Hemisphere | Description, Types, & Facts | Britannica
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 2πr 2 and (2 / 3)πr 3, respectively.
The 4 Hemispheres Of The World - WorldAtlas
Feb 14, 2023 · A hemisphere can be defined as any circle that has been drawn around the Earth and divides the Earth into two similar halves. Four different hemispheres are generally considered by geographers. These are the Northern, Southern, Eastern, and Western hemispheres.
Hemisphere Definition & Meaning - Merriam-Webster
The meaning of HEMISPHERE is a half of the celestial sphere as divided into two halves by the horizon, the celestial equator, or the ecliptic. How to use hemisphere in a sentence. Did you know?
Hemisphere - National Geographic Society
Mar 6, 2024 · However, there are generally considered to be four hemispheres: Southern, Northern, Eastern, and Western. To get the Western and Eastern hemispheres, the intersection happens at the prime meridian. To get the Northern and Southern hemispheres, the intersection happens at the Equator.
Hemispheres of Earth - Wikipedia
In geography and cartography, hemispheres of Earth are any division of the globe into two equal halves (hemispheres), typically divided into northern and southern halves by the Equator and into western and eastern halves by the Prime meridian.
hemisphere - Kids | Britannica Kids | Homework Help
A hemisphere is half of a sphere, or ball. People use the word to describe one half of Earth. Geographers, or people who study Earth, have divided the planet into two sets of two hemispheres. These are the Northern and Southern hemispheres and …
HEMISPHERE | English meaning - Cambridge Dictionary
HEMISPHERE definition: 1. one of two halves of the earth, especially above or below the equator: 2. one of the two halves…. Learn more.
hemisphere - Encyclopedia of World Geography
When an observer looks directly at any particular point on the Earth's surface, a hemisphere is defined. However, there are a number of hemispheres that have special importance for the discriminating viewer.
HEMISPHERE | definition in the Cambridge English Dictionary
HEMISPHERE meaning: 1. one of two halves of the earth, especially above or below the equator: 2. one of the two halves…. Learn more.
hemisphere - Students | Britannica Kids | Homework Help
This imaginary division into hemispheres is useful in identifying large parts of the globe and in studying aspects of the Earth’s motions. (Although it does not affect the use of the word hemisphere, it should be noted that the Earth is not a perfect sphere.