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The word alchemy was derived from the Arabic word كيمياء or kīmiyāʾ [1] [2] and may ultimately derive from the ancient Egyptian word kemi, meaning black. [ 2 ] After the fall of the Western Roman Empire and the Islamic conquest of Roman Egypt , the focus of alchemical development moved to the Caliphate and the Islamic civilization .
A Bronze Age cauldron, and flesh-hook, made from sheet bronze. The Holy Grail of Arthurian legend is sometimes referred to as a "cauldron", although traditionally the grail is thought of as a hand-held cup rather than the large pot that the word "cauldron" usually is used to mean. This may have resulted from the combination of the grail legend ...
Articles relating to cauldrons, large pots for cooking or boiling over an open fire, with a lid and frequently with an arc-shaped hanger and/or integral handles or feet. There is a rich history of cauldron lore in religion, mythology, and folklore.
These ice cauldrons "are created by melting at subglacial geothermal areas". [5] The meltwater accumulates in lakes "under the cauldrons until it drains every 2–3 years in a jökulhlaup" of normally up to 2,000 m 3 /s (71,000 cu ft/s). [4] An unusually big outburst flood (jökulhlaup) was recorded in 2015.
The term caldera comes from Spanish caldera, and Latin caldaria, meaning "cooking pot". [6] In some texts the English term cauldron is also used, [7] though in more recent work the term cauldron refers to a caldera that has been deeply eroded to expose the beds under the caldera floor. [6]
Cast-iron cauldrons and cooking pots were valued as kitchen items for their durability and their ability to retain heat evenly, thus improving the quality of cooked meals. In Europe and the United States, before the introduction of the kitchen stove in the middle of the 19th century, meals were cooked in the hearth , and cooking pots and pans ...
Glacial pothole in Bloomington on the St. Croix River at Interstate State Park, Wisconsin, U.S.. A giant's kettle, also known as either a giant's cauldron, moulin pothole, or glacial pothole, is a typically large and cylindrical pothole drilled in solid rock underlying a glacier either by water descending down a deep moulin or by gravel rotating in the bed of subglacial meltwater stream. [1]
Ski wax enhances the ability of a ski (or other runner) to slide over snow by reducing its coefficient of friction, which depends on both the properties of the snow and the ski to result in an optimum amount of lubrication from melting the snow by friction with the ski—too little and the ski interacts with solid snow crystals, too much and ...