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  2. Aquarium fish feeder - Wikipedia

    en.wikipedia.org/wiki/Aquarium_fish_feeder

    Fish feeders are usually clamped to the wall of the tank just over the water. Most designs consist of a hopper which is loaded with a variety of dry food, a timer which rotates the hopper at regular intervals (dispensing food in the process), and a method of setting the interval between feeding and the amount of food dispensed.

  3. Maurizio Porfiri - Wikipedia

    en.wikipedia.org/wiki/Maurizio_Porfiri

    Maurizio Porfiri (born Rome, Italy) is an engineering professor, mostly noted for his work with robotic fish and aquatic research. [1] His research revolves around modeling and control of complex systems, with applications from mechanics to behavior, public health, and robotics.

  4. Aquatic feeding mechanisms - Wikipedia

    en.wikipedia.org/wiki/Aquatic_feeding_mechanisms

    The expansion phase involves the initial opening of the jaws to capture prey. These movements during the expansion phase are similar across all suction feeders with the kinesis of the skull leading to slight variations. During the compression phase, the jaws close and water is compressed out of the gills.

  5. Feeder - Wikipedia

    en.wikipedia.org/wiki/Feeder

    Feeder, frontage road, or other small road eventually delivering traffic to a larger one; Feeder line (disambiguation), a peripheral route or branch from a main line or trunk line; Aquarium fish feeder, an electric or electronic device that is designed to feed aquarium fish at regular intervals; Automatic document feeder, in office equipment ...

  6. Vibrating feeder - Wikipedia

    en.wikipedia.org/wiki/Vibrating_feeder

    A vibratory feeder is an instrument that uses vibration to "feed" material to a process or machine.Vibratory feeders use both vibration and gravity to move material. Gravity is used to determine the direction, either down, or down and to a side, and then vibration is used to move the material.

  7. Feeder fish - Wikipedia

    en.wikipedia.org/wiki/Feeder_fish

    Guppies are a common example of feeder fish. Feeder fish is the common name for certain types of small, inexpensive fish commonly fed as live food to other captive animals such as predatory fishes (e.g. aquarium sharks, farmed salmon and tuna) or carnivorous aquarium fish (e.g. oscars, gar, grouper and rays), turtles, crocodilians and other piscivores that naturally hunt in fresh, brackish or ...

  8. Fish aggregating device - Wikipedia

    en.wikipedia.org/wiki/Fish_aggregating_device

    A fish aggregating (or aggregation) device (FAD) is a man-made object used to attract pelagic fish such as marlin, tuna and mahi-mahi (dolphin fish). They usually consist of buoys or floats tethered to the ocean floor.

  9. Direction finding - Wikipedia

    en.wikipedia.org/wiki/Automatic_Direction_Finder

    An automatic direction finder, which could be tuned to radio beacons called non-directional beacons or commercial AM radio broadcasters, was in the 20th century a feature of most aircraft, but is being phased out. [1] For the military, RDF is a key tool of signals intelligence.

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