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  2. Stevenson screen - Wikipedia

    en.wikipedia.org/wiki/Stevenson_screen

    The interior size of the screen will depend on the number of instruments that are to be used. A single screen may measure 76.5 by 61 by 59.3 cm (30.1 by 24.0 by 23.3 in) and a double screen 76.5 by 105 by 59.3 cm (30.1 by 41.3 by 23.3 in). The unit is either supported by four metal or wooden legs or a wooden post.

  3. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    Air admittance valves (AAVs, or commonly referred to in the UK as Durgo valves and in the US as Studor vents and Sure-Vent®) are negative-pressure-activated, one-way mechanical valves, used in a plumbing or drainage venting system to eliminate the need for conventional pipe venting and roof penetrations.

  4. Falling weight deflectometer - Wikipedia

    en.wikipedia.org/wiki/Falling_weight_deflectometer

    The sensors are mounted radially from the center of the load plate at typical offsets of 0, 200, 300, 450, 600, 900, 1200 and 1500 mm (the deflections measured at these offsets are denoted D0, D200, D300, etc.). Two types of deflection sensors are used: geophones and force-balance seismometers. Seismometers have built-in calibration devices and ...

  5. Ferrari 308 GTB/GTS - Wikipedia

    en.wikipedia.org/wiki/Ferrari_308_GTB/GTS

    In the rear of the car, additional louvers were added to the engine cover and a cooling vent was placed in the center of the rear bumper, splitting it in two. [17] The deep front spoiler and black roof aileron, optional on the 308, were standard equipment on the 208 Turbo.

  6. Louver - Wikipedia

    en.wikipedia.org/wiki/Louver

    Modern louvers are often made of aluminum, metal, wood, or glass.They may be opened and closed with a metal lever, pulleys, or through motorized operators. [4]The Australian Standard specifies requirements for the construction of buildings using louver in bushfire-prone areas in order to improve their resistance to bushfire attack from burning embers, radiant heat, flame contact and ...

  7. Cross ventilation - Wikipedia

    en.wikipedia.org/wiki/Cross_ventilation

    Cross-breezes work when two windows are opposite of each other. Cross ventilation is a natural phenomenon where wind, fresh air or a breeze enters upon an opening, such as a window, and flows directly through the space and exits through an opening on the opposite side of the building (where the air pressure is lower).