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  2. Air (classical element) - Wikipedia

    en.wikipedia.org/wiki/Air_(classical_element)

    In ancient Greek medicine, each of the four humours became associated with an element. Blood was the humor identified with air, since both were hot and wet. Other things associated with air and blood in ancient and medieval medicine included the season of spring, since it increased the qualities of heat and moisture; the sanguine temperament (of a person dominated by the blood humour ...

  3. Table of specific heat capacities - Wikipedia

    en.wikipedia.org/wiki/Table_of_specific_heat...

    A Assuming an altitude of 194 metres above mean sea level (the worldwide median altitude of human habitation), an indoor temperature of 23 °C, a dewpoint of 9 °C (40.85% relative humidity), and 760 mmHg sea level–corrected barometric pressure (molar water vapor content = 1.16%).

  4. Air mass - Wikipedia

    en.wikipedia.org/wiki/Air_mass

    The qualities of arctic air are developed over ice and snow-covered ground. Arctic air is deeply cold, colder than polar air masses. Arctic air can be shallow in the summer, and rapidly modify as it moves equatorward. [8] Polar air masses develop over higher latitudes over the land or ocean, are very stable, and generally shallower than arctic air.

  5. Copper - Wikipedia

    en.wikipedia.org/wiki/Copper

    The maximum possible current density of copper in open air is approximately 3.1 × 10 6 A/m 2, above which it begins to heat excessively. [17] Copper is one of a few metallic elements with a natural color other than gray or silver. [18] Pure copper is orange-red and acquires a reddish tarnish when exposed to air.

  6. Inside Capitol Hill's Latest UFO Hearings

    www.aol.com/inside-capitol-hills-latest-ufo...

    A mericans had a pandemic on their minds back in 2020 when then-President Donald Trump signed a $2.3 trillion COVID-19 relief bill that stimulated the slack economy and averted a government ...

  7. Polyurethane - Wikipedia

    en.wikipedia.org/wiki/Polyurethane

    Polyurethane synthesis, wherein the urethane groups −NH−(C=O)−O− link the molecular units A kitchen sponge made of polyurethane foam . Polyurethane (/ ˌ p ɒ l i ˈ jʊər ə ˌ θ eɪ n,-j ʊəˈr ɛ θ eɪ n /; [1] often abbreviated PUR and PU) refers to a class of polymers composed of organic units joined by carbamate (urethane) links.

  8. The best Cyber Monday appliance deals at Home Depot ... - AOL

    www.aol.com/lifestyle/the-best-cyber-monday...

    Save up to 50% off major appliances including deep freezers, ranges and cooktops at Best Buy through Dec. 2. We're eyeing this 4-door Samsung refrigerator and ice maker combo.

  9. Stock market today: S&P 500, Dow end at record as ... - AOL

    www.aol.com/stock-market-today-p-500-212111626.html

    Warmer air on the way to Northeast, but to be accompanied by rain, ice and snow. Weather. AccuWeather. Windy storm at midweek to be more wet than white in the Northeast. Advertisement.