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The agriculture and forestry industries use insect pheromones commercially in pest control using insect traps to prevent egg laying and in practicing the mating disruption. It is expected that insect pheromones can also contribute in this way to the control of insect-borne infectious diseases such as malaria, dengue fever or African ...
The V-1 flying bomb (German: Vergeltungswaffe 1 "Vengeance Weapon 1" [a]) was an early cruise missile.Its official Reich Aviation Ministry (RLM) designation was Fieseler Fi 103 [3] and its suggestive name was Höllenhund ().
The Vosper 73 foot Motor Torpedo Boat was a mid-twentieth century British motor torpedo boat (MTB) designed by Vosper that served in the Royal Navy Coastal Forces during the Second World War. At 73 ft (22 m) long they were considered small boats compared to longer designs such as the Fairmile D .
The XP-38 gondola mockup was designed to mount two .50-caliber (12.7 mm) M2 Browning machine guns with 200 rounds per gun (rpg), two .30-caliber (7.62 mm) Brownings with 500 rpg, and a United States Army Ordnance Department prototype T1 23 mm (.90 in) autocannon with a rotary magazine as a substitute for the nonexistent 25 mm Hotchkiss aircraft ...
Wind turbine air compressor. [8] Wind turbine powered hydraulic pump. [9] Compressed air can also be produced by attaching an air compressor or hydraulic pump to a wind turbine [8] [9] or by using a river, tidal or wave hydropower turbine. These all convert directly from mechanical to pneumatic energy.
Special types of fans are used as low-pressure compressor stages in aircraft engines. Examples of axial fans are: Table fan: Basic elements of a typical table fan include the fan blade, base, armature, and lead wires, motor, blade guard, motor housing, oscillator gearbox, and oscillator shaft. The oscillator is a mechanism that motions the fan ...
The T55E1 3-inch gun motor carriage was a prototype vehicle developed by the Allied Machinery Manufacturing Company in 1943 for the US Army. An eight-wheel drive vehicle, the T55E1 was armed with one three-inch gun in a limited traverse mounting and a supporting .50 caliber machine gun.
The development of insect mouthparts from the primitive chewing mouthparts of a grasshopper in the centre (A), to the lapping type (B) of a bee, the siphoning type (C) of a butterfly and the sucking type (D) of a female mosquito. Legend: a, antennae; c, compound eye; lb, labium; lr, labrum; md, mandibles; mx, maxillae; hp hypopharynx.