Added: Audie Macy - Date: 10.11.2021 20:23 - Views: 24715 - Clicks: 1148
Longitude is the measurement east or west of the prime meridian. Longitude is measured by imaginary lines that run around the Earth vertical ly up and down and meet at the North and South Poles. These lines are known as meridian s. Each meridian measures one arc degree of longitude. The distance around the Earth measures degrees. The meridian that runs through Greenwich, England, is internationally accepted as the line of 0 degrees longitude, or prime meridian. The antimeridian is halfway around the world, at degrees. It is the basis for the International Date Line.
Half of the world, the Eastern Hemisphere, is measured in degrees east of the prime meridian. The other half, the Western Hemisphere, in degrees west of the prime meridian. Degrees of longitude are divided into 60 minutes. Each minute of longitude can be further divided into 60 seconds.
A degree of longitude is about kilometers 69 miles at its widest. The widest areas of longitude are near the Equator , where the Earth bulges out. Because of the Earth's curvature , the actual distance of a degrees, minutes, and seconds of longitude depends on its distance from the Equator. The greater the distance, the shorter the length between meridians.
All meridians meet at the North and South Poles. Longitude is related to latitude , the measurement of distance north or south of the Equator. Lines of latitude are called parallel s. Maps are often marked with parallels and meridians, creating a grid. The point in the grid where parallels and meridians intersect is called a coordinate. Coordinates can be used to locate any point on Earth. Knowing the exact coordinates of a site degrees, minutes, and seconds of longitude and latitude is valuable for military , engineering , and rescue operation s.
Coordinates can give military leaders the location of weapons or enemy troops. Coordinates help engineers plan the best spot for a building, bridge, well, or other structure. Coordinates help airplane pilots land planes or drop aid packages in specific locations. Into the Great Wide Open It was not until the 18th century that people were able to correctly determine their longitude, even though they had been able to figure out latitude for some time.
Not being able to reckon longitude was dangerous for sailors. Without an exact location, they could easily run out of food or water on a long expedition into uncharted territory. The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another that contains the media credit. The Rights Holder for media is the person or group credited.
Jeannie Evers, Emdash Editing. Caryl-Sue, National Geographic Society. For information on user permissions, please read our Terms of Service. If you have questions about how to cite anything on our website in your project or classroom presentation, please contact your teacher. They will best know the preferred format. When you reach out to them, you will need the title, URL, and the date you accessed the resource. If a media asset is downloadable, a download button appears in the corner of the media viewer.
If no button appears, you cannot download or save the media. Text on this is printable and can be used according to our Terms of Service. Any interactives on this can only be played while you are visiting our website. You cannot download interactives. One of the oldest tenets of geography is the concept of place. Location is the position of a particular point on the surface of the Earth. Locale is the physical setting for relationships between people, such as the South of France or the Smoky Mountains. Finally, a sense of place is the emotions someone attaches to an area based on their experiences.
Place can be applied at any scale and does not necessarily have to be fixed in either time or space. Additionally, due to globalization, place can change over time as its physical setting and cultures are influenced by new ideas or technologies. Learn more about the physical and human characteristics of place with this curated resource collection.
Students look at lines of latitude and longitude on United States and world maps, discuss why these lines are helpful, and identify landmarks with similar latitude and longitude. Encyclopedic entry. The prime meridian is arbitrary, meaning it could be chosen to be anywhere. our community of educators and receive the latest information on National Geographic's resources for you and your students. Twitter Facebook Pinterest Google Classroom. Encyclopedic Entry Vocabulary. All lines of longitude are measured from the prime meridian.
Photograph by Bruce Dale. International Date Line. East of this line is one day earlier than west. Media Credits The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another that contains the media credit. Media If a media asset is downloadable, a download button appears in the corner of the media viewer.
Text Text on this is printable and can be used according to our Terms of Service. Interactives Any interactives on this can only be played while you are visiting our website. Related Resources. Concept of Place. View Collection. Introduction to Latitude and Longitude.
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