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Artensterben
Das ökologische Gleichgewicht der Erde ist nachhaltig gestört. Ein erhebliches Ausmaß an Artensterben ist zu beobachten. Die Gründe sind zahlreich und sowohl mit dem natürlichen Kreislauf als auch mit den Eingriffen des Menschen in die Natur verknüpft.
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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 This was absorbed first by a diffusely organised nervous system, which, in the course of evolution, has been replaced by a hierarchically organised one.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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Reptiles
This DVD offers a clearly structured overview over reptiles with an emphasis on the following aspects: The origin of reptiles is proven by fossil finds from all over the world. The skeletons are proof that reptiles were not confined to life on land but were also adapted to water and the air. The typical common characteristics of reptiles, such as the coat of scales and a poikilothermic body temperature, as well as the extremely different appearances of poisonous snakes and constrictors, turtles, lizards and crocodiles are discussed in detail. The different methods of finding food both as a herbivore or as an ambush predator with the use of poison or with the help of a pit organ are shown. The “invention” of the amnion made the reptiles’ reproduction independent from water and enab- led them to lay their eggs on land.
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The Eurasian Eagle Owl
With a body length of 60 to 75 cm and a wingspan of up to 170 cm, the Eurasian eagle owl is the largest owl in the world. It is also referred to as “king of the night skies”. After being hunted and almost exterminated by humans, the population of the Eurasian eagle owl has started rising again since the middle of the 20th century. Nevertheless, according to experts, it is not secured yet. Destroyed habitats and disturbances at the breeding sites, for instance by climbers, as well as dangers from power poles still threaten the population of the Eurasian eagle owl today.
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Kräuter
Nicht nur beim Kochen werden Kräuter verwendet, auch bei gesundheitlichen Beschwerden und kleinen Schönheitsmakeln kommen die Alleskönner zum Einsatz. Aber Vorsicht ist geboten, denn nicht alle Vertreter sind ungiftig. "Schau dich schlau!" erkundet die Vielfalt der Kräuterwelt, gibt Tipps zur Verwendung und erforscht Kurioses rund ums Thema.
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Fish Farming
Lakes, rivers and streams are the natural habitats of our freshwater fish. Some of them, such as carp, trout and char, are eaten as food fish. But where do the fish come from and why have our lakes and rivers not been fished dry yet? Since the Stone Age people have been catching fish for subsistence. Fish is an important source of protein. With a wide variety of methods, such as fishing rods or nets, we hunt them successfully.
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MedienLB has been producing award-winning school films and interactive modules for the classroom since 2006.
Kirchen
Kirchen haben eine lange Tradition und von außen sind sie heute meistens gut erkennbar. Aber wie sehen Kirchen eigentlich von innen aus? Denn egal ob alt oder neu, groß oder klein ─ so unterschiedlich sie auch aussehen, die meisten Gegenstände findet man in jeder Kirche. Der erste Blick, wenn man eine Kirche betritt, fällt meist auf den Altar und auf das über ihm hängende Kreuz. Für die Hostien, die den Christen so wertvoll sind, gibt es in der Kirche einen ganz besonderen Platz ─ den Tabernakel. Im Tabernakel werden die geweihten Hostien nach dem Abendmahl aufbewahrt. In der Nähe des Tabernakels hängt das ewige Licht.
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Seltene Erden
Der technische Fortschritt versorgt die Menschheit zuverlässig mit innovativer Technologie. Dies hat die Nachfrage nach spezifischen Rohstoffen, etwa für Mikrochips, Rußpartikelfilter, und Dauermagneten sprunghaft steigen lassen. Metalle wie Lithium, Cer, Neodym und weitere gehören zu den sogenannten „Seltenen Erden“. Der Bedarf nach ihnen hat große geopolitische Auswirkungen, und hat zum Aufstieg Chinas, das den Großteil der Lagerstätten auf seinem Gebiet birgt, entscheidend beigetragen.
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Lignite
Lignite, or brown coal, is an important energy carrier for providing Germany with electric power. In 2017 some 23 % of the country’s electricity was still obtained from lignite. German mining activities are centred in the Rhenish lignite fields to the west of Cologne. In the new eastern states, lignite is mainly extracted in the mining areas of Central Germany and Lusatia.
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