Polar

Polar may refer to:

Geography

Places

People

Mathematics

Polar night

The polar night occurs when the night lasts for more than 24 hours. This occurs only inside the polar circles. The opposite phenomenon, the polar day, or midnight sun, occurs when the Sun stays above the horizon for more than 24 hours. "Night" is understood as the center of the Sun being below a free horizon. Since the atmosphere bends the rays of the Sun, "light wins over darkness" by a few degrees. Hence the area that is affected by polar night is somewhat smaller than the area of midnight sun. The polar circle is located at a latitude between these two areas, at the latitude of approx. 66.5 degrees. For instance, in the most northern city of Sweden, Kiruna (located at the northern latitude of 67°51'), the polar night lasts for around 28 twenty-four hour periods, while the midnight sun lasts around 50 twenty-four hour periods.

Description

A common misconception is that the polar shortest day is totally dark everywhere inside the polar circle, but that is only in places within about 5° the poles, and only when the moon is well below the horizon. Regions located at the inner border of the polar circles experience polar twilight instead of polar night. In fact, polar regions typically get more twilight throughout the year than equatorial regions.

Polar bear

The polar bear (Ursus maritimus) is a carnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is a large bear, approximately the same size as the omnivorous Kodiak bear (Ursus arctos middendorffi). A boar (adult male) weighs around 350–700 kg (772–1,543 lb), while a sow (adult female) is about half that size. Although it is the sister species of the brown bear, it has evolved to occupy a narrower ecological niche, with many body characteristics adapted for cold temperatures, for moving across snow, ice, and open water, and for hunting seals, which make up most of its diet. Although most polar bears are born on land, they spend most of their time on the sea ice. Their scientific name means "maritime bear", and derives from this fact. Polar bears hunt their preferred food of seals from the edge of sea ice, often living off fat reserves when no sea ice is present. Because of their dependence on the sea ice, polar bears are classified as marine mammals.

Grizzly Man

Grizzly Man is a 2005 documentary film by German director Werner Herzog. It chronicles the life and death of bear enthusiast Timothy Treadwell. The film includes some of Treadwell's own footage of his interactions with grizzly bears before 2003, and of interviews with people who knew, or were involved with Treadwell, as well as professionals dealing with wild bears.

He and his girlfriend Amie Huguenard were killed and eaten by a grizzly bear in 2003. Treadwell's footage was found after his death. The bear that killed Treadwell and Huguenard was later encountered and killed by the group retrieving the remains of the victims. The final film was co-produced by Discovery Docs, the Discovery Channel's theatrical documentary unit, and Lions Gate Entertainment. The film's soundtrack is by British singer songwriter and guitarist Richard Thompson.

Synopsis

Herzog used sequences extracted from more than 100 hours of video footage shot by Treadwell during the last five years of his life. He also conducted and filmed interviews with Treadwell's family and friends, and bear and nature experts. Park rangers and bear experts commented on statements and actions by Treadwell, such as his repeated claims that he was defending the bears from poachers. Park rangers noted that there had never been a recorded incident of poaching at this national park.

Cartoon Network

Cartoon Network is an American basic cable and satellite television channel that is owned by the Turner Broadcasting System division of Time Warner. The channel airs primarily animated programming, ranging from action to animated comedy. It was founded by Betty Cohen and launched on October 1, 1992.

It is primarily aimed at children and teenagers between the ages of 7–16, and also targets older teens and adults with mature content during its late night daypart Adult Swim, which is treated as a separate entity for promotional purposes and as a separate channel by Nielsen for ratings purposes. A Spanish language audio track for select programs is accessible via SAP; some cable and satellite companies offer the Spanish feed as a separate channel.

As of February 2015, Cartoon Network is available to approximately 96.4 million pay television households (82.8% of households with television) in the United States.

History

Development

On August 4, 1986, Ted Turner's Turner Broadcasting System acquired Metro-Goldwyn-Mayer/United Artists from Kirk Kerkorian; due to concerns over the debt load of his companies, on October 17, 1986, Turner was forced to sell MGM back to Kerkorian after approximately only 74 days of ownership. However, Turner kept much of MGM's film and television library made prior to May 1986 (as well as some of the United Artists library) and formed Turner Entertainment.