Arctic Circle

The Arctic Circle is one of the five major circles of latitude that mark maps of the Earth. As of 16 January 2016, it runs 66°33′46.1″ north of the Equator.

The region north of this circle is known as the Arctic, and the zone just to the south is called the Northern Temperate Zone. The equivalent polar circle in the Southern Hemisphere is called the Antarctic Circle.

The Arctic Circle is the southernmost latitude in the Northern Hemisphere at which the sun can remain continuously above or below the horizon for 24 hours (at the June solstice and December solstice respectively). North of the Arctic Circle, the sun is above the horizon for 24 continuous hours at least once per year (and therefore visible at midnight) and below the horizon for 24 continuous hours at least once per year (and therefore not visible at noon). On the Arctic Circle those events occur, in principle, exactly once per year, at the June and December solstices, respectively. However, in actuality, because of atmospheric refraction and mirages, and because the sun appears as a disk and not a point, part of the midnight sun may be seen on the night of the northern summer solstice up to about 50 minutes (′) (90 km (56 mi)) south of the Arctic Circle; similarly, on the day of the northern winter solstice, part of the sun may be seen up to about 50′ north of the Arctic Circle. That is true at sea level; those limits increase with elevation above sea level, although in mountainous regions there is often no direct view of the true horizon.

Bear Grylls

Edward Michael "Bear" Grylls (born 7 June 1974) is a British adventurer, writer and television presenter. He is widely known for his television series Man vs. Wild (2006–2011), originally titled Born Survivor: Bear Grylls in the United Kingdom. Grylls is also involved in a number of wilderness survival television series in the UK and US. In July 2009, Grylls was appointed the youngest-ever Chief Scout in the UK at age 35.

Personal life

Grylls was born in Donaghadee, County Down, Northern Ireland. He grew up in Donaghadee until the age of four, when his family moved to Bembridge on the Isle of Wight.

He is the son of Conservative politician Sir Michael Grylls, who was implicated in the cash-for-questions affair, and Lady Sarah Grylls. Lady Grylls is the daughter of politician Patricia Ford, briefly an Ulster Unionist Party MP, and cricketer and businessman Neville Ford. Grylls has one sibling, an elder sister, Lara Fawcett, a cardio-tennis coach, who gave him the nickname 'Bear' when he was a week old.