The name “rubber” originates from the material’s ability to erase pencil marks; its chemical designation is polyisoprene with several isomers. About 60 to 65 percent of the rubber produced today is synthetic. When explorer Christopher Columbus arrived in Haiti in 1492 he found Indians playing a game with a ball made from the latex of rubber. American Indians were also known to have used latex for making footwear, bottles, and cloaks. By 1735 latex had been described as caoutchouc by a... więcej
Salem Press Encyclopedia of Science, 2019. 3p.