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There are two means of incorporating 3D printing into a homeschool plan. One, of course, is by getting a 3D printer for your home. (More on that later.) A simpler means is through a veritable wealth of amazing pre-made models to be found by the clever makers who post on […]
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In the mid-1800s, English chemist William Henry Perkin serendipitously synthesized the first non-natural dye: starting with coal tar, he was hoping to produce the malaria drug quinine but instead created mauve. His discovery revolutionized the textile industry and launched the petrochemical industry. Natural dyes just didn’t have the staying power and vivid colors of the dye Perkin created. Never before had such a steadfast dye been found.
Soon after, August Hofmann (Perkin’s chemistry prof
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When you’re learning a language, it can be difficult to remember all the words and grammatical points. If you’re in a country and trying the immersion method of learning the native tongue, then you likely have a language dictionary on hand. Of course, it can take a while to flip through the pages and find the one or two words that you need to carry on conversation. If you wish …
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