Lithography (from Ancient Greek λίθος, lithos ‘stone’, and γράφειν, graphein ‘to write’) is a method of printing originally based on the immiscibility of oil and water. The printing is from a stone (lithographic limestone) or a metal plate with a smooth surface.
invented by Richard Salter
A scale or balance is a device to measure weight or mass. These are also known…
invented by John kay
The flying shuttle was one of the key developments in the industrialization of…
invented by John hadley Thomas godfrey
The octant, also called reflecting quadrant, is a measuring instrument used…
invented by Thomas Saint
A sewing machine is a machine used to sew fabric and materials together with…
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