منابع مشابه
Ozone Control in High - Flying
To conserve fuel whenever practicable, and to limit cost increases resulzing from world-wide increases in oil prices, passenger aircraft are now flying at higher altitudes than previously. This frequently takes them into the ozone-containing layer of the atmosphere, and when this is drawn into aircraft by air conditioning systems it may cause physical discomfort and irritation to aircrews and p...
متن کاملFlying Ad-Hoc Networks (FANETs): A survey
One of the most important design problems for multi-UAV (Unmanned Air Vehicle) systems is the communication which is crucial for cooperation and collaboration between the UAVs. If all UAVs are directly connected to an infrastructure, such as a ground base or a satellite, the communication between UAVs can be realized through the in-frastructure. However, this infrastructure based communication ...
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 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 کاملFlying high--assessing the use of the aerosphere by bats.
Bats feature prominently among organisms that occupy the aerosphere as they extensively use this environment for foraging, but also for dispersal, migration, and behavioral interactions. Differential use of the aerosphere is an important factor structuring bat assemblages, with species exhibiting distinct morphological, physiological, and sensory adaptations to different habitat types. This nec...
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ژورنال
عنوان ژورنال: Nature
سال: 1967
ISSN: 0028-0836,1476-4687
DOI: 10.1038/2141169a0