Special Edition : Flying Weapons - The Impact of Wind-borne Flying Debris -
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چکیده
منابع مشابه
Honeybee: The flying pharmacist
Honeybee, a small -although powerful- creature moves from one place to another to make an elixir, which cures different diseases. To make one kilogram of honey the small creature has to carry 150000 pieces of pollen and suck the sap of ten million flowers. Both honey and the honeybee poison have been used in treating diseases for thousands of years. The product made by such tiny creatures has b...
متن کاملHoneybee: The flying pharmacist
Honeybee, a small -although powerful- creature moves from one place to another to make an elixir, which cures different diseases. To make one kilogram of honey the small creature has to carry 150000 pieces of pollen and suck the sap of ten million flowers. Both honey and the honeybee poison have been used in treating diseases for thousands of years. The product made by such tiny creatures has b...
متن کاملWind-aided dispersal of simulated bark beetles flying through forests
Larger bark beetles such as Ips typographus (Coleoptera: Scolytidae) fly at about 2 m s for up to several hours. Computer simulations in two dimensions showed that bark beetles are capable of dispersing from a brood tree over wide areas while drifting with the wind. For example, if beetles take an angle of maximum turn (AMT) at random up to 10° either left or right each second, about 90% of the...
متن کاملWind tunnel studies of turns by flying dragonflies.
High-speed movies of dragonflies turning in flight on flexible tethers show that there are two distinct modes of turning. In the 'conventional' mode, dragonflies use left-right asymmetries in the wing stroke amplitude, and occasionally in the angle of attack, to produce more lift and thrust on one side than the other. This causes the animal to roll into a bank, so that the lift vector has a sid...
متن کاملNot flying blind: a comparative study of photoreceptor function in flying and non-flying cockroaches.
Flying is often associated with superior visual performance, as good vision is crucial for detection and implementation of rapid visually guided aerial movements. To understand the evolution of insect visual systems it is therefore important to compare phylogenetically related species with different investments in flight capability. Here, we describe and compare morphological and electrophysiol...
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ژورنال
عنوان ژورنال: Wind Engineers, JAWE
سال: 2010
ISSN: 1883-8413,0912-1935
DOI: 10.5359/jawe.35.5