I personally don't like windy days. However, the wind might help us more than we think. We could use wind to produce energy. This is what wind turbines do and I will now study them to determine the physics involved and how they work, their history, as well as some statistics from the United States. Next, I will take an in-depth look at wind turbines in Texas, Washington, and Kansas and compare them. The physics of wind turbines Physics is involved in these wind turbines because they transform wind into mechanical energy and then electricity. The energy produced depends on the air volume, density and wind speed. Mass per unit time is mass times density times wind speed or m = mass, p = density, A = area and v = wind speed; m = pAV. Because the function of the wind turbine is to transform the kinetic energy of the wind into electricity, the kinetic energy equation is necessary; KE = ½ mv2 or kinetic energy is half the mass times the speed squared. Then, using substitution, the wind power depends on the air density, the area swept by the rotors and the cube of the speed or ½ pAV3. Using Betz's law, the theoretical energy model to extract 59% of the energy is power = 16/27 (½ pAV3). The power passed through or created by wind energy is ½ pAv3. However, not all the energy can be captured, because that would mean the wind would have to be still, absolutely non-existent, which is impossible when the wind triggers the whole process. It is therefore necessary to find the maximum theoretical power. To find the power, take the kinetic energy coming in through the wind turbine minus the kinetic energy going out. Then, using three different areas, we can find the constant rate of ...... middle of article ...... published August 11, 2009, cited October 3, 2010]. [about 5 paragraphs]. Available at: http://green.blogs.nytimes.com/2009/08/11/raising-wind-output-with-longer-blades/American Wind Energy Association [Internet]. AWEA c 2009. US Wind Energy Projects-Kansas [updated June 1, 2006, accessed October 2, 2010]. [about 3 lines]. Available at: http://www.awea.org/projects/Projects.aspx?s=KansasUnrhuh C, Leiker D. [Internet]. cJ.SSW Aber. Kansas Wind Energy. [last updated November 2009, accessed October 3, 2010]. [about 1 paragraph]. Available at: http://www.geospectra.net/kite/ks_wind/ks_wind.htmMcDermott M. [Internt]. TreeHugger.com :c 2010. Largest wind farm in Kansas. originally from Science and Technology [published October 3, 2008, cited October 3, 2010]. [about 1 paragraph]. Available at: http://www.treehugger.com/files/2008/10/largest-wind-farm-kansas-built-by-italian-developer.php