Wind-driven turbine vent. 1  Wind-driven roof vents will pull more air from the attic, but only when the wind is blowing. 2  Flat roof vents have no moving parts to break or squeak, but don't vent as much air as wind-driven vents.
An airplane or aeroplane (informally plane) is a powered, fixed-wing aircraft that is propelled forward by thrust from a jet engine or propeller. Airplanes come in a variety of sizes, shapes, and wing configurations. The broad spectrum of uses for airplanes includes recreation, transportation of goods and people, military, and research. Commercial aviation is a massive industry involving the flying of tens of thousands of passengers daily on airliners.
Did you know that plastics are being used to replace more and more aircraft parts? The wing boxes of the Airbus A380 use plastic fibre composites, which reduces the aircraft by 1.5 tons. The aircraft can fly further and carry more cargo using the same amount of fuel, talk about energy-efficiency! Lighter cars with plastics! Plastic is an ideal material for use in car manufacturing. A modern mid-range car contains about 11% plastic material components. That means less weight, less fuel consumption and therefore less CO2 emissions.