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
Flugzeuge erzeugen in der Luft unsichtbare Turbulenzen, sogenannte Wirbelschleppen. Für nachfolgende Maschinen sind diese spürbar. Durch die Klimaerwärmung tritt im Bereich des Jetstreams vermehrt Windscherung auf. Starke Turbulenzen können entstehen. Autor: ZDF/Terra X/F. Siegwart/A. Linse/M. Heß
Only a huge flood catastrophe 5.3 million years ago caused the Mediterranean Sea to develop in its present form. From the Atlantic immense water masses flowed over the dam near Gibraltar and filled the dried up Mediterranean basin. Author: ZDF/3sat/nano/Gregor Steinbrenner/Kelvin Film GmbH/Sylvia L
Air pollution has many causes. The biggest polluter is energy production, with two-thirds of particulate emissions coming from coal-fired power plants. Road traffic and factory farming in agriculture also contribute to this. Author: 3sat/nano/Labo M/Johan von Mirbach/Chris Caliman/Christoph Valenti
