Atmospheric refraction Atmospheric refraction is considered in measuring the position of both celestial and terrestrial objects. Astronomical or celestial refraction causes astronomical objects to appear higher above the horizon than they actually are. Terrestrial refraction usually causes terrestrial objects to appear higher than they actually are, although in the afternoon when the air near the ground is heated, the rays can curve upward making objects appear lower than they actually are. Refraction not only affects visible light rays, but all electromagnetic radiation, although in varying degrees. For example, in the visible spectrum, blue is more affected than red. This may cause astronomical
A Web of Sound listening to them is humming in a room where another dozen people are humming also, in a constant pitch, never varying, unchanging." Allmusic's Joe Viglione suggested that "A Web of Sound" also influenced such artists as Iggy Pop and The Stooges and Alice Cooper. Stewart Mason, also of Allmusic, remarked that the album blended "the snotty aggression of ["The Seeds"] a bit with some heavier psychedelic flourishes." Writer Malcolm Russell described "A Web of Sound" as being "more adventurous" than the band's debut album, and said it "brimmed with scratchy mid-60s classics." Don Jacobson of "The Beachwood Reporter" called it