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Business Inquiries: history_with_kayleigh@intheblackmedia.com Videos about Ancient Stone Structures, Human Evolution, Archaeological Discoveries, Ancient Queens, Theories About Ancient Civilizations & Inventions from the Ancient World. I research structures like Burial Mounds, Pyramids, Ziggurats, Dolmens, Henge Monuments, Megalithic Cemeteries, Megalithic Temples, Neolithic homes & Villages. #History #Ancient #Neolithic #Mesolithic #Palaeolithic #Prehistory Subscribe for historical entertainment! Scientific details about me: Name: Kayleigh A.N. During Date of Construction: November 1991 CE Location: North-Holland, The Netherlands Gender: Female Ancestry: Dutch Height: 1,74 meters Structural integrity: Below average, restoration was attempted Date of Restoration; July 2012 Restoration: Removal of tailbone, inconclusive result Current state: Alive (I think?) Eye color: Green Hair color: Blonde Accession Number: 11.14.1991 Wanna do a Collab? email me: historywithkayleigh@gmail.com

• Diffraction limits resolution. • For a circular aperture, lens, or mirror, the Rayleigh criterion states that two images are just resolvable when the center of the diffraction pattern of one is directly over the first minimum of the diffraction pattern of the other. • This occurs for two point objects separated by the angle θ = 1.22 λ / D, where λ is the wavelength of light (or other electromagnetic radiation) and D is the diameter of the aperture, lens, mirror, etc. This equation also gives the angular spreading of a source of light having a diameter D. From http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/Raylei.html Average vision is 5 × 10⁻⁴ radians or 103.13 arcseconds or a ratio of 1:2000 [1 unit resolvable at 2000 units]