It is 180, which goes from pole to pole on the opposite side of the world from Greenwich (London).
An interval is a subset of an order-numbered set; the interval includes a highest- numbered member of the subset and a lowest-numbered member of the subset and all members of the set with order numbers with values between that of the highest- and lowest-numbered members. This is more exactly called a "closed interval". An "open interval" is defined in the same way, except that the lowest-numbered and highest-numbered limits are not part of the subset.
If you are asking about time-related A M and P M then it means - Ante meridian and post meridian. "Ante" is Latin for "before", "post" means after.Meridian is when the sun reaches its zenith, the highest point in its daily arc; i.e., noontime.
AM = "Ante - Meridian"PM = "Post - Meridian""Ante" and "post" mean "before" and "after"."Meridian" is the imaginary line in the sky that runs north/south and passes directly over you.In the morning, the sun moves from the eastern horizon toward the meridian. At Noon, the sun crosses the meridian. In the afternoon, the sun has crossed the meridian and moves away from it toward the west.Morning is the time before the sun crosses the meridian = Ante-Meridian = AM.Afternoon and evening is the time after the sun crosses the meridian = Post-Meridian = PM.
There are 360 degrees. They are numbered 0, 1-179 East, 180, and 1-179 West.360 degrees.On the earth, there is the Greenwich Meridian = 0 deg;1 - 179 East and 1 - 179 West;and 180 deg, much of which forms the International Date Line.
Time before noon. Before the use of standard time, (Greenwich Mean Time, time zones, etc.) most communities used solar time. Every town had its own standard of time. Noon was when the sun reached its highest point in the sky on any given day. Solar noon happens at the moment of the sun's transit of the meridian; the geographical north- south imaginary line directly overhead that the sun and other celestial bodies cross. Before the sun crosses the meridian it is morning. After the sun crosses the meridian it is afternoon (post meridian). In modern times we still use the a.m. and p.m. designations, even though they are not technically correct.
I am not sure, but i think it is the prime meridian, pretty sure i am not right
The Prime Meridian is numbered zero degrees. Meridians, or lines of longitude, are numbered with increasing numbers of degrees both east and west of the Prime Meridian. On the opposite side of the world from the Prime Meridian is 90 degrees, which is also the International Date Line.
Prime meridian
An interval is a subset of an order-numbered set; the interval includes a highest- numbered member of the subset and a lowest-numbered member of the subset and all members of the set with order numbers with values between that of the highest- and lowest-numbered members. This is more exactly called a "closed interval". An "open interval" is defined in the same way, except that the lowest-numbered and highest-numbered limits are not part of the subset.
Ante meridian and post meridian. "Ante" is Latin for "before", "post" means after. Meridian is when the sun reaches its zenith, the highest point in its daily arc; i.e., noontime.
The 'parallels' of latitude are numbered in degrees north or south of the equator, from zero to 90 degrees. The equator is zero; the poles are 90 degrees north/south. The meridians of longitude all pass through the poles. They're numbered in degrees east or west of the Prime Meridian, from zero to 180 degrees. The Prime Meridian ... the line defined as zero longitude ... is the meridian that joins the north and south poles and passes through Greenwich, England. (That's the origin of the terms "near east", "middle east", and "far east" ... they're the regions that are near, medium, and far to the east, beginning in England at the prime meridian.)
Valletta, the capital of Malta, is centered about 14.52° east of the Prime Meridian. There's no such thing as a place that's north or south of the Prime Meridian. The Prime Meridian covers all latitudes that exist, from the highest one to the lowest one.
greenwich meridian
Yes. Every "meridian" is an imaginary line on the Earth that joins the north and south poles and has the same longitude at every point on it. The Greenwich meridian is the one that passes through the Royal Observatory in England. It's defined as zero longitude, and all other longitudes on Earth are numbered starting at that one.
180° is halfway around a circle or a sphere. Beginning at the Prime Meridian, you can travel EITHER east OR west, and after you have traveled 180 degrees, you'll arrive at the same line either way ... the meridian of 180° E and W longitude, which is halfway around the Earth in either direction from the Prime Meridian.
The spherical Earth has 360° of total longitude, divided into 180° east of the Prime Meridian and 180° west of the Prime Meridian.So the highest value for longitude is 180° (this is nominally the International Date Line, and 180° E is the same meridian as 180° W)
I believe that the highest numbered motorway in the UK is the M898 a short 1/2 mile spur off the M8 in the Glasgow area.