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  2. Non-ferrous metal - Wikipedia

    en.wikipedia.org/wiki/Non-ferrous_metal

    In metallurgy, non-ferrous metals are metals or alloys that do not contain iron (allotropes of iron, ferrite, and so on) in appreciable amounts.. Generally more costly than ferrous metals, non-ferrous metals are used because of desirable properties such as low weight (e.g. aluminium), higher conductivity (e.g. copper), [1] non-magnetic properties or resistance to corrosion (e.g. zinc). [2]

  3. Intermetallic - Wikipedia

    en.wikipedia.org/wiki/Intermetallic

    Post-transition metals, i.e. aluminium, gallium, indium, thallium, tin, lead, and bismuth. Metalloids, e.g. silicon, germanium, arsenic, antimony and tellurium. Homogeneous and heterogeneous solid solutions of metals, and interstitial compounds such as carbides and nitrides are excluded under this definition. However, interstitial intermetallic ...

  4. Interactive Mathematics Program - Wikipedia

    en.wikipedia.org/.../Interactive_Mathematics_Program

    The Interactive Mathematics Program (IMP) is a four-year, problem-based mathematics curriculum for high schools. It was one of several curricula funded by the National Science Foundation and designed around the 1989 National Council of Teachers of Mathematics (NCTM) standards .

  5. Metalworking - Wikipedia

    en.wikipedia.org/wiki/Metalworking

    The oldest archaeological evidence of copper mining and working was the discovery of a copper pendant in northern Iraq from 8,700 BCE. [2] The earliest substantiated and dated evidence of metalworking in the Americas was the processing of copper in Wisconsin, near Lake Michigan.

  6. Khan Academy - Wikipedia

    en.wikipedia.org/wiki/Khan_Academy

    Khan Academy is an American non-profit [3] educational organization created in 2006 by Sal Khan. [1] Its goal is to create a set of online tools that help educate students. [4] The organization produces short video lessons. [5] Its website also includes supplementary practice exercises and materials for educators.

  7. NYT ‘Connections’ Hints and Answers Today, Sunday, December 15

    www.aol.com/nyt-connections-hints-answers-today...

    Spoilers ahead! We've warned you. We mean it. Read no further until you really want some clues or you've completely given up and want the answers ASAP. Get ready for all of today's NYT ...

  8. 8 Overlooked Ways To Fund Your Holiday Purchases

    www.aol.com/finance/8-overlooked-ways-fund...

    Visits shouldn’t take more than 15 minutes, and you could potentially do at least two per hour depending on driving times — more if you book multiple families within the same neighborhood ...

  9. Valerie Bertinelli Fans Have a Request After Her Mariska ...

    www.aol.com/valerie-bertinelli-fans-request-her...

    Valerie Bertinelli fans want the star to make an appearance on 'Law and Order: SVU' after she posted a throwback photo with Mariska Hargitay on Instagram.