But convection currents are ultimately at the mercy of temperature differences because these are what create pressure differences in the first place. The pressure difference between two locations is called a pressure gradient, and the force that actually moves air as wind is called the pressure gradient force.
oÂ·nus. n. 1. A difficult or disagreeable responsibility or necessity; a burden or obligation. 2. Responsibility for an error or fault; blame: Each side wants to avoid the onus of having started the disagreement. 3.
Sonus is a Latin word that means ânoise, soundâ or âtone, character, style.â It is also the root word for sonic and sound and was included in the names of well-known companies, including Sonus Networks, Sony and Panasonic, among others. Sonus Networks, a technology and telecommunications equipment company headquartered in Massachusetts.