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Map Terms - C to P

Culture - We're not talking about traditions, beliefs and expression here. With maps it means man-made features on Earth that are symbolized on maps. Some examples are roads, buildings and electricity transmission lines.

Dead Reckoning - This is what a ship or airplane uses to pinpoint their location by using the last recorded location and how fast they are going. Dead reckoning is used when no other way of finding out your location is possible.

Degree - A unit used to measure latitude and longitude.

Elevation - How high a point or an object is above or below a datum (a reference point on the surface) - usually sea level. Elevation is also called altitude or height.

Equator - Also known as the equinoctial line. This is an imaginary circle around Earth, halfway from the poles and perpendicular to the Earth's axis of rotation. It divides the Earth in half into the Northern Hemisphere and the Southern Hemisphere.

The equator divides the Northern Hemisphere and the Southern HemisphereThe equator divides the Northern Hemisphere and the Southern Hemisphere

Great Circle Route - The shortest distance between two points on an almost perfectly round surface (like Earth).

Greenwich Meridian - This is an imaginary line of longitude - it's also the 0 degree meridian. It is used as a reference to measure longitude east and west. It passes through Greenwich, England. It's also called the prime or international meridian.

Intersect - To cut across or overlap. Circles sometimes intersect each other on a map.

Latitude - The angular distance in degrees, minutes and seconds measured from the center of the Earth to a point north and south of the Equator. It's a system used to locate positions on Earth.

Legend - Your map is covered in symbols, lines and other strange figures. The legend is a short description of these symbols and figures so you can read what info is provided. It's usually in the margin.

Linear Feature - All those lines on your map are symbols and are important. Roads, rivers, railways and boundaries are examples of linear features.

Magnetic North - This is the direction a compass needle points. The Magnetic North Pole is slightly north of the Northwest Territories, Canada. Also see True North.

Nautical Mile - How distance is measured over water. It is the unit of length used to define the knot (speed of one nautical mile per hour) used by ships and airplanes. A nautical mile is 6,076.1 feet (1,852 meters). A statute or 'normal' mile is 5,280 feet (about 1.60935 kilometers).

Nautical MileNautical Mile

Navigation - How a vessel or airplane is able to get from one place to another. There are tons of different ways to do this including Global Positioning System (GPS), astronomical, Doppler, acoustic, ESP, etc. Okay, maybe not ESP.

North Pole - Located 90 degrees north in the Northern Hemisphere where the Earth's axis of rotation crosses the surface of the Earth. Also called the Arctic.

Parallels - Circles on a globe that are horizontal or parallel to the Equator. All the points have the same latitude. Parallels run in an east-west direction.

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Which Planet Is Your Favorite?

  • Saturn, I like the rings.
  • Pluto, it sounds cute.
  • Earth, I live here and I like it
  • Mercury, it's nice and warm

General In The Forums

Tennis123
Tennis123 posted in Debating:
anyone who honestly believes the earth is flat, please add me so we can have a private 1 on 1 conversation about this.
reply 27 minutes
Tennis123
Tennis123 posted in Debating:
a college degree means literally nothing. and lets see the moons shadows, timezones, the horizon, the fact that you can see farther when you are higher up, hurricanes (because of the earth spinning), need i go on?
reply 36 minutes
unicornsrule626
"Tennis123" wrote: then that kinda proves your aren't logical. do you honestly think some youtube video with a conspiracy theory nut holds more merit than scientific fact and evidence? What if that ' conspiracy theory nut' holds a college degree? Would that make you believe them? AND WHAT EVIDENCE DO YOU HAVE THAT THE EARTH IS ROUND? You can't see it with your own eyes! Unless CGI pictures count....
reply about 1 hour
Tennis123
Tennis123 posted in Debating:
then that kinda proves your aren't logical. do you honestly think some youtube video with a conspiracy theory nut holds more merit than scientific fact and evidence?
reply about 1 hour
CaptJolee
CaptJolee posted in Debating:
"Tennis123" wrote: "CaptJolee" wrote: "Tennis123" wrote: i would like to point out that theres a difference between having an open mind and believing crazy stuff because of willful or unintentional scientific and factual ignorance. youtube videos made by conspiracy theorists are not a very good source of information. I honestly think that if you believe the earth is flat, there is something fundamentally wrong with your way of thinking and how you decide whats true and whats not. so what your saying is that if we believe in the flat earth we have some kind of mental problem??? what I'm saying is that you're not a logical person and are easily manipulated if you do.   well im quite the opposite since i research both side of the theory by looking at even the debunks
reply about 2 hours