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.
1 Morphine is the most abundant opiate derived from the opium plant. 2  With hundreds of brand names, morphine is an analgesic drug that acts directly on the central nervous system. 3  It is a schedule II (or III, depending on formulation) narcotic often used before and after surgical procedures to alleviate severe pain.