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Knight Dunlap. Olga Bridgman. George Malcolm Stratton (September 26, 1865 – October 8, 1957) was an American psychologist who pioneered the study of perception in vision by wearing special glasses which inverted images up and down and left and right. He studied under one of the founders of modern psychology, Wilhelm Wundt, and started one of ...
Porro prism designs have the added benefit of folding the optical path so that the physical length of the binoculars is less than the focal length of the objective. Porro prism binoculars were made in such a way to erect an image in a relatively small space, thus binoculars using prisms started in this way.
Optical coating. An optical coating is one or more thin layers of material deposited on an optical component such as a lens, prism or mirror, which alters the way in which the optic reflects and transmits light. These coatings have become a key technology in the field of optics. One type of optical coating is an anti-reflective coating, which ...
Crown glass is a type of optical glass used in lenses and other optical components. It has relatively low refractive index (≈1.52) and low dispersion (with Abbe numbers between 50 and 85). Crown glass is produced from alkali-lime silicates containing approximately 10% potassium oxide and is one of the earliest low dispersion glasses .
History of optics. Modern ophthalmic lens making machine. Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek philosophers, and the development of geometrical optics in the Greco-Roman world. The word optics is derived from the Greek term ...
Bush “was beaming all night,” but the ladies called it an early evening, leaving the party by 11 p.m. Soccer Stars Ashlyn Harris and Ali Krieger’s Relationship Timeline
The song opens with the boy emerging from a dream: “I wake up crying.”. Bush explains: “It’s like setting a scene that immediately suggests that this person is no longer with someone they ...
George Bush: The Life of a Lone Star Yankee is a 1997 biography of George H. W. Bush written by Herbert S. Parmet and published by Scribner . Andrew Delbanco of The New York Times described it as "the first full-scale biography" of Bush. [1] According to Delbanco, the book's "theme is how George Bush found his father's patrician New England ...