What does ESPN stand for? When ESPN started in 1979, it was the Entertainment and Sports Programming Network, abbreviated ESPN. The full name was dropped in February 198 â¦ 5 when the company adopted a new corporate name -- ESPN, Inc. -- along with a new logo.
Wind is caused by differences in the atmospheric pressure. When a difference in atmospheric pressure exists, air moves from the higher to the lower pressure area, resulting in winds of various speeds.On a rotating planet, air will also be deflected by the Coriolis effect, except exactly on the equator.ind is the flow of gases on a large scale. On the surface of the Earth, wind consists of the bulk movement of air. In outer space, solar wind is the movement of gases or charged particles from the Sun through space, while planetary wind is the outgassing of light chemical elements from a planet's atmosphere into space.
By definition, atmospheric or air pressure is the force per unit of area exerted on the Earthâs surface by the weight of the air above the surface. The force exerted by an air mass is created by the molecules that make it up and their size, motion, and number present in the air. 1  These are important factors because they determine the temperature and density of the air and thus its pressure. The number of air molecules above a surface determines air pressure. As the number of molecules increases, they exert more pressure on a surface and the total atmospheric pressure increases. By contrast, if the number of molecules decreases, so too does the air pressure. Today, air pressure is often measured with a mercury or aneroid barometer. A mercury barometer measures the height of a mercury column in a vertical glass tube.