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.
Fertilizer component. Nitrogen was discovered in 1772 by chemist and physician Daniel Rutherford, when the scientist removed oxygen and carbon dioxide from air, demonstrating that the residual gas would support living organisms or combustion, according to the Los Alamos National Laboratory.ertilizer component. Nitrogen was discovered in 1772 by chemist and physician Daniel Rutherford, when the scientist removed oxygen and carbon dioxide from air, demonstrating that the residual gas would support living organisms or combustion, according to the Los Alamos National Laboratory.