General Knowledge Pt. III

MP3 is acronym for MPEG audio Layer-3. MPEG is the acronym for Moving Picture Experts Group, which developed compression systems, used for video data like DVD movies and HDTV broadcasts. The MP3 format is a compression system for music. It helps reduce the number of bytes in a song without affecting the quality of the sound. The goal of the MP3 format is to compress a CD-quality song by a factor of 10 to 14 without noticeably affecting the sound quality With MP3, a 32-megabyte (MB) song on a CD compresses to about.

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Introduction to Gas Chromatography. Part 1. General Introduction.

Professor Harold McNair explained in this short course of 10 minutes online, the basic elements of gas chromatography. This is part of a series of training sessions for the Year of Education in separation science, and opened a chromed separationsNOW John Wiley Company. Harold McNair is an expert in the field and has many educational books on chromatography.



http://www.youtube.com/watch?v=dffeiLgeKx8&hl=en

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