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The precise origins of the dimensions of US letter-size paper (8.5 × 11 in) are not known. The American Forest & Paper Association says that the standard US dimensions have their origin in the days of manual papermaking, the 11-inch length of the standard paper being about a quarter of "the average maximum stretch of an experienced vatman's arms". [2]
It has the height of Canadian P4 paper (215 mm × 280 mm, about 8 + 1 ⁄ 2 in × 11 in) and the width of international A4 paper (210 mm × 297 mm or 8.27 in × 11.69 in), i.e. it uses the smaller value among the two for each side. The table shows how this format can be generalized into an entire format series.
The most used of this series is the size A4, which is 210 mm × 297 mm (8.27 in × 11.7 in) and thus almost exactly 1 ⁄ 16 square metre (0.0625 m 2; 96.8752 sq in) in area. For comparison, the letter paper size commonly used in North America ( 8 + 1 ⁄ 2 in × 11 in; 216 mm × 279 mm) is about 6 mm ( 0.24 in ) wider and 18 mm ( 0.71 in ...
Due to the large size of the heavy s-block elements, including strontium, a vast range of coordination numbers is known, from 2, 3, or 4 all the way to 22 or 24 in SrCd 11 and SrZn 13. The Sr 2+ ion is quite large, so that high coordination numbers are the rule. [ 16 ]
Here [Ne] refers to the core electrons which are the same as for the element neon (Ne), the last noble gas before phosphorus in the periodic table. The valence electrons (here 3s 2 3p 3) are written explicitly for all atoms. Electron configurations of elements beyond hassium (element 108) have never been measured; predictions are used below.
Since independence, with Jaja Wachuku as the first Minister for Foreign Affairs and Commonwealth Relations, later called External Affairs, Nigerian foreign policy has been characterised by a focus on Africa as a regional power and by attachment to several fundamental principles: African unity and independence; capability to exercise hegemonic influence in the region: peaceful settlement of ...
Over 1.2 million people living in Nigeria (0.5% of its total population, or 1 in every 200 people living in Nigeria) are from a continent other than Africa. There are 100,000 people from the United States, [ 14 ] 75,000 are from Lebanon , [ 15 ] 60,000 are from China [ 16 ] and 16,000 are from the United Kingdom.
Roots economy in the South and cereal economy in the North of Nigeria. Counting by weight, this "underground food" is the largest group of food produced in Nigeria, with 118 million tonnes in 2020. [65] This group includes yam, cassava, potatoes and sweet potatoes. These food products are cultivated mostly in the south of Nigeria ("Roots economy").