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Explain why 0 degrees longitude and 180 degrees longitude are not designated east or west?
0 degrees longitude does not have a designation of east or west because it behaves like a mathematical zero. It is neither positive nor negative. It is simply the start. Longitudes run through the north and south poles. Therefore, 0 degrees longitude is actually on the same line of longitude on the other side of the world which is 180 degrees longitude. Since all the longitude lines work like this, 180 degrees is the highest degree of longitude that you can have. Here is where it behaves just like 0 degrees because it cannot be any larger than 180 degrees. There is no need to say whether it is east or west then.
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Longitude measures east and west as it runs north-south through the Earth from the North and South Poles, dividing Earth into the eastern and western hemispheres.
Because either way it would still be the same. There is only a maximum of 180 degrees longitude. If you move 180 degrees east and 180 degrees west, you will still end up at th…e same place, so there is no need to designate east or west for it. (MORE)
Students of geography, and anyone else who needs to find their way around a map with more confidence, may benefit from a fuller understanding of latitude and longitude. The tw…o terms are more than just confusing geography words that sound similar. They are also more than just little black lines on a map or globe that break everything into rectangles. In fact, latitude and longitude are the basis of the entire geographic information system (GIS) discipline, and the lines help you make sense of a map.Lines of latitude are the east-west lines that separate the globe. The base word is the same as that in lateral, meaning sideways, which may help some learners distinguish the term. The most significant line of latitude is the equator, which separates the northern and southern hemispheres. On most maps and globes, lines of latitude are marked at 15-degree intervals, going up to 90 degrees north and down to 90 degrees south. The Arctic Circle begins between 60 and 75 degrees north latitude, and the north pole is at 90 degrees north.If it's helpful, you can remember that lines of longitude look longer because they are vertical lines. There are two significant lines of longitude. First, the prime meridian is at 0 degrees, extending north and south through Algeria, SPain, France, and London, England. On the opposite side of the world, mostly in the Pacific ocean, is the 180-degree line of longitude, which represents the international date line. If, for example, you leave Alaska on Sunday and land a few minutes later in Russia after crossing the international date line, it will be Monday.The Tropic of Cancer extends from the equator to 23.5 degrees north latitude. Similarly, the Tropic of Capricorn extends south from the equator to 23.5 degrees south latitude. The "Tropics" are home to the vast majority of the world's rainforests, meaning they are also home to the majority of earth's plant and animal life. Direct sunlight year round allows prodigious growth at these latitudes, and keeps the days and nights roughly the same length.Any spot on the globe has a number that allows you to pinpoint where you are using longitude and latitude. The Island of Taiwan, for example, is at 23.5 degrees north by 120 degrees east. That means it's right on the border of the Tropic of Cancer.To further pinpoint location, degrees of latitude and longitude are then further subdivided into measurements of minutes and seconds. There are 60 minutes per degree, and 60 seconds per minute. So a map coordinate might be given as 30 degrees south by 150 degrees east by 22 minutes. This puts you in eastern Australia.To understand what these more precise measurements mean, a degree of latitude is approximately 69 miles, and a minute of latitude is approximately 1.15 miles. Broken down to an even more precise measurement, a second of latitude is only about 0.02 miles, or just over 100 feet. But a degree of longitude varies in size. At the equator, each degree of longitude is about 69 miles, just like a degree of latitude. However, the size gradually decreases to zero, as do minutes and seconds of longitude, as the meridians all converge at the poles.Latitude and longitude allow you to quickly and easily pinpoint locations on a map or globe. Understanding how to use coordinates is critical for anyone involved in navigation, from piloting to driving to hiking. Although the lines are imaginary, they allow you to segment the globe into rectangular shapes. Longitude and latitude may not make it easier for you to find a new restaurant, but understanding how the terms are applied on a map gives you a better understanding of the big picture of the planet from a geographical perspective.The concept of creating a logical grid system to describe locations of the world can be traced all the way back to classical Greece and China. The ancient Greek geographer Ptolemy is credited with creating a logical grid system of the world considered to be the earliest representation of the system of longitude and latitude measurements in use today. His system is published in his book, "Geography." However, it wasn't until the Middle Ages that a system of latitude and longitude was further developed and widely adopted for navigational purposes. (MORE)
Today, if you want to know where you are in the world, chances are that you simply whip out your smartphone and find out the easy way. In years past, however, things were not …so simple. In earlier years, the world became crisscrossed with trade routes navigated by ships with just the sun, moon, and stars. To find degrees, and therefore their location, took a trained eye and good instruments. What instruments, exactly, and how did they do it? Read on to learn the secrets.Degrees and minutes are the units with which you can describe your location on Earth, using longitudinal and latitudinal lines. The Earth is divided into 180 degrees latitudinal (parallel to the equator), and count up from zero at the equator to 90 at either pole. Longitudinal degrees count from the Prime Meridian, which runs parallel to the equator from the north pole to the south pole and through Greenwich, England. If moving east from the Prime Meridian, degrees will be measured in positive numbers up to 180; if moving west, they will be measured in negative numbers up to 180. In giving place names, the latitudinal degrees come first, followed by the longitudinal degrees.Navigational degrees are based on principles of geometry and trigonometry. Indeed, geometry means "to measure the Earth". While these maths originated around 250 BC, our system of measuring the Earth in longitude and latitude is believed to have been created by Hipparchus of Rhodes around 127 BC. Until the Prime Meridian was settled, however, each country would simply claim it to be in their own country and give locations accordingly, making giving accurate place descriptions very difficult. In 1884, the Prime Meridian was finally agreed to pass through Greenwich, England, creating a standard for all to follow.Finding the degrees in latitude requires a clock, a sextant or other way of measuring angles, and a latitudinal chart. To figure out where in the world you are, you should measure what degree the sun is from the Earth when it is at its highest--that is, at noon on your clock. You then check your chart to see where the sun is directly above on the day you are measuring it, and determine the difference between having the sun directly above you and where you actually are, thus determining where you are in relationship to the set point of where the sun is, and giving you your latitudinal degree.Longitudinal degrees are somewhat easier to find than latitudinal degrees. To find them, you simply need a very accurate clock. If the clock is set to noon at the Prime Meridian, you can tell where you are longitudinally by what time the clock says when the sun is directly overhead where you are. Since the earth moves 15 degrees every hour, you can determine how many degrees you are from the Prime Meridian by simply multiplying the number of hours' discrepancy by the number 15.Though we no longer have to rely on the sun and constellations to find degrees as we circumnavigate the globe in creaky wooden boats, knowing how it used to be done has its uses. The next time you find yourself out of cell phone range, for instance, you might take a glance around and see if you can still figure out where you are. And if not, it at least gives you a greater appreciation for those who went before us. Knowing the intricacies of how they made our world accessible, laying the groundwork for the ever-shrinking world, makes it all seem more worthwhile.GPS, or the Global Positioning System, was first launched by the US Military in 1978. It took another 17 years of work, however, until the system was finished in 1995. GPS relies on a system of 24 satellites orbiting the globe to ascertain a person's specific location in the world. (MORE)
Often, you will find that you need to go somewhere or find something. The first step, of course, is to know where you are going. You will need some way to describe the locatio…n. There are a couple ways to identify where a place is. These include relative and absolute locations. What is relative location, and what is absolute location? Put simply, to find a location, you need to either be able to find it in relation to a nearby landmark or you need to be able to find it on a coordinate system. Read on to learn more about relative and absolute location.Relative location refers to the location of a place described by what places are nearby. This includes direction and distance. For example, the relative location of a post office could be given by saying, "The post office is half a block south of city hall." Now you know where to find the post office, assuming that you know where city hall is. Normally, a relative location is described using obvious or well-known landmarks. Such a description wouldn't do much good for a traveler who can't find the landmark and doesn't know where to start. Also, descriptions of relative location are often rather vague. For a more precise location, you need a coordinate system.The geographic coordinate system is used to describe locations based on the geometry of the Earth. There are two variables: latitude and longitude. Lines of latitude are parallel to the equator and can be used to identify how far north or south something is. Lines of longitude go from the north pole to the south pole and can be used to identify how far east or west something is. Measurements of latitude or longitude are given in degrees. There are 90 degrees of latitude (north to south) and 180 degrees of longitude (east to west).Every point on earth has its own unique coordinates on the geographical coordinate system. Any combination of latitude and longitude indicates one place, and every place has its own set of latitude and longitude. Therefore, given a latitude and a longitude for your destination, you could find it even without knowing what is nearby or where it is compared to your current position. This is called "absolute" because it does not rely on the position of anything else.Fundamentally, all positions are relative. From this perspective, geographical coordinates are simply positions described relative to the geometry of the earth. The usefulness of coordinates relies on a common understanding of where the lines of latitude and longitude are. Specifically, it is common practice that zero degrees latitude is the equator and zero degrees longitude is the Prime Meridian, which passes through the Royal Observatory of Greenwich, England.When you need to know where something is, what you need is either its relative location or its absolute location. Relative locations are fine for everyday life when describing where something is in relation to a landmark that you know how to find. For more specific information about different parts of the earth, on the other hand, you use absolute locations listed on the geographical coordinate system. However, even these absolute coordinates are technically relative to the equator and the Prime Meridian.The topic of absolute locations is a bit more complicated than what is described here. There are actually several different technical methods of describing coordinates used for GPS navigation or scientific purposes. (MORE)
The East Coast and the West Coast fight about a lot of things. But they argue the most passionately about who has the monopoly on which foods. Which coast wins? Read on to fin…d out.Discounting Chicago's deep dish pizza, which is legendary in its own right, New York wins this one far and away. After all, the Big Apple has often been referred to as the Big Pizza. What more is there to say?One word: In-N-Out. That alone is enough to give the win to the West Coast.New Yorkers are famously snobby about their bagels; it's their way or the highway. And to be honest, we have to give it to them - East Coast bagels have the right texture and taste to make them far superior.Food trucks are certainly becoming more popular on the East Coast; owners of food trucks are unionizing, they're evolving into staples in the restaurant scene, and people have hard opinions about which ones they like better. But food trucks are an integral part of the culture of the West Coast. In fact, in California, food trucks have been around since the 1930s. We think the West Coast handily wins this round.The East Coast loves their wine, no doubt about that. But considering that California produces 90% of the country's wine, this is really not a contest. The West Coast has bragging rights on many sandwiches: pulled pork, BBQ, just to name a few. But the East Coast is essentially overrun with delis, from New York to Boston to D.C., and only on the East Coast can you get top-quality pastrami and reuben sandwiches. This point goes to the Atlantic coast. Considering the West Coast's proximity to Central and South America, and considering that tacos pretty much originated in California, we think the West Coast has this in the bag.This one is a tie. The East Coast clearly wins on the lobster front (Maine lobster, anyone?), the West Coast wins oysters, the East Coast wins clam chowder, the West Coast wins sushi...the list goes on and on. This battle will continue.There may be a lot of Starbucks on the East Coast. There may be a lot of Dunkin' Donuts on the West Coast. But no can deny that the eastern side of the country runs on Dunkin', and considering Starbucks was invented in Seattle, the West Coast clearly has the monopoly on Starbucks. We're sorry, but Starbucks will always win, so the West Coast wins this round.Sprinkles Cupcakes started in Beverly Hills and has since caused a cupcake revolution. But in the meantime, the cupcake trend has spread rapidly to the other side of the country and taken over the East Coast, not to mention that Dominique Ansel has created the famous cronut. The East Coast wins this one.The war will rage on forever... (MORE)
A map of the earth is covered in lines running east-west and north-south. These imaginary lines mark the location of the equator, prime meridian, the Arctic and Antarctic Cir…cles, and the International Date Line. (MORE)
The geography of any region includes a lot more than the basic schematic or description of the physical landscape or terrain. In fact, geography has grown to include several d…ifferent subtopics. There are several areas that are relevant when discussing the geography of East Asia. Specific topics within a geographic overview include the location, place and region, physical systems, human systems, as well as the environment and society.East Asia includes the areas of China, Japan, Korea, and Vietnam. These particular countries can even trace back their ancestral roots to the Neolithic time period going back millions of years. In effect, the location encompasses many different cultural backgrounds to create what is known as East Asia. While there are similarities within the cultures, there are many different traditions that correspond with each different group of people.There are two different ways of viewing places and regions when considering the geography of East Asia. First is the physical places and regions, such as the otherwise formal regions of China, Japan, Korea, Vietnam, East Asia, and Southeast Asia. The second perspective includes categorizing the places and regions in East Asia by culture and experience within a given physical region. Historically, Vietnam was divided by a mountain range into both north and south regions while Korea sits along the border of China and Russia.Physical systems in East Asia include the ways that the Earth is physically shaped and the "why" behind these particular shapes. As an example, different physical systems within East Asia include weather differences, susceptibility to tsunamis, earthquakes, volcanoes, as well as typhoons. Also included in this subtopic is climate and average rainfall. Most of East Asia has what would be called a temperate climate with summer rains and dry winters is just one example. For all of the East Asian countries, the main agricultural staple is rice, which grows well in the hot, wet summers. In China, you will find mountains, steppes, and plateaus, as well as deserts to the west and north as it is far inland. Japan, however, is an island nation made up of four distinct islands and many smaller ones. Korea is in its own peninsula while Vietnam is a combination of inland and peninsular areas.Human systems in East Asia take several characteristics of the people that reside in East Asia. These differences include population density as can be found in different areas of East Asia. Also included in this subtopic in geography of East Asia is the architecture that is unique to each individual region. As an example, while similar, there are distinct differences between Japanese and Chinese architectural design. The same can be said for food, religion, economic differences, and the differences that exist in everyday life for the people. To give some examples, Chinese civilization spread to the north in reaching Korea first and then Japan and later Vietnam. Chinese practices included a written script as well as Buddhism that had reached China from India originally. Historically, the Chinese people had settled along the Yellow and Yangtze rivers and remains in the area today known as China Proper. Currently, China and Japan are the most populated countries in East Asia.Within this subtopic, the way humans interact with the environment is the dividing line when categorizing different areas and regions. As an example, in Japan, rice is a cornerstone business for much of the country. For China, the emphasis tends to be on water regulation while both China and Vietnam share issues regarding deforestation. In Japan, there are not enough local resources for the country to remain industrialized, hence the main reason that there is so much importation to Japan. Korea, on the other hand, has plentiful resources, but is not nearly as populated as Japan or China.From architecture to physical differences, East Asia is comprised of many different geographical aspects. Cultures differ between countries as well as within countries in addition to various languages. Even though rice is their main source of agriculture, they are all unique in their own ways. The geography of East Asia is a rich tapestry comprised of everything from its physical location to how the entire geographical area can be divided so many ways.Japan is approximately 120 miles off the coast of China. It is widely believed that the main reason for the Japanese people to have such a strong cultural identity is due to the physical distance between the island nation and the mainland. (MORE)
Yes, all points east and west of the Prime Meridian are both between 0 and 180 degrees longitude because there are a total of 360 degrees of longitude on a globe divided into …180 degrees on each of the eastern and western hemispheres. (MORE)
-- The "Prime Meridian" marks zero longitude. -- The "180th meridian" marks 180° longitude. The International Dateline is either on or relatively near the 180th meridian … at any given latitude on it. (MORE)