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.
When Raj brought Sheldon to a faculty mixer to act as wingman in S03E12 . The Psychic Vortex , they picked up a girl named Abby (Danica McKellar) and her friend, Martha (Jen Drohan), brought them to Sheldon and Leonard's apartment and played Rock Band with them.