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A Mk 6 mine atop its anchor. Two horn fuzes are visible, but the antenna fuze cannot be seen in this image. The Mk 6 mine was a 34-inch-diameter (86 cm) steel sphere containing a buoyancy chamber and 300 lb (140 kg) of TNT. [7] Each mine was constructed of two steel hemispheres welded together.
The burn rate tends to be very fast and the melting point of copper is relatively low, so the reaction produces a significant amount of molten copper in a very short time. Copper(II) thermite reactions can be so fast that it can be considered a type of flash powder .
The World War I mine barrage had reduced the number of mines required by using a copper wire antenna with a float to extend it above the mine. A ship's steel hull touching the copper antenna would form a battery and seawater acted as an electrolyte completing a circuit with an insulated copper plate on the mine surface to actuate a detonating ...
Here's how to clean and polish copper the right way to banish that tarnish once and for all.
Copper is an excellent conductor of heat, which is why this metal is so prized when it comes to cookware. Plus, its rose-gold hue scores serious points in terms of aesthetic appeal—assuming the ...
The Abdiel class were a class of six fast minelayers commissioned into the Royal Navy and active during the Second World War. They were also known as the Manxman class and as "mine-laying cruisers". These ships were armed with a wide variety of defensive weapons from 0.5-inch (13 mm) machine guns to the 4-inch (100 mm) main armament.
16th century cupellation furnaces (per Agricola). Cupellation is a refining process in metallurgy in which ores or alloyed metals are treated under very high temperatures and subjected to controlled operations to separate noble metals, like gold and silver, from base metals, like lead, copper, zinc, arsenic, antimony, or bismuth, present in the ore.
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