Castilla elastica Castilla elastica Castilla elastica, the Panama rubber tree, is a tree native to the tropical areas of Mexico, Central America, and northern South America. It was the principal source of latex among the Mesoamerican peoples in pre-Columbian times. The latex gathered from "Castilla elastica" was converted into usable rubber by mixing the latex with the juice of the morning glory species "Ipomoea alba" which, conveniently, is typically found in the wild as a vine climbing "Castilla elastica". The rubber produced by this method found several uses, including most notably, the manufacture of balls for the Mesoamerican ballgame "ōllamaliztli". The Aztec
What Do You Mean? What Do You Mean? "What Do You Mean?" is a song recorded by Canadian singer Justin Bieber for his fourth studio album "Purpose" (2015). The song was released on August 28, 2015, as the album's lead single by Def Jam. Written by Bieber, Jason "Poo Bear" Boyd and Mason Levy, the song was produced by MdL and co-produced by Bieber. "What Do You Mean?" is a pop and tropical house song, with its instrumentation consisting in light flourishes of panpipes, looped vocal samples, piano chords, fervent synths, bass and "slick beat" elements with the sound of a clock ticking, while