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Kreislauf der Fotosynthese
Die Fotosynthese ist ein fundamentaler biochemischer Prozess, der von Pflanzen und Algen betrieben wird. In dem Film wird dieser Prozess in Grafiken und Realbildern detailliert und anschaulich dargestellt. Auf die Entdeckung durch Joseph Priestley und sein berühmtes Experiment wird ebenso eingegangen wie auf die Bedeutung der Fotosynthese für die Ökosysteme der Erde.
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Human Brain
Every organism, no matter whether it is an earthworm, a snail, a fish or a human being, takes in information from the environment through differently structured sensory organs. This was absorbed first by a diffusely organised nervous system, which, in the course of evolution, has been replaced by a hierarchically organised one. Eventually a controlling centre has developed that interconnects and coordinates the nerve impulses supplied by receptors, reacts appropriately and is called the brain. In more highly developed organisms a part of the body has developed into a head, in parallel to the development of the brain.
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Human Lung
Only rarely do we notice that we need them: our lungs. Mostly, we breathe unconsciously and shallowly – especially if we have a sitting job.
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Horses
They are the epitome of power and elegance. Man domesticated them long after dog and cat, they provided meat, were strong agricultural helpers pulling ploughs and other implements. These hard times are over for the animals – their range of service has changed. The most favourite animal of many children and grown-ups, it has changed from former working animal to today’s companion for sport and leisure. The horse breeds known today are descended from a primeval horse. It lived about 50 million years ago – that is fifty with six zeros after it!
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Amphibians
More than 350 million years ago, the evolution of amphibians set in. Amphibians developed from fish – a first step towards life on land. Diverse reproduction strategies, manifold forms of appearance and a broad spectrum of sizes, ranging from the tiny Brazil litter frog to the giant salamander, constitute the special characteristics of the class of amphibians. The pupils learn about the different respiration techniques and the particularities of the amphibians’ circulatory system as well as about their defining characteristics and their repro- duction strategies. Moreover, the threat to amphibian species posed by environ- mental poisons and the climate change is also discussed. This DVD leads the pupils into the fascinating, unknown world of amphibians, which still remains to be fully researched.
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Ecosystem Sea
The oceans have been the largest connected ecosystem of the world since hundreds of millions of years. All life originated here, and a stable system ranging from single-cell plants and animals to huge vertebrates has been established. An incredible abundance of shapes and colours has emerged. Even today, we know only a fraction of this variety. We know less about the co-existence of these beings, their interdependency and the conditions and particulars of their food chain than we know about one or the other celestial body. The largest consumers of the sea, sharks and whales have an important task in the marine ecosystem. They ensure that the populations of small predators like seals, groupers and tuna do not grow excessively. In the film, the interrelation between the individual creatures is illustrated and the ecosystem sea as well as the dangers of human interference are explained using the example of sharks and whales. We learn about these animals’ characteristics and structure. We also see why and how they are endangered and what damage the marine ecosystem might suffer if these animals were exterminated. The climate change and its consequences for the ecosystem sea are illustrated by the example of sharks and whales.
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Basics of Biology II
In its first chapter, Basics of Biology II deals with the food chain. The producers as the basis of the food chain and the consumers, the herbivores and carnivores, are introduced /presented. Further focus points are the energy intake through food as well as the energy losses connected with it. The resulting energy efficiency of a herbivore is vividly illustrated in an experiment. Subsequently the carbon cycle is dealt with: its occurrence and the carbon cycle from producer to consumer, and last but not least the function of destruents. In the third chapter the next important cycle, the nitrogen cycle, is discussed. Special emphasis is put on the process of nitrification as well as the function of nitrogen-binding micro-organisms and their natural fertilisation of our agricultural soil. The importance of the nitrate for plants is shown in a laboratory test. Together with the extensive additional material the DVD is ideally suited for use in the classroom.
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Infections
’Health isn’t everything but everything is nothing without health.‘ – This clever sentence comes from the German philosopher Arthur Schopenhauer. Since the introduction of antibiotics we are hardly aware of infectious diseases as a threat to our health anymore. However, how important successful prevention and therapy are is shown in the fact that in Germany alone about 50,000 deaths are caused by infectious diseases every year. Infections are the second most common cause of death worldwide. According to an estimate of the World Health Organisation more than 30% of deaths worldwide are related to infectious diseases. Most of them affect people in poorer countries and over 15 million people die of infections worldwide.
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MedienLB has been producing award-winning school films and interactive modules for the classroom since 2006.
Indian Priests
Is there anything unusual about Father Xavier, a coloured missionary from India, working as a priest in Germany? The film begins with Xavier in his Indian home village where people Christianity is part of people’s everyday lives. Then we see him work as a chaplain in a community in Munich where he is faced with the situation of the Church in Germany: empty rows and mainly senior churchgoers. He learns that foreigners are not always welcomed with open arms. What does “mission” mean today? Has Germany become a place in need of missionary work? If there is a shortage of young priests in Germany, is it possible to simply invite young priests from other cultures, from the churches of Asia, Africa and Latin America to come here? Are they bringing the message they once received from missionaries back to Europe? Does evangelisation now take place the other way round?
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Geologic Activities
The formation of our earth began according to today's knowledge from a huge cloud of dust and gases about 4.6 billion years ago.
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Rome
On the Tiber, in the centre of Italy, there lies the Italian capital of Rome. The “Eternal City” as it was called by the poet Tibullus more than 2,000 years ago, is located on a plain between the foothills of the Apennine and the Tyrrhenian Sea.
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