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  • final.htm All About Color Real Color Wheel

    B.C. MEDIUM DEVELOPMENTS. 4000 B.C. Boiled tree sap, called pitch, was distilled into turpentine as a paint thinner for the resin paints. Also, alcohol was fermented as a drink and as a thinner for alcohol based paints, made from another tree sap or grapes.

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  • Pictures, stories, and facts about the element Oxygen in

    At 183.0DegreeC oxygen is a beautiful pale blue liquid, but at room temperature it is a colorless gas. It's only 21% of the atmosphere the 21% we all need if we want to live more than a few minutes longer.

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  • Ask the Physicist

    Here is a history of older questions and answers processed by quot;Ask the Physicistquot;. If you like my answer, please consider making a donation to help support this service.

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