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2. Grade (slope) - Wikipedia

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

   Grade is usually expressed as a percentage - converted to the angle α by taking the inverse tangent of the standard mathematical slope, which is rise / run or the grade / 100. If one looks at red numbers on the chart specifying grade, one can see the quirkiness of using the grade to specify slope; the numbers go from 0 for flat, to 100% at 45 ...

3. Naismith's rule - Wikipedia

   en.wikipedia.org/wiki/Naismith's_rule

   Naismith's rule helps with the planning of a walking or hiking expedition by calculating how long it will take to travel the intended route, including any extra time taken when walking uphill. This rule of thumb was devised by William W. Naismith, a Scottish mountaineer, in 1892. [1] [3] [4] A modern version can be formulated as follows:

4. Cumulative elevation gain - Wikipedia

   en.wikipedia.org/wiki/Cumulative_elevation_gain

   The seven peaks of the 'Fitz Roy traverse is one of the hardest mountain traverses with a CAG of circa 4,000 metres (13,000 ft) In cycling, hiking, mountaineering and running, the term cumulative elevation gain (or cumulative gain) is the total of every gain in elevation made throughout a journey.

5. Topographic prominence - Wikipedia

   en.wikipedia.org/wiki/Topographic_prominence

   Contrast between topographic isolation and prominence. In topography, prominence or relative height (also referred to as autonomous height, and shoulder drop in US English, and drop in British English) measures the height of a mountain or hill's summit relative to the lowest contour line encircling it but containing no higher summit within it.

6. Geometric design of roads - Wikipedia

   en.wikipedia.org/wiki/Geometric_design_of_roads

   Carrying capacity is also optimal at a width of 3.0 to 3.1 metres (9.8 to 10.2 ft), both for motor traffic and for bicycles. [8] Throughput is maximal at 18 miles per hour (29 km/h); as lane width decreases to 3.0 to 3.1 metres (9.8 to 10.2 ft), traffic speed diminishes, and so does the interval between vehicles.

7. AOL Mail

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8. Grade (climbing) - Wikipedia

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

   The V-grade (short for "Vermin" or "Verm", and also known as the "Hueco" scale) was first published in 1991 by American bouldering pioneer John "Verm" Sherman in his climbing guidebook, Hueco Tanks Climbing and Bouldering Guide. [14] Legend is that his publisher would not print the book without some kind of rating of his 900 routes. [14]

9. Play Just Words Online for Free - AOL.com

   www.aol.com/games/play/masque-publishing/just-words

   If you love Scrabble, you'll love the wonderful word game fun of Just Words. Play Just Words free online!