What do windshield wipers do?

Windshield wipers are devices used to remove rain, snow and debris from the windshield of a vehicle. They consist of a series of rubber blades attached to a frame that is pivoted on an arm and operated by a motor. The motor drives the arm back and forth, causing the blades to sweep across the windshield and wipe away any obstructions. Windshield wipers are an essential safety feature for vehicles as they help to ensure clear visibility for drivers in adverse weather conditions.