Reading+Log+1

I. Pre-reading: a. What do you know about the chaos theory? Not really that much, __it comes to my mind a few ideas__ **order **but they are a little disperse.
 * Better.. You put a little more love into this homework than the one you gave to the previous one... ** [[image:Love.gif]]

b. What do you think the text will be about? I think __its goin__ to be a short description of what the chaos theory is, and what posible effects on reality it has.

c. Write a list of five words (minimum) that you think you can find in the text you will read. Order,disorder,chaos,reality,consequences.

II. Reading: 1. Read the text and check if you can find any of the words you wrote in your list (the one you wrote in the pre-reading, letter c.) The only word __i__ saw from the one__s i__ selected is: chaos.

2. Underline all the definitions you find in the text. Chaos Theory,__theory describing the complex and unpredictable motion or dynamics of systems that are sensitive to their initial conditions__. Chaotic systems are mathematically deterministic—that is, they follow precise laws, but their irregular behavior can appear to be random to the casual observer. Chaotic behavior is common in systems as varied as  electric circuits, measles outbreaks, lasers , clashing gears , heart, rhythms, electrical brain activity, circadian rhythms, fluids, animal populations, and chemical reactions. It is suspected that even economic systems, such as the stock exchange, may be chaotic. The field of chaos is evolving rapidly from a theoretical to an applied science. The dynamic nature of the universe has led to a great deal of scientific research dedicated to analyzing change. Until recently, it was believed that if the dynamics of a system behaved unpredictably, it was due to random external influences. Therefore, scientists concluded that if random influences could be eliminated, then the behavior of all such deterministic systems could be predicted indefinitely. It is now known that __many systems can exhibit long-term unpredictability even in the absence of random influences. Such systems are called chaotic.__ Even very simple systems, such as a pendulum, exhibit chaos. The unpredictability of chaotic systems arises due to their sensitivity to their initial conditions, such as their initial position and velocity. Two identical chaotic systems set in motion with slightly different initial conditions can quickly exhibit motions that are quite different. French mathematician H enri Poincaré concluded that he could not prove the solar system to be completely predictable. He was the first to state the defining feature of what later became known as chaos: “It may happen that small differences in the initial conditions produce very great ones in the final phenomena. A small error in the former will produce an enormous error in the latter. Prediction becomes impossible.…” The ramifications of Poincaré's discovery were not fully appreciated by most scientists until computers allowed them to easily model and visualize chaotic systems. Before then, however, pioneering scientists and engineers at the National Aeronautics and Space Administration used Poincaré's work to send people and satellites into orbit. Edward Lorenz, an American meteorologist, discovered in the early 1960s that a simplified computer model of the weather demonstrated extreme sensitivity to the initial measured state of the weather (see Meteorology ). He demonstrated visually that there was structure in his chaotic weather model that, when plotted in three dimensions, fell onto a butterfly-shaped fractal set of points of a type now known as a strange attractor. Lorenz rediscovered chaos and proved that long-range forecasting of the weather was impossible. **you missed the definition of Pluto **

3. In the definitions: Mark the term being defined, the general class words and the characteristics of the terms. A-. Chaos Theory B-. Theory C-. describe the complex and unpredictable motion or dynamics of systems that are sensitive to their initial conditions

A-. Chaotic Systems B-. Systems C-. exhibit long-term unpredictability even in the absence of random influences **Good ** 4. Find the descriptions if any.

Chaos Theory,theory describing the complex and unpredictable motion or dynamics of systems that are sensitive to their initial conditions. __Chaotic systems are mathematically deterministic—that is, they follow precise laws, but their irregular behavior can appear to be random to the casual observer. Chaotic behavior is common in systems as varied as__ __ electric circuits, measles outbreaks, lasers , clashing gears , heart, rhythms, electrical brain activity, circadian rhythms, fluids, animal populations, and chemical reactions __. It is suspected that even economic systems, such as the stock exchange, may be chaotic. The field of chaos is evolving rapidly from a theoretical to an applied science. The dynamic nature of the universe has led to a great deal of scientific research dedicated to analyzing change. Until recently, it was believed that if the dynamics of a system behaved unpredictably, it was due to random external influences. Therefore, scientists concluded that if random influences could be eliminated, then the behavior of all such deterministic systems could be predicted indefinitely. It is now known that many systems can exhibit long-term unpredictability even in the absence of random influences. Such systems are called chaotic__.__ Even very simple systems, such as a pendulum, exhibit chaos. __The unpredictability of chaotic systems arises due to their sensitivity to their initial conditions, such as their initial position and velocity__. Two identical chaotic systems set in motion with slightly different initial conditions can quickly exhibit motions that are quite different. French mathematician H enri Poincaré concluded that he could not prove the solar system to be completely predictable. He was the first to state the defining feature of what later became known as chaos: “It may happen that small differences in the initial conditions produce very great ones in the final phenomena. A small error in the former will produce an enormous error in the latter. Prediction becomes impossible.…” The ramifications of Poincaré's discovery were not fully appreciated by most scientists until computers allowed them to easily model and visualize chaotic systems. Before then, however, pioneering scientists and engineers at the National Aeronautics and Space Administration used Poincaré's work to send people and satellites into orbit. Edward Lorenz, an American meteorologist, discovered in the early 1960s that a simplified computer model of the weather demonstrated extreme sensitivity to the initial measured state of the weather (see Meteorology ). He demonstrated visually that there was structure in his chaotic weather model that, when plotted in three dimensions, fell onto a butterfly-shaped fractal set of points of a type now known as a strange attractor. Lorenz rediscovered chaos and proved that long-range forecasting of the weather was impossible.

5. Find what the following referents, underlined in the sentences below, refer to in the text. Be careful some items more contain more than one referent:

a-.chaotic systems. b-.unpredictably behave. c-.initial conditions, consequences. d-. the scientists. e-. the weather system. 6. What new aspects did you discover about the chaos theory? To be honest __i__ dint know much about it but what really surprised me was how can system be unpredictable, i have allways think that if you can control all variables that affect any problem you are able to predict the result of it. and the verb think is in the wrong tense... ** 7. Is the chaos theory related to real life aspects? Explain Yes, They name several examples of some real life system**S ** that may be chaotic system**S ** such as the  electric circuits, measles outbreaks, lasers , etc.
 * "I" Should be always in capital letters **
 * didn't has an apostrophe **
 * <span style="color: #980698; font-family: Georgia,serif;">spelling problems