Rubber as a material has been known to humankind for thousands of years, initially used by the native South Americans and observed by Cortez in the 1520's and then brought to Europe as a "curiosity" by explorers in the 1750's. So it might... More »
Rubber as a material has been known to humankind for thousands of years, initially used by the native South Americans and observed by Cortez in the 1520's and then brought to Europe as a "curiosity" by explorers in the 1750's. So it might... More »