Land Surveyors use markers as reference points for topographic mapping. Companies such as NRG Surveys will install a series of markers and using specialist measuring equipment will measure the precise 3 dimensional cartesian coordinates of each marker with reference to a network. The network may be a local system where it is assumed the earth is flat for small surveys but for larger surveys a 'projection' is required to accomodate the curvature of the earth. Heights are commonly referred to in relation to the geoid, the equipotential surface of the earth which would coincide exactly with the mean ocean surface, if the oceans were in equilibrium, at rest, and extended through the continents.
a chart
On a survey stake it reads: 5' EC ER TC = Fl. What does this mean?
square iron bar
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Are you sure you don't mean ALTA survey? An ALTA survey is simply a type of survey with certain requirements that may be above and beyond the state's minimum requirements. An ALTA survey may be required by the title insurance company or the lender. ALTA stands for American Land Title Association.
Boundary line
colored pencils
black
Ink, marker coloring, tip, color, and colored liquid.
Brush colored markers are literally markers which make brush strokes. They have feathered tips which simulate a paint brush. Some of them literally have brushes as tips. For quick, casual artwork, they are excellent to experiment with. If you are interested in watercolors, try doing a water wash, then apply these markers for an interesting soft color. They are excellent for experimenting at a very reasonable price.
Yes but it probably isn't good for you.
medium
A DaMath board can be made using heavy cardboard for the base and colored construction paper or colored markers for the markings/decorations.
Yes, there's about 50 other colored markers.
If you mix every color together (crayon, markers, colored pencils), you will get black.
medium
markers