powdered graphite

  • 41Titanium — This article is about the chemical element. For other uses, see Titanium (disambiguation). scandium ← titanium → vanadium …

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  • 42Shaped charge — Sectioned high explosive anti tank round with the inner shaped charge visible …

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  • 43Solid-fuel rocket — A solid rocket or a solid fuel rocket is a rocket with a motor that uses solid propellants (fuel/oxidizer). The earliest rockets were solid fueled, powered by gunpowder, used by the Chinese and Arabs in warfare as early as the 13th century. All… …

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  • 44Crayon — For other uses, see Crayon (disambiguation). Wax crayons A crayon (  / …

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  • 45Drum brake — A drum brake with the drum removed as used on the rear wheel of a car or truck. Note that in this installation, a cable operated parking brake uses the service shoes …

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  • 46Glassblowing — Glassblower Jean Pierre Canlis (right) …

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  • 47Zinc oxide — Other names Zinc white Calamine Identifiers …

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  • 48Chevrolet K5 Blazer — See also Chevrolet Blazer (disambiguation) Chevrolet K5 Blazer Manufacturer General Motors Production 1969–1994 (North America) 1995 2001 (Brazil and Argentina) Assembly Janesville, Wisconsin …

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  • 49Zinc-carbon battery — A Zinc carbon dry cell or battery is packaged in a zinc can that serves as both a container and anode. It was developed from the wet Leclanché cell (pronEng|lɛklɑːnˈʃeɪ). Super or Heavy Duty batteries, technically called zinc chloride cells, are… …

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  • 50List of problems solved by MacGyver — This is a list of problems that have been solved by the fictional character MacGyver from the television series of the same name. (This list is not yet comprehensive.) MacGyver employs his resourcefulness and his knowledge of chemistry,… …

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