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Letters and typographical symbols were sometimes used to create illustrations, in a precursor to ASCII art. Because changing ink color in a mimeograph could be a laborious process, involving extensively cleaning the machine or, on newer models, replacing the drum or rollers, and then running the paper through the machine a second time, some ...
The hectograph introduced in 1876 or shortly before, was a technology in which a dye-impregnated master copy, not unlike a spirit master, was laid on top of a cake pan full of firm gelatin. After the dye soaked into the gelatin, sheets of paper could be laid on top of the gelatin to transfer the image. This was good for 50 copies at most.
A partial list of Roman place names in Great Britain. [1] This list includes only names documented from Roman times. For a more complete list including later Latin names, see List of Latin place names in Britain. The early sources for Roman names show numerous variants and misspellings of the Latin names.
Although the Roman Catholic church adopted the Gregorian calendar in 1582, England / Britain, a Protestant nation, didn't adopt it until 1752.) O.T. – Old Testament Oxon. – Oxonium, Oxonienses ("Oxford", "Theologians or Scholars of Oxford")
The parts washer was a success from the start, and he decided in the early 1960s not to sell his machine, but to lease it to the customer and service it by removing and replenishing the used solvent. Since the early 1990s there has been a significant shift towards aqueous based systems due to the environmental and safety hazards associated with ...
Name(s) Image Description Plain washer (or "flat washer") A flat annulus or ring, often of metal, used to spread the load of a screwed fastening. Additionally, a plain washer may be used when the hole is a larger diameter than the fixing nut. [2] [3] Fender washer (US), penny washer, mudguard washer, or "repair washer" (UK)
This list is incomplete; you can help by adding missing items. ( September 2017 ) Note that some people may be listed multiple times, once for each part of the name.
Pont du Gard (1st century AD), over the Gardon in southern France, is one of the masterpieces of Roman technology. Ancient Roman technology is the collection of techniques, skills, methods, processes, and engineering practices which supported Roman civilization and made possible the expansion of the economy and military of ancient Rome (753 BC – 476 AD).