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Pressure to powerpoint

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  • http://www.google.com/search?q=define+atmospheric+pressure&aq=f&oq=define+atmospheric+pressure&sugexp=chrome,mod=0&sourceid=chrome&ie=UTF-8#hl=en&safe=off&q=atmospheric+pressure&tbs=dfn:1&tbo=u&sa=X&ei=pz6PUL-XM5DbigLxooGgAw&ved=0CB4QkQ4&bav=on.2,or.r_gc.r_pw.r_qf.&fp=80d93921fbad9d7e&bpcl=36601534&biw=1366&bih=643http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/fw/prs/def.rxml
  • http://weather.about.com/od/weatherinstruments/a/barometers.htmhttp://inventors.about.com/od/tstartinventors/a/Barometer.htm
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  • http://inventors.about.com/od/tstartinventors/a/Barometer.htmhttp://www.stormdebris.net/Aneroid_Barometer.html
  • http://geography.about.com/od/climate/a/highlowpressure.htm
  • http://www.coldenergyllc.com/technology.htmlhttp://peswiki.com/index.php/Directory:Barometric_Pressure_Powerhttp://www.coldenergyllc.com/ACMPatent.pdf
  • Transcript

    • 1. Alex Aylward
    • 2. What is atmospheric pressure? The pressure exerted by the weight of the atmosphere. At sea level this pressure has a mean value of 101,325 Pascals (roughly 14.6959 pounds per square inch). Atmospheric pressure may be measured using a barometer.
    • 3. What is a barometer? A barometer is a device used for measuring atmospheric or barometric pressure. The pressure acts on the basin containing liquid driving the mercury levels in the tube up or down. Evangelista Torricelli, an Italian physicist, developed the first mercury barometer in 1643.
    • 4. Cox’s timepiece James Cox working with John Joseph Merlin developed a timepiece running on changing barometric pressure in the 1760s. A mercury barometer was used to power this device. James Cox was an entrepreneur and a goldsmith.
    • 5. Aneroid Barometers Aneroid barometers were invented by French scientist Lucien Viddie in 1843. An aneroid barometer is another form of barometer that functions without using liquids. Aneroid barometers use a small sealed cell composed of beryllium and copper to measure changing pressure.
    • 6. More about atmospheric pressure Changing atmospheric pressures are responsible for our winds and weather patterns. Elevation and uneven temperatures affect pressure levels. Areas of high pressure will flow to areas of low pressure.
    • 7. Cold Energy, LLC In 2004 Cold Energy, LLC obtained a patent for a device deriving its power from differing atmospheric pressures in geographically spaced locations. The idea involves running a pipeline from an area of relatively high pressure to an area of relatively low pressure allowing air to flow through this pipeline. These winds are capable of generating 1,000 to 1,400 Megawatts of electricity. This is enough to power to 250,000 5 Kilowatt homes.
    • 8. Conclusion Barometric pressure is a viable and clean source of renewable energy.