A simple example of a polarized transverse wave is vibrations traveling along a taut string (see image); for example, in a musical instrument like a guitar string. Depending on how the string is plucked, the vibrations can be in a vertical direction, horizontal direction, or at any angle perpendicular to the string.
Commission on Narcotic Drugs considers future of drug control. 14 March 2008 - The 51 st session of the annual Commission on Narcotic Drugs (CND) wrapped up today.
What is a narcotic drug? The first thing you should understand about the word narcotic is that it is used incorrectly more than it is used correctly. One good, quick way to tell whether someone actually knows anything about this subject is to listen to their use of this word.