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  2. At sign - Wikipedia

    en.wikipedia.org/wiki/At_sign

    In (especially English) scientific and technical literature, @ is used to describe the conditions under which data are valid or a measurement has been made. E.g. the density of saltwater may read d = 1.050 g/cm 3 @ 15 °C (read "at" for @), density of a gas d = 0.150 g/L @ 20 °C, 1 bar, or noise of a car 81 dB @ 80 km/h (speed).

  3. 27th parallel south - Wikipedia

    en.wikipedia.org/wiki/27th_parallel_south

    The 27th parallel south is a circle of latitude that is 27 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, Africa, the Indian Ocean, Australasia, the Pacific Ocean and South America. At this latitude the sun is visible for 13 hours, 52 minutes during the December solstice and 10 hours, 24 minutes during the June ...

  4. North American Datum - Wikipedia

    en.wikipedia.org/wiki/North_American_Datum

    These are the defining dimensions for NAD 27, but Clarke actually defined his 1866 spheroid as a = 20,926,062 British feet, b = 20,855,121 British feet. The conversion to meters uses Clarke's 1865 inch-meter ratio of 39.370432. The length of a foot or meter at the time could not practically be benchmarked to better than about 0.02 mm. [11]

  5. CA 27-29 - Wikipedia

    en.wikipedia.org/wiki/Ca_27-29

    CA 27.29 is a tumor marker for breast cancer. [1] ... 27 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; ...

  6. Wanda Sykes Has Stage 0 Breast Cancer—Here's What That Means

    www.aol.com/wanda-sykes-stage-0-breast-132500441...

    Swapna Ghanta, MD, a breast surgical oncologist at Stamford Health, says the term stage 0 can, understandably, seem confusing since the zero implies there’s no cancer. But make no mistake, stage ...

  7. List of integer sequences - Wikipedia

    en.wikipedia.org/wiki/List_of_integer_sequences

    "subtract if possible, otherwise add": a(0) = 0; for n > 0, a(n) = a(n − 1) − n if that number is positive and not already in the sequence, otherwise a(n) = a(n − 1) + n, whether or not that number is already in the sequence.

  8. Interstate 27 - Wikipedia

    en.wikipedia.org/wiki/Interstate_27

    The old main road through the city, between exits 20 and 22, is now Loop 369; I-27 passes through 1.5 blocks to the east. Despite I-27's location north of Abernathy, 0.5 miles (0.80 km) west of the rail line, all interchanges between Abernathy and Hale Center, except the one at FM 54 (exit 24), use the same configuration where the intersecting ...

  9. Mortgage and refinance rates for Jan. 27, 2025: Average ... - AOL

    www.aol.com/finance/mortgage-and-refinance-rates...

    A mortgage point could cost 1% of your mortgage amount, which means about $5,000 on a $500,000 home loan, with each point lowering your interest rate by about 0.25%, depending on your lender and loan.