How do air parcels respond to a horizontal air pressure gradient? A horizontal pressure gradient refers to air pressure changes along a surface of constant altitude. The horizontal wind is governed by interactions of the pressure gradient force, centripetal force, Coriolis Effect, friction, and gravity. The pressure gradient force initiates air motion and arises in part from spatial variations in air temperature and, to a lesser extent, water vapor concentration.
Carbon fiber was invented in 1958 by Roger Bacon. It used Rayon  fibers which where heated until carbonized to create a highly  durable and strong material.
Amy 9/9/2000. Carbon was first discovered as charcoal in prehistoric times. The name of the discoverer will probably never be known. The element's name in many languages is derived from the words for charcoal or for coal [ 1 ]; the English carbon is derived from the Latin name for burnt wood (carbo) [ 2 ]. Carbon, from Elementymology & Elements Multidict by Peter van der Krogt.