Water seeps into countless crevices and holes in the karst landscapes. Which paths it takes is often not clear. Around 270 caves have been discovered and developed in northern Vietnam. But the water rarely comes to the surface. Author: ZDF/Terra X/R. Marel/I. Gesang/SpiegelTV/Jochen Schmidt Transl
Drinking water in Germany is obtained from groundwater, surface water and spring water. Depending on the region, the composition varies. Author: 3sat/nano, mirror TV, Christine Voges, R. Engelke+S. Karm+F. Gutsche+J. Heck+B. Asgari, K. Scheef+F. Buscha, Tim Kunter Translation and dubbing: alugha
What are sinkholes, and how do these mysterious things form? Click here to see more videos: https://alugha.com/LifeNoggin Follow Us! https://twitter.com/LifeNoggin https://facebook.com/LifeNoggin https://www.instagram.com/lifenoggin Life Noggin is a weekly animated educational series. Whether it
How worried should you be if 1,4-dioxane gets into your drinking water? 1,4-dioxane is an industrial chemical used as a solvent and a stabilizer -- and in areas where there's environmental contamination, safety is an important question, especially as the substance is a probable human carcinogen. T
The natural water cycle is powered from solar energy. Its thermal radiation evaporates water from oceans, lakes and rivers into water vapour. As precipitation, the water enters lakes, rivers and groundwater and eventually flows into the sea. Author: 3sat/nano, mirror TV, Christine Voges, R. Engelk
Are green potato chips bad for you? Risk Bites takes a look at whether fears over green potato chips are just an urban myth, or whether there's more to them. RESOURCES Useful websites: Food and Agriculture Organization of the United Nations: http://www.fao.org/docrep/x5415e/x5415e01.htm Interna
