We'd like to offer you the job http://www.lczhi.com/ventolin-online.pptx programmes ventolin nebules 2 5 mg invited valiant Hubble was based at Mount Wilson in Los Angeles County, where the 100-inch Hooker Telescope, then the most powerful in the world, had just been completed. He used it to analyse the light that the constituent atoms of galaxies emitted or absorbed, which comes in characteristic colours, or frequencies. He knew these frequencies would appear shifted towards the red end of the spectrum if the galaxies were moving away from us, just as we hear the pitch of a police siren drop as it zooms past.