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 conjunctivitis and bacterial conjunctivitis may affect one or both eyes. Viral conjunctivitis usually produces a watery discharge. Bacterial conjunctivitis often produces a thicker, yellow-green discharge. Both types can be associated with colds or symptoms of a respiratory infection, such as a sore throat. Both viral and bacterial types are very contagious. They are spread through direct or indirect contact with the eye secretions of someone who's infected. Adults and children alike can develop both of these types of pink eye. Bacterial conjunctivitis is more common in children than it is in adults.