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Ammonia fuming is a wood finishing process that darkens wood and brings out the grain pattern. It consists of exposing the wood to fumes from a strong aqueous solution of ammonium hydroxide which reacts with the tannins in the wood. The process works best on white oak because of the high tannin content of this wood.
Working from engineering drawings developed by the toolmaker, engineers or technologists, tool makers lay out the design on the raw material (usually metal), then cut it to size and shape using manually controlled machine tools (such as lathes, milling machines, grinding machines, and jig grinders), power tools (such as die grinders and rotary tools), and hand tools (such as files and honing ...
The smoking of food likely dates back to the paleolithic era. [7] [8] As simple dwellings lacked chimneys, these structures would probably have become very smoky.It is supposed that early humans would hang meat up to dry and out of the way of pests, thus accidentally becoming aware that meat that was stored in smoky areas acquired a different flavor, and was better preserved than meat that ...
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Woodworking was essential to the Romans. It provided, material for buildings, transportation, tools, and household items. Wood also provided pipes, dye, waterproofing materials, and energy for heat. [5]: 1 Although most examples of Roman woodworking have been lost, [5]: 2 the literary record preserved much of the contemporary knowledge.
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Wood, particularly hardwood, is by far the most widely used biomass pyrolyzed to make liquid smoke. Commercial products are made using both batch and continuous methods. Commercial products are made using a range of reactors from rotary calciners, [ 6 ] heated screws, [ 7 ] batch charcoal kilns, [ 8 ] to fast pyrolysis reactors. [ 9 ]