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How It's Made-Butter By HowItsMade513 Today they will show you how Butter is made!!! Butter is a dairy product made by churning fresh or fermented cream or milk. It is used as a spread and a condiment, as well as in cooking applications such as baking, sauce making, and frying. Butter consists of butterfat, water and milk proteins. Most usually made from cows' milk, butter can also be manufactured from that of other mammals, including sheep, goats, buffalo, and yaks. Salt, flavorings and preservatives are sometimes added to butter. Rendering butter produces clarified butter or ghee, which is almost entirely butterfat. Butter remains a solid when refrigerated, but softens to a spreadable consistency at room temperature, and melts to a thin liquid consistency at 32--35 °C (90--95 °F). The density of butter is 911 kg/m3 (1535.5 lb/yd3).[1] It generally has a pale yellow color, but varies from deep yellow to nearly white. Its color is dependent on the animal's feed and is commonly manipulated with food colorings in the commercial manufacturing process, most commonly annatto or carotene. PLEASE SUBSCRIBE!!!!! Tags: butter, channel, cheese, cows, dairy, discovery, how, howitsmade513, it's, made, milk, popsci, products, science 1 Downloads - Last from: http://downthisvideo.com/ (Your Blog here!) |
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Sculpting in Solid Mercury, with Liquid Nitrogen (Popsci.com + BB Video) By boingboingvideo READ HOW IT'S DONE HERE! ( http://www.popsci.com/mercuryfish ) Boing Boing Video teams up with PopSci and Theo Gray ( MAD SCIENCE author) for an eerily beautiful science experiment -- how to cast solid, if fleeting, shapes from normally liquid mercury -- just keep it at 320 degrees below zero, with liquid nitrogen. Snip from Theo's experiment, documented in this video: "What you consider solid, liquid or gas depends entirely on where you live. For example, men from cold, cold Mars might build their houses out of ice. Women from Venus, where the average temperature is about 870°F, could bathe in liquid zinc. We think mercury is a liquid metal, but its all relative. At one temperature, the mercury atoms arrange themselves into a solid crystal; at another, they flow freely around each other as a liquid. Children from Pluto (like mine, for example) could happily cast their toy soldiers out of mercury, because on that frigid planet it is a solid, malleable metal a lot like tin. Here on temperate Earth, you need a stove to cast tin, but a tank of liquid nitrogen to make mercury figurines..." http://www.popsci.com/mercuryfish RELATED BOING BOING BLOG POST: http://www.boingboing.net/2009/06/04/... Tags: boingboing, chemistry, dangerous, experiment, explosion, freezing, frozen, gray, mad, mercury, poison, popsci, popular, science, scientific, theo 1 Downloads - Last from: (Your Blog here!) |
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