Maps: Discover magazine Crossword

Mapmaking
Type of map projection that makes Greenland look bigger than South America
Author of "Guide to Geography"
Measurement of distance north or south of the equator
Global Positioning System, for short
The proportion between a small distance and the larger distance it represents
Type of radiation that shows up on certain kinds of aerial photos
Continent whose west coast was mapped by Portuguese sailors
Heavy metal wheel that spins
Imaginary line running north and south through Greenwich, England
Continental ______, the theory about the movement of the continents
Mapmaker's way of representing the spherical world on a flat surface
A book of maps
Home to Prince Henry the Navigator
Place where the earliest surviving maps were made on clay tablets
Early instrument that made map making more scientific