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Vortex Optics is a DBA of Sheltered Wings, Inc., which was incorporated in Wisconsin in 1989. Sheltered Wings, Inc. DBA Vortex Optics began in 2002. In 2022 after extensive research, testing and reviews Vortex became an official supplier and contractor to the American Military as the U.S. Army selected Vortex‘s XM-157 fire control system for its Next Generation Squad Weapon program.
PU telescopic sight from above. The PU scope (ПУ, прицел укороченный, 'Scope short-cut' in comparison to PE/PEM telescopic sight) is a 3.5×21 telescopic sight of Soviet manufacture, widely used since 1940 on the SVT-40 rifle for which it was originally designed and since 1942 on the Mosin–Nagant rifle.
A3D (Aureal 3-Dimensional) is the technology used by Aureal Semiconductor in their Vortex line of PC sound chips to deliver three-dimensional sound through headphones, two or even four speakers. The technology used head-related transfer functions (HRTF), which the human ear interprets as spatial cues indicating the location of a particular ...
Cold subsides when the vortex restabilizes and drives the arctic air back north. January’s freeze-out comes after December started cold, but finished out unusually warm across most of the country.
A vortex beam of order l will be split into n = l + 1 lobes, roughly around the depth of focus of a tilted convex lens. Furthermore, the orientation of lobes (right and left diagonal), determine the positive and negative orbital angular momentum orders. [16] A vortex beam generates a lobe structure when interfered with a vortex of opposite sign.
They are prescription GLP-1 agonists that promote weight loss by slowing digestion and reducing appetite, Lee says. Both medications have undergone testing and received approval by the U.S. Food ...
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A half marathon is a road running event of 21.0975 kilometres (13 miles 192.5 yards)—half the distance of a marathon. [1] It is common for a half marathon event to be held concurrently with a marathon or a 5K race, using almost the same course with a late start, an early finish, or shortcuts. [2]