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2. Magnetic declination - Wikipedia

   en.wikipedia.org/wiki/Magnetic_declination

   The angle between magnetic and grid meridians is called grid magnetic angle, grid variation, or grivation." [ 1] By convention, declination is positive when magnetic north is east of true north, and negative when it is to the west. Isogonic lines are lines on the Earth's surface along which the declination has the same constant value, and lines ...

3. Road signs in the United States - Wikipedia

   en.wikipedia.org/wiki/Road_signs_in_the_United...

   Regulatory signs. Regulatory signs give instructions to motorists, pedestrians, and cyclists. Signs including Stop, Yield, No Turns, No Trucks, No Parking, No Stopping, Minimum Speed, Right Turn Only, Do Not Enter, Weight Limit, and Speed Limit are considered regulatory signs.

4. United States Numbered Highway System - Wikipedia

   en.wikipedia.org/wiki/United_States_Numbered...

   The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these highways were coordinated among the states, they are sometimes called Federal Highways, but the roadways ...

5. Magnetic deviation - Wikipedia

   en.wikipedia.org/wiki/Magnetic_deviation

   The first is magnetic declination or variation—the angular difference between magnetic North (the local direction of the Earth's magnetic field) and true North. [1] The second is magnetic deviation —the angular difference between magnetic North and the compass needle due to nearby sources of interference such as magnetically permeable ...

6. North magnetic pole - Wikipedia

   en.wikipedia.org/wiki/North_magnetic_pole

   The north magnetic pole, also known as the magnetic north pole, is a point on the surface of Earth's Northern Hemisphere at which the planet's magnetic field points vertically downward (in other words, if a magnetic compass needle is allowed to rotate in three dimensions, it will point straight down). There is only one location where this ...

7. 'Gang signs' lead to assault by truck - AOL

   www.aol.com/gang-signs-lead-assault-truck...

   May 31—An Odessan who said he purposely reversed into a SUV because the people in the Toyota RAV-4 were flashing gang signs at him is now facing felony charges. According to an Odessa Police ...