The history of rubber. Maya invented and used in Rubber games, religious practices and tools.
"This project is very exciting because the Reclaimed Rubber of Mesoamerican Ball was a key ritual and political event in these societies, and the ball game could have developed without the invention of the process of the rubber industry." Dorothy Hosler.
Rubber. give our cars, it would certainly be a poor ride without the substance. But what is rubber exactly? And where is it?
Until recently, modern thinkers in the nineteenth century Europe emerged from rubber. According to a Tech Talk Massachusetts Institute of Technology on Wednesday, July 14, 1999 in Learned, Professor Dorothy Hosler, an assistant professor Sandra Burkett and an undergraduate named Michael Tarkanian that the people of the Maya in Central America, the old rubber produced and used as early as 1600 BC.
The Maya used to make latex rubber balls, hollow human figures, and how links are used to protect their heads, ax handles and other features. Latex is the sap of various plants, especially from the rubber tree. If exposed to air, it hardens into an elastic dough. The Mayans learned to mix the rubber SAP with the juice of the vine, morning glory, until it is more resilient and flexible, not brittle. The two rubber trees and morning glory were important plants of the Maya is a hallucinogen and a medicinal herb. You two plants tend to grow closer. The combination of their juices, a black substance on the texture of a compound of type pencil eraser was formed.
The rubber balls were the size of a beach ball and weighed about 15 pounds kg (7). Have been used in a game called Tlachtlic important ritual. The game is a mix between football and basketball, but have a religious meaning as in the Popol Vuh, a Mayan religious document saved. Spanish invaders in the sixteenth century stated that the game has also participated in the play of several properties, including land and slaves. We think that the game ended in a human sacrifice at least part time. Versions of the game were played in the American region in the center of southern Arizona to northern South America. indigenous peoples of the region remains resilient in the same way.
In 1736, several sheets of rubber were in France, where are those who have been sent fascinated. In 1791 an Englishman named Samuel Peal discovered a means of rubber waterproofing material mixed with turpentine. the inventor and the scientist Joseph Priestley English got his hands on one and find some rubber to remove pencil marks on sheets of paper.
Charles Goodyear, an American whose name adorns the tires under millions of cars, is credited with the modern form of rubber. Before 1839, rubber was under the terms of the weather. An Englishman named Sir Henry Wickham collected about seventy thousand rubber tree seeds from Brazil in 1876 and took her to India, where he started rubber plantations. learned in 1877 an American named Chapman Mitchell rubber used for recycling into new products.
Today, about three quarters of the production of synthetic rubber is a petroleum product. The Second World War the United States stopped the flow of rubber in the world, and entered in the production of synthetic rubber for use in the war effort. There are about 20 types of synthetic rubber and the destination determines the selection. In general, to make synthetic rubber, known as by-products of oil and styrene-butadiene rubber are combined in a reactor with water and soap. In the search results milky latex. The latex is extracted from the results of liquid and coagulated rubber "crumbs" that bought manufacturersand blend into many products.
There is only one type of natural rubber. Because the rubber plant only grows in warm, humid regions near the Ecuador, therefore 90% of true rubber production today occurs in the countries of South Asia to Malaysia and Thailand and Indonesia. Indonesia has reduced production in recent years and has started new plantations in Africa, to take over.
