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A retractable skylight rolls (on a set of tracks) off the frame, so that the interior of the facility is entirely open to the outdoors, i.e., not impeded by a hinged skylight. The terms retractable skylight and retractable roof are often used interchangeably, though skylight implies a degree of transparency. Tubular daylight device
Light tubes (also known as solar pipes, tubular skylights or sun tunnels [1]) are structures that transmit or distribute natural or artificial light for the purpose of illumination and are examples of optical waveguides. In their application to daylighting, they are also often called tubular daylighting devices, sun pipes, sun scopes, or ...
Polycarbonate is commonly used in eye protection, as well as in other projectile-resistant viewing and lighting applications that would normally indicate the use of glass, but require much higher impact-resistance. Polycarbonate lenses also protect the eye from UV light.
Arc-based cutting methods are used for cutting these materials. Among these, plasma arc cutting is the most commonly employed technique, owing to its precision and ability to cut through high-alloy steels efficiently. [1] Thermal cutting creates a shallow region contaminated material adjacent to the cut surfaces - the heat affected zone. For ...
Skylight, a window, dome, or opening in a roof or ceiling to admit natural light; Sunroof, an opening in an automobile roof which allows light and/or fresh air to enter the vehicle; Roof window, an outward opening window that is incorporated as part of the design of a roof; registered trademark in USA for automotive sunroof and architectural ...
Typical trim tabs on aileron, rudder and elevator. Trim tabs are small surfaces connected to the trailing edge of a larger control surface on a boat or aircraft, used to control the trim of the controls, i.e. to counteract hydro- or aerodynamic forces and stabilise the boat or aircraft in a particular desired attitude without the need for the operator to constantly apply a control force.
The stepped firewall introduced in the closely related Cessna 175 was adopted in the 172, along with the 175's wider, rearranged instrument panel located further aft in the fuselage. For the first time, the Skyhawk name was applied to an available deluxe option package that included optional wheel fairings, avionics, and a cargo door along with ...