An example of the use of calculus in mechanics is Newton's second law of motion: historically stated it expressly uses the term rate of change which refers to the derivative saying The rate of change of momentum of a body is equal to the resultant force acting on the body and is in the same direction.
Symptoms of conjunctivitis can include. 1  Pink or red color in the white of the eye(s) (often one eye for bacterial and often both eyes for viral or allergic conjunctivitis). 2  Swelling of the conjunctiva (the thin layer that lines the white part of the eye and the inside of the eyelid) and/or eyelids. 3  Increased tearing.
Viral and bacterial conjunctivitis are the most common types of pink eye. The viral form is caused by the same virus as the common cold, and usually improves on its own over the course of seven to ten days. For the first ten days (or as long as there are symptoms), viral conjunctivitis is very contagious.