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  1. Dictionary
    hemisphere
    /ˈhɛmɪsfɪə/

    noun

    • 1. a half of a sphere.

    More definitions, origin and scrabble points

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  3. A hemisphere is one of two halves of the earth, especially above or below the equator, or one of the two halves of the brain. Learn more about the meaning, usage and examples of hemisphere from Cambridge Dictionary.

    • Hemisphere in Thai

      hemisphere translate: ครึ่งซีกโลก. Learn more in the...

    • Traditional

      HEMISPHERE translate: (尤指地球的)半球, 腦半球, 球體的一半. Learn more in...

    • Hemiplegia

      Examples of how to use “hemiplegia” in a sentence from...

    • Hemisphere: Malay Translation

      hemisphere translate: hemisfera. Learn more in the Cambridge...

    • Overview
    • In geometry
    • Earth’s four hemispheres

    hemisphere, in geometry and geography, half of a sphere. Although any spherical body can be divided into an infinite number of hemispheres, geographers often divide Earth’s surface into four hemispheres that are separated by two great circle routes—that is, lines that represent the shortest distances that can be drawn between two points on the surf...

    In geometry, a sphere is the set of all points in three-dimensional space lying the same distance (the radius) from a given point (the center); a hemisphere is half of a sphere, cut along the diameter. The curved surface area and volume of a hemisphere can be calculated by using the equations 2πr2 and (2/3)πr3, respectively. In both cases, r is the...

    Earth’s surface is often divided into the Northern and Southern hemispheres and, separately, into the Eastern and Western hemispheres. The geographic Equator, which occurs at 0° latitude, is the partition between the Northern Hemisphere and the Southern Hemisphere, with locations north of the Equator being considered part of the former and places south of the Equator making up the latter. The Northern Hemisphere contains 67–68 percent of Earth’s land and includes North America, Central America, Europe, a small part of South America, about half of Africa, and all of mainland Asia. The remaining 32–33 percent of Earth’s terrestrial environments are found in the Southern Hemisphere, which contains the rest of Africa, most of South America, all of Australia and Antarctica, and most of the islands of the Indonesian archipelago (including the island of New Guinea).

    Earth’s Eastern and Western hemispheres are divided by the great circle formed by the prime meridian (or Greenwich meridian), which connects Earth’s geographic North and South poles at 0° longitude, and the line at 180° longitude, which roughly corresponds to the International Date Line that bisects the Pacific Ocean. The Eastern Hemisphere lies east of 0° longitude and west of 180° longitude, and it includes almost all of Europe and Africa and all of Asia and Australia. The Western Hemisphere, which contains North America and South America, lies west of 0° longitude and east of 180° longitude. (To ensure that all of Europe and Africa are placed wholly within the Eastern Hemisphere, the boundaries between the Eastern and Western hemispheres are sometimes delineated along longitudes 20° W and 160° E.) About half of Antarctica lies in the Eastern Hemisphere, and about half lies in the Western Hemisphere. Africa is the only continent with parts in each of Earth’s four hemispheres.

    • John P. Rafferty
  4. A hemisphere is a half of a sphere or a half of the earth or the sky. Learn the etymology, examples, and phrases of hemisphere from the Merriam-Webster dictionary.

  5. A hemisphere is half of a sphere or of the Earth or the sky. Learn about the different types of hemispheres, their origins, and examples of usage.

  6. Mar 6, 2024 · A hemisphere is a half of a sphere, and Earth can be divided into four hemispheres by latitude or longitude. Learn about the characteristics, climates, and names of the Eastern, Western, Northern, and Southern Hemispheres.

  7. A hemisphere is half of a sphere. If it’s a cold winter in the northern hemisphere, take a winter getaway to sunbathe somewhere in the southern hemisphere. Hemisphere comes from the Greek, and combines the prefix hemi-, for "half," with sphere, or "perfectly round ball."

  8. A hemisphere is one of two halves of the earth, especially above or below the equator, or one of the two halves of the brain. Learn more about the meaning, usage and pronunciation of hemisphere with examples and translations.