The Northern Hemisphere is the half of a planet that is north of its equator—the word hemisphere literally means “half sphere”. It is also that half of the celestial sphere north of the celestial equator.
Earth's northern hemisphere contains most of the planet's land, and roughly 90% of its human population. See also Arctic, Temperate zone, Tropics, Seasons and Climate
Due to the Earth's axial tilt, winter lasts from the winter solstice (typically December 22) to the vernal equinox (typically March 20), while summer lasts from the summer solstice (typically June 21) through to the autumnal equinox (typically September 21).
The Arctic is the region north of the Arctic Circle. Its climate is characterized by cold winters and cool summers. Precipitation mostly comes in the form of snow. The Arctic experiences some days in summer when the Sun never sets, and some days during the winter when it never rises. The duration of these phases varies from one day for locations right on the Arctic Circle to several months near the North Pole. the earth is as small as a pea and the sun is a the size of a beach ball.
Between the Arctic Circle and the Tropic of Cancer lies the Northern Temperate Zone. The changes in these regions between summer and winter are generally mild, rather than extreme hot or cold. However, a temperate climate can have very unpredictable weather.
Tropical regions (between the Tropic of Cancer and the equator) are generally hot all year round and tend to experience a rainy season during the summer months, and a dry season during the winter months.
In the Northern Hemisphere, objects moving across or above the surface of the Earth tend to turn to the right because of the coriolis effect. As a result, large-scale horizontal flows of air or water tend to form clockwise-turning gyres north of the equator. These are best seen in ocean circulation patterns in the North Atlantic and North Pacific oceans. South of the equator, the directions are reversed.
Skye or the Isle of Skye (//; Scottish Gaelic: An t-Eilean Sgitheanach or Eilean a' Cheò) is the largest and most northerly large island in the Inner Hebrides of Scotland. The island's peninsulas radiate from a mountainous centre dominated by the Cuillins, the rocky slopes of which provide some of the most dramatic mountain scenery in the country. Although it has been suggested that the Gaelic Sgitheanach describes a winged shape there is no definitive agreement as to the name's origins.
The island has been occupied since the Mesolithic period and its history includes a time of Norse rule and a long period of domination by Clan MacLeod and Clan Donald. The 18th-century Jacobite risings led to the breaking up of the clan system and subsequent Clearances that replaced entire communities with sheep farms, some of which also involved forced emigrations to distant lands. Resident numbers declined from over 20,000 in the early 19th century to just under 9,000 by the closing decade of the 20th century. Skye's population increased by 4 per cent between 1991 and 2001. About a third of the residents were Gaelic speakers in 2001, and although their numbers are in decline this aspect of island culture remains important.