1 Forensic phonetics: the use of phonetics (the science of speech) for forensic (legal) purposes. 2  Speech recognition: the analysis and transcription of recorded speech by a computer system. 3  pronunciation: to learn actual pronunciation of words of various languages.
Mercury vapor is odorless, colorless and very toxic. Even though liquid mercury evaporates slowly, a significant amount of mercury vapor can build up indoors after mercury is spilled, and it can be dangerous to breathe these mercury vapors.
One night in February, high school principal Matthew Smith got a frightening wake-up call. The local fire department alerted him that the home of a student at Agua Fria High School was contaminated with liquid mercury that apparently had been taken from a science classroom.