Alex Aylward
What is atmospheric pressure? The pressure exerted by the weight of the atmosphere. At sea level this pressure has a mea...
What is a barometer? A barometer is a device used for measuring atmospheric or barometric pressure. The pressure acts o...
Cox’s timepiece James Cox working with John Joseph Merlin developed a timepiece running on changing barometric pressure ...
Aneroid Barometers Aneroid barometers were invented by French scientist Lucien Viddie in 1843. An aneroid barometer is ...
More about atmospheric pressure Changing atmospheric pressures are responsible for our winds and weather patterns. Elev...
Cold Energy, LLC In 2004 Cold Energy, LLC obtained a patent for a device deriving its power from differing atmospheric ...
Conclusion Barometric pressure is a viable and clean source of renewable energy.
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Pressure to powerpoint

Published on: Mar 4, 2016
Source: www.slideshare.net


Transcripts - Pressure to powerpoint

  • 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.

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