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  2. Dew point - Wikipedia

    en.wikipedia.org/wiki/Dew_point

    The dew point temperature equals the air temperature when the air is saturated with water; in all other cases the dew point will be less than the air temperature. [ 5 ] : 129 In technical terms, the dew point is the temperature at which the water vapor in a sample of air at constant barometric pressure condenses into liquid water at the same ...

  3. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    This is not the usual way to specify slope; this nonstandard expression follows the sine function rather than the tangent function, so it calls a 45 degree slope a 71 percent grade instead of a 100 percent. But in practice the usual way to calculate slope is to measure the distance along the slope and the vertical rise, and calculate the ...

  4. 2 Degrees Will Change The World - The Huffington Post

    data.huffingtonpost.com/2015/11/two-degrees-will...

    World leaders are meeting in Paris this month in what amounts to a last-ditch effort to avert the worst ravages of climate change. Climatologists now say that the best case scenario — assuming immediate and dramatic emissions curbs — is that planetary surface temperatures will increase by at least 2 degrees Celsius in the coming decades.

  5. Wet-bulb temperature - Wikipedia

    en.wikipedia.org/wiki/Wet-bulb_temperature

    The wet-bulb temperature is the lowest temperature that may be achieved by evaporative cooling of a water-wetted, ventilated surface.. By contrast, the dew point is the temperature to which the ambient air must be cooled to reach 100% relative humidity assuming there is no further evaporation into the air; it is the temperature where condensation (dew) and clouds would form.

  6. Trump signs executive order directing US withdrawal from the ...

    lite-qa.aol.com/entertainment/story/0001/...

    The world is now long-term 2.3 degrees Fahrenheit (1.3 degrees Celsius) above mid-1800s temperatures. Most but not all climate monitoring agencies said global temperatures last year passed the warming mark of 2.7 degrees Fahrenheit, and all said it was the warmest year on record. The withdrawal process from the Paris accord takes one year.

  7. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    Thus, in the above example, after an increase and decrease of x = 10 percent, the final amount, $198, was 10% of 10%, or 1%, less than the initial amount of $200. The net change is the same for a decrease of x percent, followed by an increase of x percent; the final amount is p (1 - 0.01 x )(1 + 0.01 x ) = p (1 − (0.01 x ) 2 ) .

  8. Degree of reaction - Wikipedia

    en.wikipedia.org/wiki/Degree_of_Reaction

    Stage having reaction less than half suggest that pressure drop or enthalpy drop in the rotor is less than the pressure drop in the stator for the turbine. The same follows for a pump or compressor as shown in Figure 6. From the relation for degree of reaction, | | α2 > β3. Figure 7. Velocity triangle for reaction more than 50%.

  9. Americans are becoming less religious. None more than ... - AOL

    www.aol.com/americans-becoming-less-religious...

    Americans have been disaffiliating from organized religion over the past few decades. About 63% of Americans are Christian, according to the Pew Research Center, down from 90% in the early 1990s. ...