Longitude
Longitude
It's either Latitude & Longitude or the Prime Meridian
The imaginary line that extends straight out from the center of a reflective surface is the optical axis.
The imaginary line that extends straight out from the center of a reflective surface is the optical axis.
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The Prime Meridian is an imaginary line that runs north and south at 0 degrees longitude. It serves as the starting point for measuring east and west location coordinates on the Earth's surface.
The imaginary line that connects the North Pole to the South Pole at the surface of the planet is called the Earth's axis. It is an imaginary line around which the Earth rotates.
A line of latitude, also known as a parallel, is an imaginary horizontal line on the Earth's surface that specifies the location of a point north or south of the equator. The equator is 0 degrees latitude, and as you move towards the poles, the latitude increases. Lines of latitude are used to indicate how far north or south a location is on the Earth.
The imaginary parallel lines that run east-west are called lines of latitude. These lines measure the distance north or south of the equator and are used to establish the location of a place on the Earth's surface.
grid called a latitude and longitude grid, which helps in pinpointing specific locations on the Earth's surface using angular measurements. This grid system divides the Earth into a network of horizontal and vertical lines, allowing for precise navigation and location tracking.
normal lines or normals
The magnetic meridian is an imaginary line that represents the direction of the Earth's magnetic field at a particular location on the Earth's surface. It is defined as the vertical plane passing through a magnetic needle or compass that is free to align itself with the Earth's magnetic field.