A Globe
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This is a simple algebra problem. The Sun has a diameter of 1,390,000 km, and the Earth has a diameter of 12,756 km. If I'm making a model of the Sun that is 1.26 meters in diameter, what should the diameter of the model Earth be? So, 12756/1390000*1.226 = 0.0112509755 meters, or 1.125 cm. So, if the sun-model is 1.26 meters, about the size of a bicycle wheel, then the earth-model is about the size of a pea.
Hey, With 2 axes its x and y with 3 its x,y and z Toby
volume
A globe which is spherical shaped
You do not. You see it stereoscopically, but the brain compares the images with experience and assumes threedimensional interpretations. This can be used to fool people with optical illusions. Forms that are possible in a twodimensional world, but does not have a representation in 3D that makes sense.