Accurate Measurement of Flammable Gases. Combination instruments provide the flexibility to do general-purpose safety monitoring, as well as detection of very high levels of flammable gases and vapors. TODAY there are a variety of sensors used to detect flammable gases.
I saw Van Halen on the 1984 tour, there was no extra keyboard player. Ed played some keyboard on the intro into Jump and some in the middle, but stuck with the guitar for the solo. He did a solo keyboard pice as well seperately.
In 2010, Stirling appeared as the hip-hop violinist on NBC's America's Got Talent, in which she showcased her unique performance style of dancing and playing the violin at the same time, accompanied by electronic backing tracks.