Buckminsterfullerene
Buckminsterfullerene (or bucky-ball) is a spherical fullerene molecule with the formula C60. It has a cage-like fused-ring structure (truncated icosahedron) which resembles a football (soccer ball), made of twenty hexagons and twelve pentagons, with a carbon atom at each vertex of each polygon and a bond along each polygon edge.
It was first generated in 1985 by Harold Kroto, James R. Heath, Sean O'Brien, Robert Curl, and Richard Smalley at Rice University. Kroto, Curl and Smalley were awarded the 1996 Nobel Prize in Chemistry for their roles in the discovery of buckminsterfullerene and the related class of molecules, the fullerenes. The name is a reference to Buckminster Fuller, as C60 resembles his trademark geodesic domes. Buckminsterfullerene is the most common naturally occurring fullerene molecule, as it can be found in small quantities in soot. Solid and gaseous forms of the molecule have been detected in deep space.
Buckminsterfullerene is one of the largest objects to have been shown to exhibit wave–particle duality; as stated in the theory every object exhibits this behavior. Its discovery led to the exploration of a new field of chemistry, involving the study of fullerenes.
Nok
Nok is a village in the south of Kaduna State, Nigeria. The discovery of terracotta figurines at this location caused its name to be used for the Nok culture, of which these figurines are typical, which flourished in Nigeria in the period 1000 BC - 500 AD. The artifacts were discovered in 1943 during mining operations. The archaeologist Bernard Fagg investigated the site, and with the help of locals discovered many other artifacts. Iron smelting furnaces were also found at Nok. Occupation dates far before the first iron smelting. A sample of carbonized wood found in the "main paddock" at Nok in 1951 was dated to around 3660 BC though there are questions about the reliability of this conclusion.
References
NOK
NOK or Nok may refer to:
Cornești, Cluj
Corneşti (Hungarian: Magyarszarvaskend; German: Hirschdorf) is a commune in Cluj County, Romania. It is composed of nine villages: Bârlea (Ónok), Corneşti, Igriţia (Kisigrice), Lujerdiu (Lózsárd), Morău (Móró), Stoiana (Esztény), Tiocu de Jos (Alsótök), Tiocu de Sus (Felsőtök) and Tioltiur (Tötör).
Demographics
According to the census from 2002 there was a total population of 1,809 people living in this town. Of this population, 83.80% are ethnic Romanians, 14.64% are ethnic Hungarians and 1.54% ethnic Romani.
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