• Thumbnail for Pole and polar
    geometry, a pole and polar are respectively a point and a line that have a unique reciprocal relationship with respect to a given conic section. Polar reciprocation...
    13 KB (1,358 words) - 15:10, 28 March 2025
  • Thumbnail for Polar coordinate system
    the pole, and the point's direction from the pole relative to the direction of the polar axis, a ray drawn from the pole. The distance from the pole is...
    49 KB (6,702 words) - 21:47, 13 May 2025
  • million years a total true polar wander of some 30° has occurred, but that no rapid shifts in Earth's geographic axial pole were found during this period...
    17 KB (1,843 words) - 05:59, 19 February 2025
  • Thumbnail for North Pole
    correctly believed that the North Pole was in a sea, which in the 19th century was called the Polynya or Open Polar Sea. It was therefore hoped that passage...
    75 KB (7,998 words) - 08:28, 28 May 2025
  • Thumbnail for Saturn's hexagon
    Saturn's sustained hexagon. Titanian polar vortices Godfrey, D.A. (1988). "A hexagonal feature around Saturn's north pole". Icarus. 76 (2): 335–356. Bibcode:1988Icar...
    17 KB (1,829 words) - 22:58, 24 May 2025
  • Thumbnail for Polar night
    Polar night is a phenomenon that occurs in the northernmost and southernmost regions of Earth when the Sun remains below the horizon for more than 24 hours...
    20 KB (2,487 words) - 04:25, 17 April 2025
  • of the planet that surround its geographical poles (the North and South Poles), lying within the polar circles. These high latitudes are dominated by...
    7 KB (678 words) - 03:09, 19 October 2024
  • point (the pole). Poles and polars have several useful properties: If a point P lies on a line l, then the pole L of the line l lies on the polar p of point...
    30 KB (4,386 words) - 23:54, 25 May 2025
  • Thumbnail for Pole of inaccessibility
    from the South Pole, at an elevation of 3,718 m (12,198 ft). Using different criteria, the Scott Polar Research Institute locates this pole at 85°50′S 65°47′E...
    43 KB (4,256 words) - 21:54, 29 May 2025
  • Thumbnail for South Pole
    other being the Geographic North Pole). However, Earth's axis of rotation is actually subject to very small "wobbles" (polar motion), so this definition is...
    36 KB (3,582 words) - 08:35, 27 May 2025
  • Polar alignment is the act of aligning the rotational axis of a telescope's equatorial mount or a sundial's gnomon with a celestial pole to parallel Earth's...
    12 KB (1,587 words) - 00:17, 16 March 2025
  • of poles and polars with respect to a conic. Poncelet maintained that the principle of duality was a consequence of the theory of poles and polars. Julius...
    47 KB (5,688 words) - 02:41, 24 March 2025
  • Thumbnail for Amundsen–Scott South Pole Station
    the geophysics of the polar regions of Earth. Before November 1956, there was no permanent artificial structure at the pole, and practically no human presence...
    70 KB (6,657 words) - 13:00, 4 June 2025
  • Thumbnail for Pole star
    the celestial poles. On Earth, a pole star would lie directly overhead when viewed from the North or the South Pole. Currently, Earth's pole stars are Polaris...
    26 KB (2,543 words) - 12:52, 26 May 2025
  • calculate a conic section's axis, vertices, tangents and the pole and polar relationship between points and lines of the plane determined by the conic. The...
    19 KB (3,254 words) - 14:35, 15 March 2025
  • Thumbnail for Open Polar Sea
    Open Polar Sea was a conjectured ice-free body of water that was believed to encircle the North Pole. Although this theory was widely accepted and served...
    6 KB (749 words) - 19:14, 3 February 2025
  • singularity Pole, an element of perspective (geometry) Pole and polar, in geometry Prospective Outlook on Long-term Energy Systems (POLES), a world simulation...
    3 KB (369 words) - 01:36, 22 May 2025
  • Look up polar in Wiktionary, the free dictionary. Polar may refer to: Geographical pole, either of the two points on Earth where its axis of rotation...
    3 KB (417 words) - 02:26, 17 November 2024
  • Thumbnail for Polar curve
    first polar of Q and this is also a curve of degree n−1. The polar line of a point is L if and only if it contains both P and Q, so the poles of L are...
    7 KB (1,204 words) - 15:00, 19 March 2020
  • Thumbnail for Polar climate
    Regions with a polar climate cover more than 20% of the Earth's area. Most of these regions are far from the equator and near the poles, and in this case...
    10 KB (1,294 words) - 13:12, 1 May 2025
  • Thumbnail for North magnetic pole
    time that the magma cooled. South magnetic pole Polar alignment "Magnetic North, Geomagnetic and Magnetic Poles". wdc.kugi.kyoto-u.ac.jp. Retrieved 18 December...
    26 KB (2,852 words) - 03:38, 26 April 2025
  • Thumbnail for Midnight sun
    Midnight sun (redirect from Polar day)
    summer solstice at the polar circle, for several weeks only 100 km (62 mi) closer to the pole, and for six months at the pole. At extreme latitudes, midnight...
    15 KB (1,740 words) - 21:00, 3 April 2025
  • tickets and trying to prevent the children from making it to the North Pole. Model railroad manufacturer Lionel produces a variety of Polar Express train...
    75 KB (6,909 words) - 23:53, 27 May 2025
  • polestar, pole star, or Pole Star in Wiktionary, the free dictionary. Polestar is an electric vehicle brand. Pole star, polestar or polar star may refer...
    2 KB (312 words) - 19:52, 15 February 2025
  • Thumbnail for Polar vortex
    difference between the pole and the tropics causes strong winds, and the Coriolis effect causes the vortex to spin up. The stratospheric polar vortex breaks down...
    38 KB (7,309 words) - 01:08, 26 May 2025
  • Thumbnail for Geographical pole
    Geographical poles. Earth's rotation Polar motion Poles of astronomical bodies True polar wander Kotlyakov, Vladimir; Komarova, Anna (2006). "pole; geographic...
    3 KB (335 words) - 01:13, 28 September 2024
  • Thumbnail for Polar exploration
    Polar exploration is the process of exploration of the polar regions of Earth – the Arctic region and Antarctica – particularly with the goal of reaching...
    5 KB (543 words) - 06:52, 21 January 2025
  • A polar route is an aircraft route across the uninhabited polar ice cap regions. The term "polar route" was originally applied to great circle navigation...
    32 KB (3,508 words) - 18:16, 2 June 2025
  • Thumbnail for Hyperbola
    points and lines generated by a conic is called pole-polar relation or just polarity. The pole is the point, the polar the line. See Pole and polar. By calculation...
    75 KB (13,585 words) - 01:57, 27 January 2025
  • Thumbnail for Amundsen's South Pole expedition
    the Arctic and the conquest of the North Pole by means of an extended drift in an icebound ship. He obtained the use of Fridtjof Nansen's polar exploration...
    76 KB (10,240 words) - 19:27, 14 May 2025