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Passive calibration satellites are objects of known shape and size. [1] Examples include the Lincoln Calibration Sphere 1 developed by the MIT Lincoln Laboratory.These are generally solid or hollow spheres, since that shape will have the same cross-section regardless of viewing angle, though later passive satellites used wire grid designs. [2]
Flux valve of a type of fluxgate compass used on airplanes. [1] The current in each of the three pickup coils changes with the heading of the aircraft. [1] To avoid inaccuracies created by the vertical component of the field, the fluxgate array must be kept as flat as possible by mounting it on gimbals or using a fluid suspension system
The Garmin G3000 (also G3000H and G2000/G5000) is an avionics interface system designed by Garmin Aviation for light turbine aircraft. [1] The integrated touchscreen system contains multiple glass cockpit displays for operating a synthetic vision system and a three-dimensional rendering of terrain.
Direction determination refers to the ways in which a cardinal direction or compass point can be determined in navigation and wayfinding.The most direct method is using a compass (magnetic compass or gyrocompass), but indirect methods exist, based on the Sun path (unaided or by using a watch or sundial), the stars, and satellite navigation.
Where To Place The Thermometer In A Turkey. For accurate temperature readings when cooking turkey, where you place the thermometer matters just as much as what type of thermometer you use.
Floating-card compass with prismatic sight (bearing 220° through eyepiece). The marine hand compass, or hand bearing compass|hand-bearing compass as it is termed in nautical use, has been used by small-boat or inshore sailors since at least the 1920s to keep a running course or to record precise bearings to landmarks on shore in order to determine position via the resection technique.
The description boasts, "Carefully designed with your cats' well-being in mind, this Christmas Tree Cat Scratcher incorporates safe, non-toxic materials, and is tightly wrapped with high-quality ...
Cold and flu season always comes around when the weather starts to change. But does cold, wet weather actually make you sick?Not really, experts say. But cooler temperatures and dry winter air can ...