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Erythrophleum Ivorense
''Erythrophleum ivorense'' is a species of leguminous tree in the genus ''Erythrophleum'' found in the rainforests of tropical West and Central Africa. The tree has many uses; the timber is used for heavy construction, for making charcoal and for firewood, the bark is used for tanning and in traditional medicine, and both bark and seeds are poisonous and used for hunting. Description ''Erythrophleum ivorense'' is a tall evergreen tree that can grow to a height of . The trunk is cylindrical and up to in diameter; it may be fluted near the base and may have buttresses. The bark is grey, scaly and fissured, and the inner bark is granular and reddish. The young twigs are downy and the alternate, bi-pinnate leaves each have up to seven pairs of alternately arranged ovate leaflets and a terminal leaflet. The inflorescence is a terminal or auxiliary raceme, about long, covered with reddish-brown down. The flowers are reddish-brown and hairy, with parts in fives, and are followed by fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auguste Chevalier
Auguste Jean Baptiste Chevalier (June 1873, in Domfront – June 1956, in Paris) was a French botanist, taxonomist, and explorer of tropical Africa, especially of French colonial empire in Africa that included Côte d'Ivoire. He also explored and collected plants in South America and tropical Asia. Chevalier was a prolific contributor to the knowledge of African plants, studying forest trees and their woods, grasses, and agricultural plants of the continent. Unlike other botanists who studied the plants of tropical Africa, Chevalier also ranged to the floral regions of the Sahara. In 1896, he obtained his degree in natural sciences and in 1901 his phD from the University of Lille.Prosopo Sociétés savantesJSTOR Global ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheel Hub
A wheel is a rotating component (typically circular in shape) that is intended to turn on an axle bearing. The wheel is one of the key components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel, steering wheel, potter's wheel, and flywheel. Common examples can be found in transport applications. A wheel reduces friction by facilitating motion by rolling together with the use of axles. In order for a wheel to rotate, a moment must be applied to the wheel about its axis, either by gravity or by the application of another external force or torque. Terminology The English word ''wheel'' comes from the Old English word , from Proto-Germanic , from Proto-Indo-European , an extended form of the root . Cognates within Indo-European in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
