Laughing Gas (1914 film) from Motion Picture News wrote, "Besides getting into a fight with two of his master's patients and getting generally in the way, [Chaplin] doesn't do anything except create roars of laughter." Laughing Gas (1914 film) Laughing Gas is a 1914 film starring Charlie Chaplin. The film is also known as Busy Little Dentist, Down and Out, Laffing Gas, The Dentist, and Tuning His Ivories. We are told Charlie is a dental assistant. He arrives at work where the patients are already waiting. He joins the tiny second dental assistant in the back room. They have a brief squabble then Charlie
Gas chromatography the sample. The operating program must be carefully chosen according to the expected sample composition. A push-button operation can exist for running similar samples repeatedly, such as in a chemical production environment or for comparing 20 samples from the same experiment to calculate the mean content of the same substance. However, for the kind of investigative work portrayed in books, movies and TV shows, this is clearly not the case. Gas chromatography Gas chromatography (GC) is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. Typical uses of GC