Download e-book for iPad: 101 Things You Don't Know About Science and No One Else Does by James Trefil Physics Professor

By James Trefil Physics Professor

ISBN-10: 0395877407

ISBN-13: 9780395877401

James Trefil takes the reader on an exciting travel around the borders of present clinical knowledge-from astronomy to genetics, from info expertise to cosmology, the nice contested questions that preoccupy researchers at the present time and may turn into headlines the next day to come. In stylish, witty three-page summations, Dr. Trefil "makes feel of technological know-how for the remainder of us" (Washington Post).

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Extra resources for 101 Things You Don't Know About Science and No One Else Does Either

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Thus there are behaviors of complex adaptive systems that are easy to predict and behaviors that are more difficult. Aside from the fact that they share this behavior, though, I think we will find that complex systems like sand piles and the human brain have no more in common with each other than simple systems do. < previous page page_43 next page > < previous page page_44 next page > Page 44 How Much of the World Can We Simulate with Computers? Traditionally, there have been two basic branches of science: theory, which attempts to construct mathematical models of the universe, and experiment / observation, whose task is to test theories and to determine the kind of universe we actually live in.

Before this period, animals had no bones or other hard parts from which fossils could form, but impressions of complex life forms (think of them as jellyfish) have been found going back several hundred million years more. And from the time before that, believe it or not, pretty clear evidence for the existence of single-celled organisms has been found. It may come as a surprise to learn that we can detect fossil evidence of organisms as microscopic as bacteria, but paleontologists have been doing just that for some time.

In the same way, the effect of the oceans and their interac < previous page page_45 next page > < previous page page_46 next page > Page 46 tions with the atmosphere are handled poorly. One popular version of the GCM, for example, treats the ocean as if it were a ''swamp"gases are exchanged between air and water, but there are no ocean currents like the Gulf Stream. Again, the ocean in the computer doesn't bear much resemblance to the real ocean. In this case, as with the clouds, the problem is that even the most powerful computers simply can't handle the full complexity of the real earth.

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101 Things You Don't Know About Science and No One Else Does Either by James Trefil Physics Professor


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