Its dimpled titanium skin, an unusual application of this strong, light and corrosion-resistant metal, contributes substantially, especially on the river side.

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Dr Bermel's proposed trap is a thin sheet of tungsten (a heat-resistant metal) that has been processed in quite a complicated way.

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One of Mr. Talbot's favorites is a fine, stiff netlike fabric used by the automobile industry as a support material between upholstery and metal or impact-resistant plastics.

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Warren Buffett has long been resistant to gold fever, frequently dismissing the yellow metal as an investment because it produces no income, most recently bad-mouthing the asset in his annual Berkshire Hathaway shareholder letter.

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While not exactly as secure as metal, The Guardian is extremely drill, shock, and tamper resistant.

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