id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_fncy4nj5lbcbhmrftvjxzpx7j4	Kevin J. Anderson	Rubber Stretches Over Two Anniversaries	1988	2	.pdf	application/pdf	1520	105	66	ago, in 1839, Charles Goodyear discovered the vulcanization process by spilling a mixture of rubber latex and sulfur on a latex from rubber trees on their feet and hardened raw rubber were shipped in In 1839 Charles Goodyear discovered the vulcanization process by spilling a mixture of rubber Illustration courtesy of Goodyear Tire & Rubber Co. Eollowing Macintosh's success and improving on Hancock's masticator machine, new but they reached the material limits of natural rubber until the substance itself could process of using sulfur to "dry" rubber. working with a mixture of rubber, sulfur, the trick— "vulcanizing" the rubber, allowing the sulfur to act as a crosslinking Goodyear's new durable rubber, the industry could find mechanical applications, such as bicycle tires and machinery. For nearly four years Hancock worked on his own to discover what 1844—one year after Hancock had discovered a similar (and less effective) process 	./cache/work_fncy4nj5lbcbhmrftvjxzpx7j4.pdf	./txt/work_fncy4nj5lbcbhmrftvjxzpx7j4.txt