The Roman Empire defines its borders. Hadrian's Wall in Britain and the approximately 550-kilometer-long Limes in Germania are imposing security systems against unwanted immigrants and hostile attacks. Author: ZDF/Terra X/ Story House Productions/ Sigrun Laste/ Jürgen Rehberg, André Götzmann/ Oliv
The Metric System is a universal way to measure many different things. But how does it work and who invented it? We explain these and other aspects of the Metric System in this simpleshow. Click here to see more videos: https://alugha.com/mysimpleshow Authors: Roman Ilyushenko, Nicolai Nobis The
In the atmosphere, at an altitude of about 20 to 30 kilometers, the ozone layer protects us from carcinogenic UV rays. But on earth, on the ground, ozone is a problem. Here, the colorless and toxic gas harms people and the environment. More about ozone: http://www.umweltbundesamt.de/ozon Transla
Water absorbs light. Red light is swallowed first, then other parts of the light spectrum. From about one kilometer, no more light penetrates into the depths. Authors: ZDF/Terra X/Hanna Kotarba/renderbaron Translation and dubbing: alugha Click here to see more videos: https://alugha.com/TerraX
Millions of seaweed rafts float through the ocean. Animals such as crabs and worms easily travel distances of thousands of kilometers by long-distance transport, allowing them to settle in new regions. Authors: ZDF/Terra X/Daniela Busch/Lisa Gradl/Maximilian Mohr Translation and dubbing: alugha C
From the end of 1941, a new camp had been built in the so-called "Auschwitz area of interest" of the SS. It was located three kilometers away from the existing Auschwitz concentration camp. Starting in March 1942, people were murdered by poison gas in two former farmhouses in Birkenau. Author: ZDF/
In the first century Rome was a place of longing for many who dreamed of a better life. But for most of them everyday life was not very glamorous. About a million people crowded around 13 square kilometers. Author: ZDF/Terra X/Story House Productions/Jens Afflerbach, Sebastian Scherrer/Jürgen Rehb
Saiga antelopes are amazingly persistent. On their long migrations through the steppes of Kazakhstan, the saigas can cover 80 kilometers and more in one day. Their enormous trunk helps them do this. But the nose can do even more. Author: ZDF/Terra X/Viking Film/Iris Gesand/Andreas Kieling, Frank Gu
Explore how astronomers and scientists use astronomical units to measure distances in the solar system in this video adapted from NASA. The astronomical unit (au) -- equal to the average distance from Earth to the Sun -- is a convenient unit of measure when talking about distances in the solar syste
Learn about Earth's close encounter with asteroid 2012 DA14 on February 15, 2013, in this video from NASA. Asteroid 2012 DA14 passed safely about 17,000 miles (27,000 kilometers) from Earth's surface. Its orbit was well known and scientists were not worried about a possible collision. NASA observes
Would you cycle 4,500km through Europe? No? Neither do we! But that's what Benedict does for us. He rides from Paderborn to Lisbon (https://www.ride-for-all.de) to draw attention to the DKMS and picks up a few tips from mountain bike professional and outdoor specialist Fabio Schäfer in this talk. Bu
Sadhguru explains that what the body needs is rest, and not necessarily sleep. If the body is at ease while you are awake, the sleep quota will go down. He also looks at how the quality of sleep is connected to the quality of life. If you wake up well, you will sleep well he says. Sadhguru Talks @
