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Vincenty's formulae. Vincenty's formulae are two related iterative methods used in geodesy to calculate the distance between two points on the surface of a spheroid, developed by Thaddeus Vincenty (1975a). They are based on the assumption that the figure of the Earth is an oblate spheroid, and hence are more accurate than methods that assume a ...
Gravity model of trade. The gravity model of international trade in international economics is a model that, in its traditional form, predicts bilateral trade flows based on the economic sizes and distance between two units. Research shows that there is "overwhelming evidence that trade tends to fall with distance." [2]
The time zone is three hours ahead of UTC , which is the same as Moscow Time, Arabia Standard Time, Further-eastern European Time and Eastern European Summer Time. As this time zone is predominantly in the equatorial region, there is no significant change in day length throughout the year and so daylight saving time is not observed. East Africa ...
The equations for the use of the data retrieved from these tables are very simple. Q= heat gain, usually heat gain per unit time. A= surface area. U= Overall heat transfer coefficient. CLTD= cooling load temperature difference. SCL= solar cooling load factor. CLF= cooling load factor. SC= shading coefficient.
In its original and the most general form, the Sellmeier equation is given as. where n is the refractive index, λ is the wavelength, and Bi and Ci are experimentally determined Sellmeier coefficients. These coefficients are usually quoted for λ in micrometres. Note that this λ is the vacuum wavelength, not that in the material itself, which ...
Africa. Africa, the world's second-largest and second-most populous continent, spans across six different time zone offsets from Coordinated Universal Time (UTC): UTC−01:00 to UTC+04:00. [2] [3] As Africa straddles the equator and tropics, there is little change in daylight hours throughout the year [4] and as such daylight saving time is ...
The history of East Africa has been divided into its prehistory, the major polities flourishing, the colonial period, and the post-colonial period, in which the current nations were formed. East Africa is the eastern region of Africa, bordered by North Africa, Central Africa, Southern Africa, the Indian Ocean, and the Sahara Desert.
Time. For multi-lingual speakers in East Africa, the convention is to use the time system applicable to the language one happens to be speaking at the time. A person speaking of an early morning event in English would report that it happened at eight o'clock. However, in repeating the same facts in Swahili, one would state that the events ...