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Earth's Inner Core Is Solid, But Squishier Than Previously Thought (abc.net.au)

brindafella writes: Earthquakes are telling scientists more about the core of the Earth, specifically that it is squishier than previously thought (by about 2.5%.) Associate Professor Hrvoje Tkali & Thanh-Son Pham of the Australian National University have made sense of data collected by seismographs around the world to put new numbers on the density and pressure of the core. In Science magazine, they show that the pressure is 167.4 +/- 1.6 gigapascals (GPa) in Earth's center. For reference, standard atmospheric pressure is 101,325 pascals (Pa), so the center of the Earth is around 61 million times this pressure, but still 2.5% lower than expected.

3 of 66 comments (clear)

  1. Predicted over 50 years ago... by unitron · · Score: 4, Interesting

    ...by Laura Petrie on "The Dick Van Dyke Show".

    https://www.youtube.com/watch?...

    15:50

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    I see even classic Slashdot is now pretty much unusable on dial up anymore.

  2. Re:Summary says "101,325 pascals (Pa)" by ShanghaiBill · · Score: 4, Funny

    No shanghai bitch, it's not a popularity contest.

    Ok, lets go by nukes instead. Of the 9 countries known to possess nuclear weapons, 7 use the decimal point.

    The dot wins again.

  3. Re:Units by jd · · Score: 4, Funny

    Figs. One metre of lateral motion when crushed by one Pascal of pressure is one fig. The energy so created is thus measured in fig newtons.

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    It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)