Stories
Slash Boxes
Comments

News for nerds, stuff that matters

Slashdot Log In

Log In

Create Account  |  Retrieve Password

How Earth Resembles a Gooey Confection

Posted by timothy on Sun May 04, 2008 01:18 AM
from the distinct-lawyers-of-slime dept.
Ant contributes a link spotted on Neatorama that may upset middle school Earth Science teachers, writing "LiveScience says Earth's simple schematic is not core, mantle, and crust anymore. It is more like the gooey center of a chocolate morsel harboring peanut butter and honey. Inner Earth is far more nuanced than outward appearances would suggest. A new model is proposed in the May 2, 2008, issue of the journal Science."
+ -
story

Related Stories

This discussion has been archived. No new comments can be posted.
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
 Full
 Abbreviated
 Hidden
More
Loading... please wait.
  • by mrbluze (1034940) on Sunday May 04 2008, @01:20AM (#23289454) Journal

    may upset middle school Earth Science teachers, writing
    Not to mention Middle Earth School Science teachers!
  • Yes, but (Score:4, Funny)

    by 427_ci_505 (1009677) on Sunday May 04 2008, @01:20AM (#23289456)
    Where's the cream filling?

    Earth. That's the stuff.
  • it's the only thing it can be. according to "experts" space travel is impossible
    • You're seeing the congealed top layer, and those "craters" are mostly bubbles, though some of them are the mold spots, which is a bit less obvious because it's only lit in black&white (except during eclipses, but even then the reddish lighting isn't the right color for seeing green cheese-mold.)

      But space travel is perfectly possible - you're doing it every time you go into a subway. The Apollo missions were carefully planned to land on the colder harder spots, which is why they didn't sink in.

      Remember,

  • There's an obesity problem in schools already!
  • by Jane Q. Public (1010737) on Sunday May 04 2008, @02:49AM (#23289764)
    from the old model. If it were, it would not match all the old data. We might understand a lot more today, but new theories must not contradict all that factual data of the past! Former scientists were not idiots.
    • Models constantly change as more data is analyzed and experiments are run. That is how Eisenstein replaced Newton, Bohr replaced Rutherford, etc...

      In this case, scientists have to extrapolate a lot from what information they have. How do we truly know the mixture of matter 100-4000 miles below us when the most we can dig is 2 miles? I'm guessing the basics are still the same - average density, average temperature, but otherwise it's always been a bit of guessing (and still is)
        • EISENSTEIN?
          Yeah, Eisenstein was what happened when Heisenberg was merged with Einstein in a horrible teleporter accident. The scientists involved swore to never speak of it in public, and keep the teleporter technology a secret, but I guess there is no putting back the toothpaste into the tube now.
          • "Eisenstein was what happened when Heisenberg was merged with Einstein in a horrible teleporter accident. The scientists involved swore to never speak of it in public"

            That's true: we all swore not to talk about it, so it's not so hard to understand why did you get your facts so wrong. It was not a teleporter but a multistate cat sandbox on the Potemkin battleship.
            • That's true: we all swore not to talk about it, so it's not so hard to understand why did you get your facts so wrong. It was not a teleporter but a multistate cat sandbox on the Potemkin battleship.
              The problem was that they kept the quantum kitty litter in a Klein bottle, when they obviously should have used an infinite square well.
    • Re: (Score:3, Interesting)

      from the old model. If it were, it would not match all the old data. We might understand a lot more today, but new theories must not contradict all that factual data of the past! Former scientists were not idiots.
      Absolutely, but as TFA points out, there were some observations that could not be explained by the old model (like the fact that seismic waves passing through the earth don't always travel at the same speed). Under these circumstances, a new model is justified.
      • Re: (Score:2, Informative)

        I didn't read TFA, but I did read the FSA (fine Science article) itself. Also, IAAGGS (I am a geology grad student.)

        It is not as simple as LiveScience apparently paints it - the low velocity seismic zones are well-known to geologists and have been explained by theory fairly completely.

        Though this isn't what they're talking about, there are different zones of seismic velocity within the layers themselves due to changes in temperature, pressure, and composition of the material, which leads to zones of partial
    • I agree: "Former scientists were not idiots." However, leading scientists used to think data pointed to a geocentric solar system and universe. Clearly there are many more examples like this, some much more modern.

      Perhaps the larger problem is our natural egotism! What we have discovered is "absolute truth", rather than the more reasonable approach of "the best explanation available".
    • Certainly the scientists of old were not idiots - but they also didn't have access to modern instruments, computers, etc... etc... This means that a certain percentage of the old data (and the old theories based on that data) are to some extent invalid due to imprecision.

      For example - until the widespread deployment of GPS, obtaining highly accurate and precise time was expensive. Now, seismometers with accurate and precise clocks can be deployed much more widely and cheaply because all you requir
      • I agree completely. My point was intended as a word of caution, because in recent years I have seen certain "scientific" organizations (the EPA, for example) attempt to completely re-write the past, which is simple not allowable.
  • LiveScience writers are really, really high right now.
  • Bastards! (Score:3, Funny)

    by Quiet_Desperation (858215) on Sunday May 04 2008, @04:39AM (#23290058)
    That's way too close to my theory that the Earth has a tasty nougat center! That's intellectual property, that is!
  • That sounds horrible! Please can we put it back and choose another planet?
  • by SigmaTao (629358) on Sunday May 04 2008, @04:41AM (#23290064) Journal
    don't they mean Mars?
  • by Eudial (590661) on Sunday May 04 2008, @05:27AM (#23290252)
    I believe in the Supersonic Nazi Hell Creatures from Inside the Hollow Earth. If the Earth is truly "solid", how can there be Supersonic Nazi Hell Creatures from Inside the Hollow Earth? There CAN'T! Hah! So the earth MUST be hollow. So much for your wishy washy "science" and "progress".
  • by cheebie (459397) on Sunday May 04 2008, @06:31AM (#23290482)
    Wait, are you trying to tell me the earth is not composed of precisely circular layers colored red, orange, and yellow, with an itty-bitty circle of brown on the outside? Next you'll try telling me there isn't a gigantic wedge-shaped cutout from pole to pole in the pacific ocean.
  • I was taught that the earth, scaled to the size of a pea, has the consistency of toothpaste.

  • Middle Earth school science teachers. I like that.
  • Of course! (Score:4, Funny)

    by mattgoldey (753976) on Sunday May 04 2008, @07:13AM (#23290596) Homepage
    Well of course the planet is like a gooey piece of chocolate candy. Haven't you ever noticed that it's covered in NUTS?

  • by Chris Mattern (191822) on Sunday May 04 2008, @10:01AM (#23291654)
    ...Galactus wants to eat it!
  • Article Envy (Score:4, Insightful)

    by Roxton (73137) <roxton AT gmail DOT com> on Sunday May 04 2008, @10:03AM (#23291676) Homepage
    You know, I appreciate that we need incentives for effective peer review, widespread reproduction, and integrity. One of the most powerful aspects of the Internet, however, is the proliferation of communities of practice.

    Expert photography, graphic design, 3D modeling, and UNIX system administration are all things that used to require intensive training begetting membership in a professional class. Nowadays, you can pick these things up by hanging out and contributing in online forums, newsgroups, mailing lists, and IRC chat channels. These communities of practice learn expert-grade information, but it also allows techniques to evolve and for new techniques to propagate quickly; in this sense, these communities can actually be better than classic forms of learning.

    We're even seeing interesting communities of practice being built up around legal studies, which is a domain that is firmly held by one of the most exclusive professional classes - lawyers. It'll be interesting to see what happens with that in the next five years.

    But one place where communities of practice are being squelched is science. You can't go into a forum and ask, "Hey, the Donovan lab group at Boston University suggests foo in this article [slashdot.org], but that doesn't jibe with Mulkasey's findings at Stanford in this article [slashdot.org]. What's the deal?"
    I mean, you could. But then the number of people who could contribute to the conversation would be tiny, and nobody else would pay attention.

    So here's the position I'm advancing. Communities of practice are the single best way to create a dialog around science, and has the potential to:
    1) Integrate the knowledge of disparate labs
    2) Drive questions in scientific inquiry
    3) Become a major center of debate, and a referencable, living repository of ongoing issues
    4) Generate interest in the sciences
    5) Give direction to students (who see thousands of articles with no coherent "story" to tie them together except for biased and incomplete review articles)
    6) Finally create real connections with the public consciousness in a way that's a million times better than current science journalism.

    The lack of public availability of these articles prevents the creation of these communities of practice.

    PS: I think this approach would make conferences virtually obsolete, except in mode of presentation.
    • No, it doesn't work like that.

      Your successful examples are essentially experimental communities, where discussions can center entirely around facts without interpretation (eg how many pixels in such and such a camera?, etc). That's a low barrier to entry.

      Science is different because most issues are either closely tied with interpretations, or tied to experiments which are too expensive to be duplicated by just anybody anymore. So you can't have the kind of photography club interaction where facts can be

      • Your interpretation assumes that the only thing that is important is that good science gets done. What about informing people who aren't scientists? (Or those who aren't yet scientists?)

        Think about the plight of a high school student who is choosing a college and a degree. If he's like most prospective biology students, he's thinking, "Biology is interesting. I want to study biology." He doesn't stand a chance of thinking, "There are all these fascinating, unanswered questions in the discipline, and I wan
        • You make good points, but they seem to me a little weaker than what you suggested earlier.

          Spreading information is a worthy goal, which historically is the province of journals and magazines. Not all magazines aim to be technically exact, eg Scientific American is a good example of trying to spread inexact information far and wide, with references for those interested in digging deeper.

          What I don't agree with is the idea that shadow communities of enthusiasts, arguing from second hand information in the

          • I think the traditional system of studying for 4 years to get to a level of competence necessary to enter the conversation is a sad legacy. Perhaps legacy is the wrong word -- I think it's actually a more recent phenomenon. I hear professors talk a lot about how when they studied, they were more engaged than the students they see today. Perhaps that's because when they studied, they had goals.

            Four years of open-ended study before you can even think about how your knowledge fits into the big picture? I r
            • Four years? How about seven ;-)

              Four years of open-ended study before you can even think about how your knowledge fits into the big picture? I realize that sounds like hyperbole, but for a lot of students, it's fact.

              I think you're conflating thinking about a picture and contributing to the picture. People can start thinking about the big picture whenever they want: there's books of all levels out there, and it's common for 12 year olds and up to be interested in and discussing the big picture

      • That's really my point, that making the articles accessible is a key first step. I'm not sure what the communities of practice for science would look like, but availability is a prerequisite. I also think we'd see a lot of value fairly quickly in terms of simple things like fact-checking.
  • Does anyone else find it worrisome that our planet's core has obviously been designed so that we roll farther when we hit the fairway?

    • OMNOMNOMNOM!
      • by hayagriva (1260388) on Sunday May 04 2008, @05:28AM (#23290256)
        Damnit, the last thing we needed is to make Galactus more interested in our delicious planet.
        • Exactly what I was thinking. Good to see there are some level-headed people left around here.

          I propose that we immediately start surveying our neighbor planets for their contents. Maybe we find out that Venus is filled with mustard -- we could then arrange it so that Galactus eats Venus first; once he's thoroughly disgusted we tell him that all planets in our solar system are mustard-filled. That might save us.

          It is, however, abundantly clear that we must give NASA the funds to conduct this kind of expl
      • Re: (Score:3, Insightful)

        They may not teach spontaneous generation but they teach spontaneous creation despite all its flaws and assumptions (which aren't discussed of course to keep it the 'perfect' theory). It's called evolution.

        (sigh) I know you're trolling, but I'll bite, anyway.

        Evolution has little to do with the origin of life. You would do well to remember that Darwin called his book "On the Origin of Species", not "On the Origin of Life". I think it's interesting that creationists and intelligent design (sorry, it doesn't merit capitals) advocates try to confuse evolution with the origin of life. Somewhat like trying to say that electricity made no sense when it's ruling equations were unknown. Deal wi

          • Re: (Score:3, Informative)

            Well, I guess Dawkins must have changed his standpoint a bit since 2006 [edge.org]. I quote:

            The origin of life on this planet -- which means the origin of the first self-replicating molecule -- is hard to study, because it (probably) only happened once, 4 billion years ago and under very different conditions from those with which we are familiar. We may never know how it happened. Unlike the ordinary evolutionary events that followed...

            Just two years ago he still stated that the origin of life and evolution were different things. Would you be so kind to point me to references of his conflating both to deny the existence (I'd rather say essence, but that's a Cartesian debate for another day) of God?

        • by Emb3rz (1210286) on Sunday May 04 2008, @07:45AM (#23290728) Homepage

          Sir, your post is all over the place.

          What various anti-intellectuals do not understand is that Theology is about one set of things and Science is about something else.

          You are quite wrong. Christian Theology, the belief in a single sovereign God, having been based on God's written word, is "about" all things pertaining to God's adequacy and right to rule humankind, and therefore includes the origin of everything (and we are an object property of said everything).

          Science is "about" [about.com]

          the universe around us, and that includes us as well. This is why science is naturalistic: it is all about natural processes and natural events. Science involves both description, which tells us what has happened, and explanation, which tells us why it happened.

          So then, you see, both the Bible (which term I will use rather than Theology, since when referencing theology you must be specific as to whose theology) and Science attempt to tell us What has happened: the physical space of the universe came into existence, followed by the stars and other heavenly bodies, geological formations occurred on earth while sitting in the midst of waters, vegetation began to live 'according to its kind,' creatures of the sea began life, then winged creatures of the sky ('heavens'), then living beasts on the surface of the ground; finally, mankind emerged on the scene, was superior to all of these previous lifeforms and was made out of dust (and Science certainly agrees that humans are composed of many of the same elements as dirt).

          They also attempt to tell us Why it happened. The Bible says that God 'created the earth even for it to be inhabited,' or in other words, made the earth as a perfect home to host his creations. Science does not really have an explanation to 'why,' but empirical evidence over thousands of years has proven true the fact that the earth truly is a wonderful home to life on it. Science agrees with this too, in that the placement of the earth relative to the Sun is just right to keep us from freezing and from frying. The combination of gasses that make up our atmosphere are just right to keep everything from being either wholly flammable or toxic to breathe.

          Relegating religionists and promoters of intelligent design to this class you deem 'anti-intellectual' really couldn't be more wrong. If one takes the time to discern what the Bible really says regarding creation, they will find it quite stimulating as well as accurate.

          • It appears that my comment on specific anti-intellectual groups and cults has been seen as an attack on all religeon. There is nothing in evolution that overturns anything but a far too literal interpretation of a few portions of the Bible - unfortunately politics steps in at that point.

            Science is generally as irrelevant to religeon as wondering what sort of coffee Jesus would drink if he turned up tomorrow instead of what he would talk about - it's about details and not messages. Also one of the reasons

          • "So then, you see, both the Bible (which term I will use rather than Theology, since when referencing theology you must be specific as to whose theology)"

            Then I beg you to tell us "whose Bible" too. It's not as if there were only one, you know.
              • I do not have the benefit of shifting definitions and instead used the one in the dictionary.
              • "That would be a good, smug point, had I not already identified the Hebrew and Christian Greek scriptures in my reference to 'Christian Theology.'"

                No, you didn't. Just look for "greek" or "hebrew" on your post: no notion of them. And that's more to my point: you are so "subsumed" by the "my book is *the* book" you are even unconciusly falling in you own trap -to ignore that there're other "books". For one, Theology is not so much about Hebrew and Christian scriptures but about analyzing "the meaning of G
                  • Sir, I wish I had mod points. Additionally, I wish there was a +5, pwn3d, because that's what you just did.

    • Yes, because, you know, the earth's molten core will go cold sometime a few billion years after the sun goes nova.