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A medieval view of fish processing, by Peter Brueghel the Elder (1556). There is evidence humans have been processing fish since the early Holocene. For example, fishbones (c. 8140–7550 BP, uncalibrated) at Atlit-Yam, a submerged Neolithic site off Israel, have been analysed. What emerged was a picture of "a pile of fish gutted and processed ...
Electrofishing. Scientists carrying out a population and species survey using electrofishing equipment. Electrofishing is a fishing technique that uses direct current electricity flowing between a submerged cathode and anode. This affects the movements of nearby fish so that they swim toward the anode, where they can be caught or stunned.
The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ that contributes to the ability of many bony fish (but not cartilaginous fish [ 1]) to control their buoyancy, and thus to stay at their current water depth without having to expend energy in swimming. [ 2] Also, the dorsal position of the swim bladder means ...
A metaphase cell positive for the bcr/abl rearrangement (associated with chronic myelogenous leukemia) using FISH. The chromosomes can be seen in blue. The chromosome that is labeled with green and red spots (upper left) is the one where the rearrangement is present. Fluorescence in situ hybridization (FISH) is a molecular cytogenetic technique ...
A fishing trawler is a commercial fishing vessel designed to operate fishing trawls. Trawling is a method of fishing that involves actively dragging or pulling a trawl through the water behind one or more trawlers. Trawls are fishing nets that are pulled along the bottom of the sea or in midwater at a specified depth.
Girardoni air rifle. The Girandoni air rifle is an air gun designed by Italian inventor Bartolomeo Girandoni circa 1779. The weapon was also known as the Windbüchse ("wind rifle" in German). One of the rifle's more famous associations is its use on the Lewis and Clark Expedition to explore and map the Louisiana Purchase of 1803.
Sights. Telescopic sights. The Hécate II is the standard heavy sniper rifle and anti-materiel rifle of the French Army, sometimes known as the FR-12.7 ( French: Fusil à Répétition de calibre 12.7 mm or "12.7 mm calibre repeating rifle"). It is manufactured by PGM Précision of France. This is the largest weapon manufactured by PGM ...
Sheridan Products Inc. was formed to produce Pneumatic Air Pellet Rifles with production beginning in March 1947. In the early 1940s Co-founder Ed Wackerhagen, dissatisfied with a pellet gun used by his son, set out to build one of the finest airguns in history. The design was to incorporate the philosophy: "Performance is the sum total of many ...