Then they were given some metal sheets and four wooden posts.

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One of the most striking pairings shows two African-American women in tintype, a variant of the wet-collodion process that was popular in the 1860s owing to its cheapness and durability (the images were printed on metal sheets, typically iron).

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At a shopping center in Mount Juliet, large sheets of metal littered the parking lot and light poles were knocked down.

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It sounds Utopian, but it is nothing more than the breaking down of social barriers created by sheets of metal and glass and four wheels.

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His tiny private school, made of rusting sheets of corrugated metal, was struggling - too many orphans, no money, no textbooks.

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His company, EverSealed Windows, based in Colorado, has patented a metal baffle bonded to both sheets of glass that allows them to expand and contract separately, while maintaining a vacuum that he says will last for decades.

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Metal craftsmen, recruited from the commercial side of the construction trade, fashioned the bolts holding the silvery sheets in place from the same metal.

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They had a slightly larger yard than most of their crammed-in neighbors, so they had closed it off with sheets of rusty corrugated metal, and there, at four long wooden tables beneath a string of light bulbs which dangled from a second-story clostra-block window, they served up to thirty customers per night, if the turnover was fast.

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Its product, which consists of sheets of glass with a metal-oxide coating, was first used in skylights in 2003.

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Stronger steel usually requires tradeoffs on other properties, like ductility, a metal's ability to be shaped into forms like sheets and wires.

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