Testimony of the Fresnel Lens
I was built in Paris in 1842 and shipped to Cornwall by barge. I weighed seventeen hundred pounds. My glass was ground by Augustin Fresnel himself, or so the story went—the story, which I could not verify because I was a lens and could not verify anything, but which I heard repeated by every keeper who cleaned my brass fittings and every inspector who climbed the stairs to examine my facets for...
0 التعليقات 0 المشاركات 7 مشاهدة 0 معاينة