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  2. Classical element - Wikipedia

    en.wikipedia.org/wiki/Classical_element

    The ancient Greek concept of four basic elements, these being earth (γῆ gê), water (ὕδωρ hýdōr), air (ἀήρ aḗr), and fire (πῦρ pŷr), dates from pre-Socratic times and persisted throughout the Middle Ages and into the Early modern period, deeply influencing European thought and culture.

  3. Traditional mathematics - Wikipedia

    en.wikipedia.org/wiki/Traditional_mathematics

    The Common Core Standards, which have been adopted by most states since 2011, adopt such a mediating position for curricula, requiring students to achieve both procedural fluency and conceptual understanding. The Common Core does not endorse any particular teaching method, but does suggest students solve word problems using a variety of ...

  4. Water - Wikipedia

    en.wikipedia.org/wiki/Water

    The refractive index of liquid water (1.333 at 20 °C (68 °F)) is much higher than that of air (1.0), similar to those of alkanes and ethanol, but lower than those of glycerol (1.473), benzene (1.501), carbon disulfide (1.627), and common types of glass (1.4 to 1.6). The refraction index of ice (1.31) is lower than that of liquid water.

  5. Science in classical antiquity - Wikipedia

    en.wikipedia.org/wiki/Science_in_classical_antiquity

    The Ptolemaic system of celestial motion as depicted in the Harmonia Macrocosmica (1661). Science in classical antiquity encompasses inquiries into the workings of the world or universe aimed at both practical goals (e.g., establishing a reliable calendar or determining how to cure a variety of illnesses) as well as more abstract investigations belonging to natural philosophy.

  6. QVC recalls 1.1 million pairs of oven gloves after users ...

    www.aol.com/qvc-recalls-1-1-million-184754508.html

    The company can be reached at 888-770-7119 from 8:30 a.m. to 6 p.m. Eastern Time Monday through Friday or online at this online recall page. Imaged of recalled oven gloves. / Credit: QVC Inc.

  7. Washington moves to boost crackdown on China Telecom's US ...

    www.aol.com/news/us-moves-boost-crackdown-china...

    The source confirmed a New York Times report that the department last week sent China Telecom Americas a preliminary determination that its presence in U.S. networks and cloud services poses U.S ...

  8. Flour Bugs Are a Real Thing—Here’s an Easy Way to ... - AOL

    www.aol.com/flour-bugs-real-thing-easy-150000385...

    A food safety expert weighs in on flour bugs, also known as weevils, that can infest your pantry after one TikToker found her flour infested with the crawlers.

  9. Mathematics education - Wikipedia

    en.wikipedia.org/wiki/Mathematics_education

    Student teaching is a crucial part of a teacher candidate's path to becoming a teacher. Recommended reform in mathematics teacher education includes a focus on learning to anticipate, elicit, and use students’ mathematical thinking as the primary goal, as opposed to models with an over-emphasis on classroom management and survival. [46]