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HowStuffWorks explains hundreds of subjects, from car engines to lock-picking to ESP, using clear language and tons of illustrations. We do the resear

HowStuffWorks Science has explanations and colorful illustrations related to earth science, life science, and other wonders of the physical world.

Steel Works, the Online Resource for Steel - Steel Industry News, Steel Markets, Steel Construction & Steel prices.

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In-stock items ship within 24 hours. We are an industrial steel supplier. Find steel angles, beams, channels, bars, strips, sheets, more.

YouTube is a place to discover, watch, upload and share videos.

USGS Mineral Resources Program Home Page: A source of unbiased information on the occurrence, quality, quantity, and availability of mineral resources. This website contains information about the Program, current activities, and products.

At the National Iron & Steel Heritage Museum in Chester County, PA learn about steelmaking, Rebecca Lukens and other heroes of our industrial heritage.

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EPA Office of Water Home