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~ * josie * ~

Does listening to music help you concentrate? | Answerbag.com | Page 3 - 0 views

    • ~ * josie * ~
       
      I HTINK THIS IS VERY INTERSETING BECAUSE I HAVE TH SAME THING . I GET TO INVOLVED WITH THE LYRICS THAT I BECOM EUN FOCUSED ON THE WORK . IW OULD USUALLY HAVE TURN DOWN TO VOLUME SO THAT I COULD BARLY HEAR IT
  • It probably doesn't help me concentrate, but as long as it's just instrumental, it doesn't bother me. With vocal songs, I get too involved in the lyrics.
Minjie Kim

Behaviorism - 0 views

  • philosophical position that says that psychology, to be a science, must focus its attentions on what is observable
    • Minjie Kim
       
      while most psychology is about what is not observable, this states that behaviorism deals with what is. ^.^
  • reflexology, and defined it as the objective study of stimulus-response connections
  • unconditioned stimulus and an unconditioned response -- a reflex
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  • neutral stimulus with the reflex by presenting it with the unconditioned stimulus
  • conditioned response
  • spontaneous recovery strongly suggests that the habit has been there all alone
  • extinction
  • first signal system is where the conditioned stimulus (a bell) acts as a “signal” that an important event is to occur
  • cond signal system is when arbitrary symbols come to stand for stimuli, as they do in human language.
  • The law of exercise
  • The law of effect.
Jilliane Velazco

The music industry | From major to minor | The Economist - 0 views

  • the results from 2007 confirm what EMI's focus group showed: that the record industry's main product, the CD, which in 2006 accounted for over 80% of total global sales, is rapidly fading away.
  • the volume of physical albums sold dropped by 19% in 2007
  • For the first half of 2007, sales of music on CD and other physical formats fell by 6% in Britain, by 9% in Japan, France and Spain, by 12% in Italy, 14% in Australia and 21% in Canada.
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  • “In 2007 it became clear that the recorded-music industry is contracting and that it will be a very different beast from what it was in the 20th century,”
  • Warner Music's share price has fallen to $4.75, 72% lower than its IPO price in 2005
  • They now want to move beyond Apple's iTunes and its paid-for downloads.
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    info about music industries; record labels; cd sales and how they have gone down
Kate L

The Energy Story - Chapter 15: Solar Energy - 0 views

  • Solar energy can also be used to make electricity.
  • solar power plants, like the one in the picture to the right in California's Mojave Desert, use a highly curved mirror called a parabolic trough to focus the sunlight on a pipe running down a central point above the curve of the mirror.
  • mirror focuses the sunlight to strike the pipe
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  • gets so hot that it can boil water into steam
  • team can then be used to turn a turbine to make electricity.
  • California's Mojave desert, there are huge rows of solar mirrors arranged in what's called "solar thermal power plants"
  • this idea to make electricity for more than 350,000 homes
  • problem with solar energy is that it works only when the sun is shining
  • cloudy days and at night, the power plants can't create energy.
  • solar plants, are a "hybrid" technology
  • daytime they use the sun
  • night and on cloudy days they burn natural gas to boil the water so they can continue to make electricity.
  • form of solar power plants to make electricity is called a Central Tower Power Plant, like the one to the right - the Solar Two Project.
  • Sunlight is reflected off 1,800 mirrors circling the tall tower
  • mirrors are called heliostats
  • move and turn to face the sun all day long
  • light is reflected back to the top of the tower in the center of the circle where a fluid is turned very hot by the sun's rays.
  • luid can be used to boil water
  • make steam to turn a turbine and a generator.
  • We can also change the sunlight directly to electricity using solar cells.
  • Solar cells are also called photovoltaic cells
  • PV cells for short
  • be found on many small appliances
  • calculators
  • even on spacecraft
  • first developed in the 1950s for use on U.S. space satellites
  • made of silicon, a special type of melted sand.
  • sunlight strikes the solar cell, electrons (red circles) are knocked loose
  • move toward the treated front surface (dark blue color)
  • electron imbalance is created between the front and back
  • two surfaces are joined by a connector, like a wire, a current of electricity occurs between the negative and positive sides.
  • individual solar cells are arranged together in a PV module and the modules are grouped together in an array.
  • arrays are set on special tracking devices to follow sunlight all day long.
  • electrical energy from solar cells can then be used directly
  • used in a home for lights and appliances
  • in a business
  • Solar energy can be stored in batteries to light a roadside billboard at night
  • energy can be stored in a battery for an emergency roadside cellular telephone when no telephone wires are around.
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    Solar/ thermal energy
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