Continental Drift

Written about in Chinese texts 2000 years ago, utilized by the Romans, and now employed across Latin America, Africa, and Asia, clay pitcher irrigation is a low-tech solution that is helping thousands of communities in arid regions of the world cultivate farmland during dry seasons of the year. These buried, unglazed pots allow water to [...]

What Is It? Chitin (kai-tin), one of the three must abundant organic compounds in nature (along with cellulose and starch), is the structural material found in the shells of crustaceans such as shrimp and crabs, and also in insect shells and fungi cell walls. From chitin we derive chitosan (kai-toe-zan). Chitosan is a natural wonder. [...]