Johan Rich

The oceans as a resource

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The previous unit in this module showed that most of out planet’s water is in the oceans but sea water is not readily usable for drinking or irrigation. What use are the world’s oceans? This unit looks at three important needs that the oceans provide for: oxygen, food and energy. Study the following presentation then … Read more

Non-violent opposition to Apartheid

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The National party started implementing apartheid laws and policies as soon as they came to power and many people immediately began to protest and resist this. The following presentation sketches some of the opposition measures: Repression and non -violent resistance to apartheid An early influential leader of the resistance was Chief Albert Luthuli https://www.britannica.com/biography/Albert-Luthuli An … Read more

A cheat sheet on mapwork calculations

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CALCULATIONS 1. Distance 1.1 Measure using a paper strip, dividers or piece of string 1.2 Confirm the map scale 1.3 Formula: Distance = Map distance X Scale / 100 000 1.4 Units: The result is distance in km 2. Area 2.1 Measure length and breadth of block on the map 2.2 Confirm the map scale … Read more

Settlements 6 – Urban heirarchies

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How far would you go to buy a loaf of bread? And to get heart surgery? What can you get in East London that you cannot get in Engcobo? Why? What is the result? Urban heirarchies and central place theory is an important area of current research in geography, but what are urban heirarchies? The … Read more