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  2. Military Grid Reference System - Wikipedia

    en.wikipedia.org/wiki/Military_Grid_Reference_System

    The Military Grid Reference System (MGRS) [1] is the geocoordinate standard used by NATO militaries for locating points on Earth. The MGRS is derived from the Universal Transverse Mercator (UTM) grid system and the Universal Polar Stereographic (UPS) grid system, but uses a different labeling convention.

  3. Section (United States land surveying) - Wikipedia

    en.wikipedia.org/wiki/Section_(United_States...

    One of the reasons for creating sections of 640 acres (260 ha) was the ease of dividing into halves and quarters while still maintaining a whole number of acres. A section can be halved seven times in this way, down to a 5-acre (2 ha) parcel, or half of a quarter-quarter-quarter section—an easily surveyed 50-square-chain (2 ha) area. This ...

  4. Grade (slope) - Wikipedia

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

    This is commonly used in Europe to denote the incline of a railway. It is sometimes written as mm/m or m/km instead of the ‰ symbol. [1] [2] as a ratio of one part rise to so many parts run. For example, a slope that has a rise of 5 feet for every 1000 feet of run would have a slope ratio of 1 in 200.

  5. Simple actions can make a big difference to protect homes ...

    www.aol.com/simple-actions-big-difference...

    Instead, make the last five feet of a fence metal. Removing jute or other flammable doormats, brooms on the porch, flammable outdoor furniture within 5 feet of the house. "It's shocking how easy ...

  6. How to watch the Quadrantid meteor shower as it peaks - AOL

    www.aol.com/weather/watch-quadrantid-meteor...

    Both the constellation and the shower are named after an instrument called the quadrant, which was once used to measure the altitudes of stars and other bodies in the night sky. (Photo credit ...

  7. Railway semaphore signal - Wikipedia

    en.wikipedia.org/wiki/Railway_semaphore_signal

    The advantage of the upper-quadrant signal is that should the signal wire break, or the signal arm be weighed down by snow (for instance), gravity will tend to cause the signal to drop to the safe "danger" position. In a lower-quadrant signal, the opposite may happen, sending the signal to "off" when in fact it should be illustrating "danger".

  8. ‘Migration’ Review: After a Streak of Four-Quadrant Crowd ...

    www.aol.com/migration-review-streak-four...

    Instead, it’s Chef’s pet/captive parrot Delroy (Keegan-Michael Key) who steals this segment. Delroy hails from Jamaica, and with his help, the ducks should eventually be able to find their way ...

  9. Quadrant roadway intersection - Wikipedia

    en.wikipedia.org/wiki/Quadrant_roadway_intersection

    A quadrant roadway intersection adds an additional "quadrant roadway" between two legs of an intersection. This roadway adds two three-way intersections in addition to the original four-way intersection, moving all left turns (in right-hand traffic countries) or right turns (in left-hand traffic countries) from the main intersection.