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The Dean–Stark method is commonly used to measure moisture content of items such as bread in the food industry. This equipment can be used in cases other than simple removal of water. One example is the esterification of butanol with acetic acid catalyzed by sulfuric acid. The vapor contains 63% ester, 29% water and 8% alcohol at reflux ...
Fishing net - Wikipedia ... Fishing net
A fish trap is a trap used for catching fish and other aquatic animals of value. Fish traps include fishing weirs, cage traps, fish wheels and some fishing net rigs such as fyke nets. [ 1 ] The use of traps are culturally almost universal around the world and seem to have been independently invented many times.
Glass float - Wikipedia ... Glass float
Aquarium heater. An aquarium heater is a device used in the fishkeeping hobby to warm the temperature of water in aquariums. [ 1] Most tropical freshwater and marine aquariums are maintained at temperatures that range from 22 to 30 °C (72 to 86 °F). [ 1][ 2][ 3] The types include glass immersion heaters and undergravel heating. There are also ...
The Albany Fish Traps, also known as the Oyster Harbour Fish Traps, are a series of fish traps situated in Oyster Harbour near the mouth of the Kalgan River approximately 14 kilometres (9 mi) east of Albany in the Great Southern region of Western Australia . The traps were constructed by the Menang peoples and are over 7,500 years old. [ 1]
Elver fishing using basket traps, including eel bucks, has been of significant economic value in many river estuaries on the western seaboard of Europe. The Kuki people of India, Burma, and Bangladesh use many kinds of traps and snares, including the Bawm (basket trap). Ngoituh is a method of using dams and baskets in a flowing river to catch fish.
Hypostomus plecostomus
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