We created a procedure that predicts in the lab how many years a given plaster will withstand real-world conditions before algae and fungi appear.
The lens is an important element of the eye of mammals, birds, reptiles, amphibians, and fish. It allows one to see objects located at different distances clearly. It is possible because images are formed on the retina - another important part of the eye. Clear images are achieved by changes in the shape of the lens.