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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 ...
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.
Cleaner fish interaction durations and memories of reoccurring clients are influenced by the neuroendocrine system of the fish, involving hormones arginine vasotocin, Isotocin and serotonin. [ 3 ] Conspicuous coloration is a method used by some cleaner fish, where they often display a brilliant blue stripe that spans the length of the body. [ 9 ]
Glass float - Wikipedia ... Glass float
Siphon - Wikipedia ... Siphon
Filter feeder - Wikipedia ... Filter feeder
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]
Fishing net - Wikipedia ... Fishing net
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