Uranium glass of uranium glass is pale yellowish-green, which in the 1920s led to the nickname vaseline glass based on a perceived resemblance to the appearance of petroleum jelly as formulated and commercially sold at that time. Specialized collectors still define vaseline glass as transparent or semi-transparent uranium glass in this specific color. Vaseline glass is now used as a synonym for any uranium glass, especially in the United States, but this usage is not universal. The term is sometimes carelessly applied to other types of glass based on certain aspects of their superficial appearance in normal light, regardless of actual uranium
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