Pearls are created when an irritant, such as a grain of sand or debris, gets trapped inside a mollusk. As protection, a smooth layer of mineral and protein called nacre forms around it. Humans have been fascinated by these iridescent beauties since we first discovered them … [Read more...] about The secret symmetry of pearls revealed
Sand
Sand coated in soybean oil is a green substitute for plastic mulch
Mulch is used to help the soil retain its moisture. We tend to think of mulch as something organic made from materials such as bark chips or dead leaves, but the reality is mulch can take the form of plastic. In fact, many farmers use a plastic form of mulch to keep the soil … [Read more...] about Sand coated in soybean oil is a green substitute for plastic mulch
Earth-friendly material filters pollutants out of stormwater
While it’s often overlooked, stormwater has great potential to solve the problem of strained water supplies in urban areas. One of the main reasons why this resource has gone mostly untapped is because stormwater picks up toxic chemicals as it runs through streets and gutters. … [Read more...] about Earth-friendly material filters pollutants out of stormwater