Petroleum jelly plastics and minimize ventilation issues, isopropyl (rubbing) alcohol can be used to remove petroleum jelly from most surfaces. Isopropyl alcohol is inert to most household surfaces, including almost every plastic, and removes petroleum jelly efficiently. While alcohol causes fewer ventilation problems than petroleum solvents, ventilation is still recommended, especially if large surface areas are involved. Petroleum jelly is also soluble in lower-molecular-weight oils. Using an oil to dissolve the petroleum jelly first can render it more soluble to solvents and soaps that would not dissolve pure petroleum jelly. Vegetable oils such as canola and olive oil are commonly used to
A Sort of Homecoming (song) contrasts with U2 members' previous religious certainties. The song's line "on borderlands we run...and don't look back" suggests the band had become more comfortable with the contradictions between rock and religious beliefs in comparison to during the "October"-"War" period. The phrase, "poetry is a sort of homecoming" had additional significance for Bono as a singer who was constantly away from home and travelling. A Sort of Homecoming is in the key of D. The song has a tempo of 118 BPM A film of U2 on tour in Northern Europe in October-November 1984 was made to accompany a live version