• Technology

    A Molten Blizzard Beneath Mercury's Surface

    By Posted on 5.12.2008 5 Comments

    Mercury's magnetic field is about 100 times weaker than that of the Earth - a curiosity that scientists have been trying to make sense of for years. Recent observations of Mercury's rotation suggest that the planet has a partially molten core, and scientists at the University of Illinois and Case Western Reserve University developed laboratory experiments to model what might be happening beneath the surface.

    5.18.2008 at 08:41pm - Comment by physics1

    plus it makes no sense for there to be a sphere of empty space between the core and crust as the core would be floating in nothingness with a solid body floating around this empty space and the gravitational pull of the core would draw the crust toward it.

  • Technology

    A Molten Blizzard Beneath Mercury's Surface

    By Posted on 5.12.2008 5 Comments

    Mercury's magnetic field is about 100 times weaker than that of the Earth - a curiosity that scientists have been trying to make sense of for years. Recent observations of Mercury's rotation suggest that the planet has a partially molten core, and scientists at the University of Illinois and Case Western Reserve University developed laboratory experiments to model what might be happening beneath the surface.

    5.18.2008 at 08:36pm - Comment by physics1

    this is true because, if there were no central matter, there would be nothing to draw the iron toward the center. Also, it says that convection currents form, meaning it is not just empty space.

  • Technology

    Supermassive Black Hole Takes a Nap

    By Posted on 4.16.2008 5 Comments

    It packs 4 million times more material than our sun, but relative to the black holes sitting at the center of some neighboring galaxies, it actually doesn't do all that much. The fact that this black hole, known as Sagittarius A*, kicks out billions of times less energy than others of its kind has made it something of a mystery. But now a team of scientists at Kyoto University suggests that Sagittarius A* may be resting after a far more active period a few centuries ago.

    5.18.2008 at 08:31pm - Comment by physics1

    true and interesting, however it directly affects none of us.

  • Technology

    The Human Luck of the Draw

    By Posted on 4.18.2008 13 Comments

    We've talked in this space in the past few months about detecting the existence of Earth-like planets in other solar systems, and on the educated guesswork which goes into putting a number on the probability of intelligent life existing out there as well. You may remember that the discovery of terrestrial planets is well on its way as technology improves; and that the Drake equation—with all its assumptions—has proved to be remarkably accurate.

    5.18.2008 at 08:25pm - Comment by physics1

    Spiritof76, while your point makes sense, he was not stating that technology and language do not imply intelligence, but simply that they do not constitute intelligence,



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