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.
Elemental or metallic mercury is a shiny, silver-white metal and is liquid at room temperature. When dropped, elemental mercury breaks into smaller droplets. At room temperature, exposed elemental mercury can evaporate to become an invisible, odorless toxic vapor.