In the early nineteenth century, lighthouses in the United States were considered inferior to those in France and England. American mariners complained about the quality of the light emanating from local lighthouse towers, arguing that European lighthouses were more effective at shining bright be

Have you ever wondered how the lights in lighthouses are so bright? In this activity, students will examine a Fresnel lens to develop an understanding of how some lighthouse lenses work. They will then apply their knowledge of the lighthouse lens technology to imagine a new invention using a ligh