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  2. Grade (slope) - Wikipedia

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

    Slope may still be expressed when the horizontal run is not known: the rise can be divided by the hypotenuse (the slope length). 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 ...

  3. Process duct work - Wikipedia

    en.wikipedia.org/wiki/Process_Duct_Work

    Duct slopes level to 30 degrees, 25% of cross section. Duct slopes, 30 degrees to 45 degrees, 15% of cross section; Duct Slopes, 45 degrees to 85 Degrees, 5%; Above 85 degrees, a 2 in (50 mm) interior coating of dust. These loads are always confirmed with the client, before use, but the above in US common practice

  4. Tape correction (surveying) - Wikipedia

    en.wikipedia.org/wiki/Tape_correction_(surveying)

    For a 30 meter long tape with standard temperature of 20 °C used at 40 °C, the change in length is 7 mm over the length of the tape. Correction due to sag [ edit ]

  5. Watch avalanche barrel toward drivers on Utah roadway as snow ...

    www.aol.com/watch-avalanche-barrel-toward...

    Footage captured by a driver shows the avalanche as it cascades down the mountain slope toward vehicles on the 13-mile road stretch. Nobody is believed to have been hurt. Video shows avalanche ...

  6. Seeing the number 1212 everywhere? Here's what it might mean

    www.aol.com/seeing-number-1212-everywhere-heres...

    According to numerologists, angel number 1212 suggests harmony and balance are ahead. It's about trusting yourself, and accepting changes with an open mind.

  7. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    As "percent" it is used to describe the grade or slope, the steepness of a road or railway, formula for which is 100 × ⁠ rise / run ⁠ which could also be expressed as the tangent of the angle of inclination times 100. This is the ratio of distances a vehicle would advance vertically and horizontally, respectively, when going up- or ...

  8. US military appeals court says plea deals related to 9/11 ...

    www.aol.com/news/us-military-appeals-court-says...

    A U.S. military appeals court has ruled that plea deals related to the man accused of masterminding the Sept. 11, 2001, attacks and two accomplices can proceed after Defense Secretary Lloyd Austin ...

  9. Geometric design of roads - Wikipedia

    en.wikipedia.org/wiki/Geometric_design_of_roads

    [citation needed] A lower slope of 4% is commonly used on urban roadways where speeds are lower, and where a steeper slope would raise the outside road edge above adjacent terrain. [5] The equation for the desired radius of a curve, shown below, takes into account the factors of speed and superelevation (e).