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Dead Angle
Not only lorries have a dead angle. Other big vehicles such as buses or motor homes, even perfectly normal cars have a dead angle, that means an area where a driver might overlook a cyclist or pedestrian when turning corners. New technology is meant to help prevent accidents between cyclists and lorries. For example, sensors are often attached to lorries nowadays.
Learn moreStochastik 2
Bedingte Wahrscheinlichkeiten begegnen uns jedes Mal, wenn wir eine neue Information erhalten, die ein Ereignis unseres Interesses beeinflusst, beispielsweise einen Börsenkurs. Der Unterrichtsfilm löst die typischen Denkblockaden und vermeintlichen Widersprüche auf. Er vermittelt die Struktur der zugrunde liegenden Probleme anschaulich mit vielen Beispielen.
Learn moreThe Otto Engine
This DVD offers an insight into the historical birth of the Otto engine and also describes its latest version – the hybrid engine. In addition, other engines of the future are covered. The life and achievements of Nikolaus August Otto are dis- cussed, with all his successes and failures, from his first en- gineering attempts when reconstructing the Lenoir engine to the presentation of the “atmospheric gas engine” on the Paris World Fair through to his cooperation with Gottlieb Daimler and Wilhelm Maybach. The mode of operation of the Otto engine is explained to the pupils in detail, also with the help of a variety of animations and diagrams. The DVD goes into the four strokes of intake, compression, power and exhaust as well as the Otto engine as energy converter. Crude oil is one of our most important sources of energy. Besides outlining the evolution and processing of crude oil into fuel, this DVD puts emphasis on the increasing shortage of global crude oil resources. Alternative propulsion sources like hybrid engines as well as hydrogen-fuelled or gas-fuelled vehicles offer an environmental-friendly vision for the automobile’s future in times of global climate change.
Learn moreServer
Mit der Erfindung des Internets öffnen sich neue Wege der Kommunikation. Daten können in immer größer werdenden Mengen erstellt, transferiert und gespeichert werden. Doch erfordern diese Datenmengen eine neue Struktur und Organisation. Server sind darauf ausgerichtet große Datenmengen verwalten zu können.
Learn moreSource of Energy
Energy determines our lives. Without energy, plants, animals and humans would not be able to live. Without energy, there would be no movement. But what is energy? Where does it come from and how is it used – yesterday, today, tomorrow? The DVD provides an illustrative introduction into the highly topical issue of energy. Starting with the human perception, it leads us to the cosmic primal source, the huge fusion power plant above our heads – to the sun. In doing so, it explains how energy reaches the Earth and is used here in different ways by plants, animals and humans. The physics part clears up the terms work, power and degree of efficiency. The DVD shows what conversion losses occur in the process from primary energy to useful energy, of course including the clarification that energy can neither be generated nor lost in a physical sense. The ecological, economic and social sustainability is discussed. This way, it is made clear that only Renewable Energy – thus energy from the Sun – can secure our future.
Learn moreKarl der Große
Ein Beiname Karls des Großen ist „Pater Europae“, der „Vater Europas“. Jährlich wird in Aachen der Karlspreis an Politikerinnen und Politiker verliehen, die sich um die europäische Einigung verdient gemacht haben.
Learn moreBronze Age
With the use of bronze as a working material a new historical era started at about 2200 BC.
Learn moreThe Holocaust Memorial
The film “A German Memorial – How to Commemorate Six Million Murdered Jews” gives an insight into the two concepts of this memorial – each deeply impressive in its very own way. This thirty-minute documentary takes the viewer on a virtual tour of the Field of Stelae and the Information Centre. You will be immersed in the intensive atmosphere of the rooms, experience the visitors’ reactions and receive background information on the development and conceptual design of the memorial from the initiator Lea Rosh, the historians involved and the exhibition designer Dagmar von Wilcken. For the sound recording of the film, an unusual concept was implemented: there is no off-camera commentary, instead original sounds and interviews form the acoustic “backbone” of the documentation. The visitors’ voices reflect the different opinions on and impressions of the memorial, the historians talk about the contents of the exhibition and describe their experiences. These direct comments create a feeling of closeness. They convey the emotions the memorial stirs up in all those who take a closer look at it.
Learn moreDictatorships in the 20th Century V
Benito Mussolini is born in1883 in the Romagna, a region of farmers and labourers, and grows up in an Italy where the economic crisis determines people’s lives. This leads to mass emigrations in the south and also in the better developed areas of the north, the situation escalates. In 1911 unemployment reaches a record high throughout the entire country.
Learn moreC, CO2 and Associates in Everyday Life
All organic matter contains carbon. Coal is deposited in the Earth's interior. It developed about 300 million years ago from plants in a geological period which is also called Carboniferous. During the combustion of organic matter, carbon turns into the gas carbon dioxide. Dissolved in water, it becomes the so-called carbonic acid. Carbon dioxide is an incombustible, colourless and odourless gas that is easily dissolved in water. With various metal oxides or hydroxides it forms two types of salts: the carbonates and the hydrogen carbonates. As calcium carbonate it is contained in natural products such as chalk and egg shells. Specific forms of carbon, called modifications, are graphite and also the particularly valuable diamond.
Learn moreUnterwegs
Unterwegs sein, auf Reisen sein ist eine Urerfahrung des Menschen. Ob auf einem Feldzug, einer Bildungsreise oder einer Erholungsreise – die Urerfahrung des Reisens findet ihren Niederschlag in der Literatur.
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