Articles Index - page 3
Uniformitarianism
James Hutton, known as the father of geology, suggested that the earth was much older and that processes occurring in the present were the same processes that had operated in the past, and would be the processes that operate in the future. This concept became known as uniformitarianism and can be summarized by the phrase 'the present is the key to the past.'
Koppen Climate Classification System
An overview of the Koppen system of climate classification, including maps of the the classifications.
Terminator Line
Learn about the terminator line on the earth that separates light from darkness.
Coldest Capital Cities
Find out which capital city is the coldest in the world and which make the top of the list of the cold capitals of the earth.
Prepare for Tsunami
Learn how to prepare yourself and your family for a tsunami. Find out what to do if you live in a tsunami hazard area, learn what a tsunami warning means, discover what to do when you feel a strong earthquake near the coast, and learn some common tsunami myths.
Mars: The Geography of the Red Planet
In the tradition of ancient geography, this feature describes a far-away and unfamiliar place, the planet Mars.
Intertidal Zone
Discover the fascinating intertidal zone, where land, ocean, and air meet.
International Date Line
Find out how the International Date Line works along with the 24 time zones of the world.
Magnetic Reversal
Discover all about the magnetic reversal of the earth's poles throughout the planet's history. The poles have reversed 170 times in the past 100 million years. Find out when it will happen next!
Countries that Lie on the Equator
A listing of the countries that lie on the equator or countries that the equator passes through.
Monsoon
Learn all about the monsoon rains and weather of the Indian subcontinent and Southern Asia.