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  2. El Hierro - Wikipedia

    en.wikipedia.org/wiki/El_Hierro

    El Hierro (Spanish: [el ˈʝero] ⓘ), nicknamed Isla del Meridiano (the "Meridian Island"), is the farthest south and west of the Canary Islands (an autonomous community of Spain), in the Atlantic Ocean off the coast of Africa, with a population of 11,659 (2023).

  3. Full width at half maximum - Wikipedia

    en.wikipedia.org/wiki/Full_width_at_half_maximum

    In a distribution, full width at half maximum (FWHM) is the difference between the two values of the independent variable at which the dependent variable is equal to half of its maximum value. In other words, it is the width of a spectrum curve measured between those points on the y -axis which are half the maximum amplitude.

  4. Milliradian - Wikipedia

    en.wikipedia.org/wiki/Milliradian

    For instance the same angle of 0.1 mrad will subtend 10 mm at 100 meters, 20 mm at 200 meters, etc., or similarly 0.39 inches at 100 m, 0.78 inches at 200 m, etc. Subtensions in mrad based optics are particularly useful together with target sizes and shooting distances in metric units .

  5. Orders of magnitude (area) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(area)

    1 kilo square meter k(m 2) 1,000 m 2: Surface area of a modern stremma or dunam: 1,250 m 2: Surface area of the water in an Olympic-size swimming pool [35] 4,047 m 2: 1 acre [36] 5,400 m 2: Size of an American football field [37] [38] 7,140 m 2: Size of a typical football (soccer) field [39] [40] 10 4: 1 square hectometre (hm 2) 10,000 m 2: 1 ...

  6. Lanzarote - Wikipedia

    en.wikipedia.org/wiki/Lanzarote

    Lanzarote (UK: / ˌ l æ n z ə ˈ r ɒ t i /, [3] [4] Spanish: [lanθaˈɾote] ⓘ, locally [lansaˈɾote]) is a Spanish island, the easternmost of the Canary Islands in the Atlantic Ocean, 125 kilometres (80 miles) off the north coast of Africa and 1,000 kilometres (600 miles) from the Iberian Peninsula. Covering 845.94 square kilometres (326 ...

  7. Minute and second of arc - Wikipedia

    en.wikipedia.org/wiki/Minute_and_second_of_arc

    The physical group size equivalent to m minutes of arc can be calculated as follows: group size = tan(⁠ m / 60 ⁠) × distance. In the example previously given, for 1 minute of arc, and substituting 3,600 inches for 100 yards, 3,600 tan(⁠ 1 / 60 ⁠) ≈ 1.047 inches. In metric units 1 MOA at 100 metres ≈ 2.908 centimetres.

  8. Hectare - Wikipedia

    en.wikipedia.org/wiki/Hectare

    The playing field used in Gaelic football and hurling is a little over a hectare in size. In 1795, when the metric system was introduced, the are was defined as 100 square metres , or one square decametre , and the hectare (" hecto- " + "are") was thus 100 ares or 1 ⁄ 100 km 2 (10,000 square metres).

  9. 5 euro cent coin - Wikipedia

    en.wikipedia.org/wiki/5_euro_cent_coin

    The first series included the initial of the mint master of the Mint of Finland, Raimo Makkonen (an M), on the bottom left side of the lion and the date to the left. 1999–2007 SECOND SERIES: When the coins were redesign to meet the new design requirements, the initial was replaced by the mint's mint mark and moved to the left, with the ...