why is the globe always mounted on tilted shaft ?the model of the earth
Answers
Globes fall into two broad categories: terrestrial and celestial. Terrestrial globes are spherical maps of the world, and celestial globes use the earth as an imaginary center of the universe to map the stars in spherical form. A globe is the only "true" map of the world because there is no distortion in relationships of areas, directions, or distances. The actual flattening of the true earth at its poles and "fattening" around the equator are such small, real distortions that they don't appear at the scale of most globes. The sphere constituting the globe is mounted on an axle and stand so it can be rotated like the earth.
The axle's tilt (23.5°) is the same as Earth's rotation on its axis (relative to the plane in which it orbits the Sun).
There are many types of globes within the classification of terrestrial globes. A physical globe depicts Earth as the astronauts see it (except that they also see the intervening clouds and the shadows cast by the sun). Although physical globes emphasize natural land features (sometimes showing them in relief), the features of the bottom of the sea can also be shown. A political globe shows the nations of the world in a variety of colors as well as other features of civilization like locations of cities. Varieties of celestial globes extend to globes of the planets and the moon. Thanks to satellite imagery and other technological advances, the physical features of the world are now available in globe form on CD-ROM as the digital globe.