symbols

A physical quantity is the result of measurement and usually expressed as the product of a numerical value and a physical unit (whereby SI units are usually preferred).

Example:

• P = 42.3 x 10³ W = 42.3 kW

With

Communication is the process of exchanging information, usually via common system of symbols. It takes a wide variety of forms, from two people having a face-to-face conversation, to hand signals, to messages sent over global telecommunication networks. The process of communication is what allows us to interact with other people; without it, we would be unable to share knowledge or experiences with anything outside of ourselves. Common forms of communication include speaking, writing, gestures, and broadcasting.

Traditional symbols of Valentine's Day include hearts, doves, Cupid and love notes. American postcard, circa 1900.

American Christmas tree

American Christmas traditions range from religious symbols to the mythos of Santa Claus. Their origins are both Christian and pagan.

2008 Summer Olympics marketing has been a long running campaign that began since Beijing won its bid to host the games in 2001.