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

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 medical knowledge-from astronomy to genetics, from info know-how to cosmology, the nice contested questions that preoccupy researchers at the present time and should develop into headlines day after today. In dependent, witty three-page summations, Dr. Trefil "makes experience 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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More directly, the large literature of sophisticated studies of twins clearly demonstrate the importance of genetic factors in mental disease and a < previous page page_21 next page > < previous page page_22 next page > Page 22 range of behavioral traits from the vocational interests of adolescents to general cognitive ability. Such studies generally look at either identical twins, who have identical DNAparticularly identical twins raised in different environmentsor at fraternal twins, who have different DNA but very similar environments.

This seems to bear out the current theory among linguists that the brain is ''hard-wired" to do language and that different languages are like different programs that run on the same hardware. The ultimate goal of the fMRI and PET programs is to produce a map of the entire cerebral cortex, showing which regions and combinations of regions are involved in carrying out which mental tasks. The idea is that when you engage in any mental activity, from seeing green to thinking about a walrus in your bathtub, the mappers will be able to tell you exactly which parts of your cortex are involved.

A complex adaptive system is one that has many different parts, each of which can change and interact with all the others, and one that as a whole can respond to its environment. The brain can be thought of as a complex adaptive system, as can economic systems in societies and even some large molecules. The general tool for studying complex adaptive systems is the computer model. There are all sorts of computer simulations (many bearing an uncanny resemblance to commercial computer games) that can model the ability of complex systems to grow, change, and adapt to different environments.

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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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