What…

• Is difficult about trying to represent the globe on a map? – Taking a 3-D object and trying to make it a 2-D

object will always result in distortions of:• Area• Shape• Distance

A map maker’s challenge:

How to flatten the Earth?

Techniques of map projection

Making a flat map of the Earth…

Is like peeling an orange…

Making a flat map of the Earth…

• To demonstrate the difficulty of making a flat map of a round surface, make a map out of an orange peel…

• Using a knife, try to peel the orange so that you take the skin off in one piece!

Is like peeling an

orange…

Not so easy, huh?

Although, maps can be made at random

or following a pattern