Group: Luca Maschek + Elena Sale
Cosmetics were already used in the ancient world (egypt & greece) but with one big difference to modern cosmetics; the ingredients were ALL natural. How nice is that!
But things have drastically changed... Audio: Why you SHOULD care about this (NO CLICKBAIT)
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Team: Jan Tall & Luca Napolitano
Audio
Introduction: In our presentation we talked about the different methods gold is being mined and what social & economical impact it has on certain cultures.
There are many methods in order to mine gold. It depends wether the gold is already loose and can just be seperated from the dirt and rocks (by washing) or if the gold has to be loosened from within the rocks. The most popular method is gold panning, also known as gold washing.
Old and used gold is not being thrown away! It is finite and consequently valuable. Gold can be molten and formed into brand new gold bricks. There is absolutely no degradation in quality.
Gold mining impacts the world we live in, in various ways. The only winners in this business are the big corporations, which own the gold mines. But sadly if there is a winner, there has to be a loser aswell. The losers are the countries with gold occurance, mother nature and the people/workers in those countries.
Quiz question: Which of the following country has the most gold occurance?
1. Russia
2. Australia
3. South Africa
Vocabulary:
consequently - somit
degradation - Verlust
occurance - Vorkommen
Sources:
gold mining
gold recycling
social and ecological impact of gold mining
The direct energy, which we all see and know about only makes one third of the whole energy. The rest is embodied energy, which we don't see in a product. It is the hidden energy, the energy used in making the product and it is one of the biggest problems if we want to talk about climate change. This is why we have to get educated in this issue.
Audio:
Embodied Energy
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Introduction
Sprache 003.m4a (273,86 kb)
The breakdown of sulfur is a very challenging and hard work. It is extracted out of highly toxic gases in acid lakes or out of volcano mines. The workers have a big lack of equipment and their life expectancy is at 50 years, coughing blood is normal for them.
The mineworkers who breakdown sulfur on the Java island in Indonesia are working on the most difficult and dangerous conditions. But what are their lives worth and what is sulfur used for?
Find out in our presentation below! More...
Ferromanganese derived from batteries: about 40% manganese and 60% iron (Ferromangan: ca. 40% Mangan und 60% Eisen)
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