloos), translated sometimes as snowhouse, is the Inuit
Inuit

Inuit is a general term for a group of culturally similar indigenous peoples inhabiting the Arctic regions of Canada, Greenland, Russia and Alaska, United States....
 word for house or habitation, and is not restricted exclusively to snowhouses but includes traditional tents, sod house
Sod house

The sod house or "Soddy" was a corollary to the log cabin during frontier settlement of the United States and Canada. The prairie lacked standard building materials such as wood or stone; however, sod from thickly-rooted prairie grass was abundant....
s, homes constructed of driftwood
Driftwood

Driftwood is wood that has been washed onto a shore or beach of a sea or river by the action of winds, tides, waves or man. It is a form of marine debris....
 and modern buildings.

Igloo as a snowhouse

When referring to a snowhouse, igloos are shelters constructed from blocks of snow
Snow

Snow is a type of precipitation in the form of crystalline water ice, consisting of a multitude of snowflakes that fall from clouds. The process of this precipitation is called snowfall....
, generally in the form of a dome
Dome

A dome is a structural element of architecture that resembles the hollow upper half of a sphere. Dome structures made of various materials have a long architectural lineage extending into prehistory....
. Although igloos are usually associated with all Inuit, they were predominantly constructed by people of Canada
Canada

Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean....
's Central Arctic and Greenland
Greenland

Greenland is a member country of the Kingdom of Denmark located between the Arctic Ocean and Atlantic Oceans, east of the Canadian Arctic Archipelago....
's Thule
Qaanaaq

Qaanaaq is the main town in the northern part of the Qaasuitsup municipality in northwestern Greenland. The inhabitants of Qaanaaq speak the Kalaallisut and many also speak Inuktun....
 area. Other Inuit people tended to use snow to insulate their houses which consisted of whalebone and hides. Snow was used because the air pockets trapped in it make it an insulator
Thermal insulation

The term thermal insulation can refer to materials used to reduce the rate of heat transfer, or the methods and processes used to reduce heat transfer....
. On the outside, temperatures may be as low as , but on the inside the temperature may range from to when warmed by body heat
Thermoregulation

Thermoregulation is the ability of an organism to keep its core temperature within certain boundaries, even when the surrounding temperature is very different....
 alone.

Traditional types

There were three traditional types of igloos, all of different sizes and all used for different purposes.

The smallest was constructed as a temporary shelter, usually only used for one or two nights. These were built and used during hunting trips, often on open sea ice
Sea ice

Sea ice is formed from ocean water that freezes. Because the oceans consist of saltwater, this occurs at about -1.8 ?Celsius .Sea ice may be contrasted with icebergs, which are chunks of ice shelf or glaciers that calve into the ocean....
.

Next in size was the semi-permanent, intermediate-sized family
Family

Family denotes a group of people affiliated by a common ancestry, affinity or co-residence. Although the concept of consanguinity originally referred to relations by "blood," some cultural anthropology have argued that one must understand the idea of "blood" metaphorically, and that many societies understand 'family' through other concepts r...
 dwelling. This was usually a single room dwelling that housed one or two families. Often there were several of these in a small area, which formed an "Inuit village
Village

A village is a clustered human settlement or Residential community, larger than a hamlet , but smaller than a town or city. Though generally located in rural areas, the term urban village may be applied to certain urban area neighbourhoods, such as the West Village in Manhattan, New York City and the Saifi Village in Beirut, Lebanon....
".

The largest of the igloos was normally built in groups of two. One of the buildings was a temporary structure built for special occasions, the other built nearby for living. These might have had up to five rooms and housed up to 20 people. A large igloo might have been constructed from several smaller igloos attached by their tunnels, giving common access to the outside. These were used to hold community feasts and traditional dances.

Modifications

The Central Inuit, especially those around the Davis Strait
Davis Strait

Davis Strait ; lies between mid-western Greenland and Baffin Island in the Canada territory of Nunavut.With a water depth of between one and two thousand meters the strait is substantially shallower than the Labrador Sea to the south or Baffin Bay to the north....
, lined the living area with skin, which could increase the temperature within from around 2 °C (36 °F) to 10-20 °C (50-68 °F).

Construction

The snow used to build an igloo must have sufficient structural strength to be cut and stacked in the appropriate manner. The best snow to use for this purpose is snow which has been blown by wind, which can serve to compact and interlock the ice crystals
Ice crystals

File:Ice crystals on the box.jpgIce crystals are a small Crystal form of ice including Hexagon columns, hexagonal plates, Dendrite , and diamond dust....
. The hole left in the snow where the blocks are cut from is usually used as the lower half of the shelter. Sometimes, a short tunnel is constructed at the entrance to reduce wind and heat loss when the door is opened. Due to snow's excellent insulating properties, inhabited igloos are surprisingly comfortable and warm inside. In some cases a single block of ice is inserted to allow light into the igloo. Architecturally
Architecture

The term architecture can refer to a process, a profession or documentation.As a process, architecture is the activity of designing and construction buildings and other physical structures by a person or a computer, primarily to provide shelter....
, the igloo is unique in that it is a dome that can be raised out of independent blocks leaning on each other and polished to fit without an additional supporting structure during construction. The igloo, if correctly built, will support the weight of a person standing on the roof. Also, in the traditional Inuit igloo the heat from the kulliq (stone lamp) causes the interior to melt slightly. This melting and refreezing builds up an ice sheet
Ice sheet

An ice sheet is a mass of glacier ice that covers surrounding terrain and is greater than 50,000 square kilometer . The only current ice sheets are in Antarctica and Greenland; during the last glacial period at Last Glacial Maximum the Laurentide ice sheet covered much of Canada and North America, the Wisconsin glaciation ice sheet covered n...
 and contributes to the strength of the igloo. The sleeping platform is a raised area compared to where one enters the igloo. Because warmer air rises and cooler air settles, the entrance area will act as a cold trap
Cold trap

In vacuum applications, a cold trap is a device that condenses all vapors except the permanent gases into a liquid or solid. The most common objective is to prevent vapors from contaminating a vacuum pump....
 whereas the sleeping area will hold whatever heat is generated by a stove, lamp or body heat.

In popular use

In heraldry
Heraldry

Heraldry is the profession, study, or art of devising, granting, and blazoning Coat of arms and ruling on questions of rank or protocol, as exercised by an officer of arms....
, the igloo appears as the crest in the coat of arms
Coat of arms of Nunavut

The Coat of Arms of the Territory of Nunavut was granted by a warrant of Rom?o LeBlanc, Governor General of Canada, dated March 31, 1999, one day before the territory of Nunavut, Canada was created....
 of Nunavut
Nunavut

Nunavut is the largest and newest Provinces and territories of Canada of Canada; it was separated officially from the Northwest Territories on April 1, 1999 via the Nunavut Act and the Nunavut Land Claims Agreement Act, though the actual boundaries had been established in 1993....
.

Nanook of the North

The 1922 documentary Nanook of the North
Nanook of the North

Nanook of the North is a silent documentary film by Robert J. Flaherty. In the tradition of what would later be called salvage ethnography, Flaherty captured the struggles of the Inuit Nanook and his family in the Canada arctic....
 contains the oldest surviving movie footage of an Inuit constructing an igloo. In the film, Nanook (real name Allakariallak) builds a large family igloo as well as a smaller igloo for sled pups. Nanook demonstrates the use of an ivory knife to cut and trim snow block, as well as the use of clear ice for a window. His igloo was built in about one hour, and was large enough for five people. The igloo was cross-sectioned for filmmaking, so interior shots could be made. See "External links" for video footage.

See also

  • Snow cave
    Snow cave

    A snow cave is a shelter constructed in snow by certain animals in the wild, human mountaineering, winter recreational enthusiasts, and winter survivalists....
  • Snow fort
    Snow fort

    A snow fort or snow castle is a usually open-topped temporary structure made of snow walls that is used for recreational purposes. Snow forts are generally built by children as a playground game or winter hobby and are used as defensive structures in snowball fights....
  • Quinzhee
    Quinzhee

    A quinzhee or quinzee is a shelter made by hollowing out a pile of settled snow. This is in contrast to an igloo, which is made from blocks of snow....
  • Vernacular architecture
    Vernacular architecture

    Vernacular architecture is a term used to categorise methods of construction which use locally available resources and traditions to address local needs....


External links

  • (Interview on igloos)
  • How to Build an Igloo