Trivial name for example, hydrogen ("water-producing"), oxygen ("acid-producing"), nitrogen ("soda-producing"), bromine ("stink"), and argon ("no reaction") were based on Greek roots, while the names of iodine and chlorine were derived from the Greek words for their characteristic colors. Indium, rubidium, and thallium were similarly named for the colors of particular lines in their emission spectra. Iridium, which forms compounds of many different colors, takes its name from "iris", the Latin for "rainbow". The noble gases have all been named for their origin or properties. Helium comes from the Greek "helios", meaning "sun" because it was first detected as a line in the
A Whiter Shade of Pale Shade of Pale" at Olympic Sound Studios in London, England. The recording was produced by Denny Cordell. Because they did not have a regular drummer, the drums were played by Bill Eyden, a session musician. The track was completed in two takes, with no subsequent overdubbing. A few days after the session, the band re-recorded the song with their newly recruited drummer, Bobby Harrison, at Advision Studios. This version was discarded, and one of the original mono recordings was chosen for release as the band's debut single. The B-side was "Lime Street Blues", another Brooker–Reid song, which the band recorded