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Ray-Ban is a brand of luxury sunglasses and eyeglasses created in 1936 by Bausch & Lomb. The brand is best known for its Wayfarer and Aviator lines of sunglasses. In 1999, Bausch & Lomb sold the brand to Italian eyewear conglomerate Luxottica Group for a reported $640 million.
Ray-Ban Wayfarer sunglasses and eyeglasses have been manufactured by Ray-Ban since 1952. Made popular in the 1950s and 1960s by music and film icons such as Buddy Holly , Roy Orbison and James Dean , Wayfarers almost became discontinued in the 1970s, before a major resurgence was created in the 1980s through massive product placements .
Sacred geometry ascribes symbolic and sacred meanings to certain geometric shapes and certain geometric proportions. [ 1] It is associated with the belief of a divine creator of the universal geometer. The geometry used in the design and construction of religious structures such as churches, temples, mosques, religious monuments, altars, and ...
A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...
Small-angle scattering ( SAS) is a scattering technique based on deflection of collimated radiation away from the straight trajectory after it interacts with structures that are much larger than the wavelength of the radiation. The deflection is small (0.1-10°) hence the name small-angle. SAS techniques can give information about the size ...
Stephen Nedoroscik - AKA the pommel horse hero - revealed what exactly went through his mind while his eyes were closed during the men's all-around final
In September 2009, Ismail Haniyeh, head of the Hamas government in the Gaza Strip, wrote to UN Secretary General Ban Ki-moon – like he had told the New York Times in August 2006: "We would never thwart efforts to create an independent Palestinian state with borders [from] June 4, 1967, with Jerusalem as its capital."
Rachinger correction. In X-ray diffraction, the Rachinger correction is a method for accounting for the effect of an undesired K-alpha 2 peak in the energy spectrum. Ideally, diffraction measurements are made with X-rays of a single wavelength. Practically, the x-rays for a measurement are usually generated in an X-ray tube from a metal's K ...