Newton's idea of gravity

At the time of Isaac Newton, it was believed that the celestial bodies were moved by the so-called ether, a substance assumed to fill up all of space. But no one could prove the existence of this substance. Newton realized: rather than ether, there must be a universal action at a distance, originating from the celestial bodies themselves: the heavier a body is, the stronger its attraction. This is how the celestial bodies keep each other in their orbits. Author: ZDF/Terra X/ T. Schultes/ Aleks & Shantu Click here to see more videos: https://alugha.com/TerraX

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Black cats and superstition

Black cats were condemned at the time of witch-hunts as companions of Satan and allies of witches. Even today, they are occasionally still considered to bring bad luck. Author: ZDF/Terra X/Spiegel TV/Nanje de Jong-Teuscher, Kirsten Hoehne/Anja Schütze, Uli Weinlein/Tricky Source: https://haustiger

What does sustainability mean?

We act sustainably when we think about the future in everything we do. That means being mindful of valuable raw materials and reusing things. Author: ZDF/logo/Karola Körber Translation and dubbing: alugha Click here to see more videos: https://alugha.com/TerraX

Anasazi: High Culture in Chaco Canyon

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