Pass the Nuts

Cashew shells can be used to mop up heavy metals. Nature India reports that researchers have developed an absorbent material from chemically modified cashew nut shells, an agricultural waste product, which is able to remove harmful heavy metals such as copper, cadmium, nickel, and zinc from aqueous solutions. This kind of sustainable solution for cleaning up industrial […]

Breaking Through is Hard To Do

I happened to be in Manhattan earlier this week and caught the last day of the New-York Historical Society exhibit “Breakthrough: The Dramatic Story of the Discovery of Insulin.” My favorite part was the black-and-white silent movie showing the early insulin-manufacturing process, in which refrigerator carloads of fetal calf pancreases are ground up, pressed, filtered, and […]