Search results for “underground river”

Why do rivers meander

A river flows because water always follows the natural gradient on the earth's surface. All flowing waters follow the line of least resistance. River curves have developed naturally over thousands of years. They are called meanders. Author: ZDF/Terra X/Bilderfest/Florian Breier, Christian Stiefenho

Endangered river ecosystem

Too much manure in the water, straightened rivers and sluices: Three reasons why the habitat of many animals and plants in rivers is threatened. Author: ZDF/logo/Judith Vehar/Maximilian Mohr Translation and dubbing: alugha Click here to watch more videos: https://alugha.com/TerraX

How river water becomes drinking water

The managing director of the Hengsen waterworks explains the steps involved in extracting drinking water from the river water of the Ruhr. This process takes three to four days. Author: 3sat/nano/Spiegel TV/Christine Voges/R. Engelke/S. Karim/F. Gutsche/J. Heck/B. Asgari/K. Scheef/F. Buscha/Tim Ku

How Do MASSIVE Sinkholes Form?

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

The Tomb of Tutankhamun

Tutanachamun's burial ground is located in the middle of an underground necropolis with facilities dating from the 18th to 20th dynasties. In 1922, archaeologist Howard Carter discovered the entrance to the grave. Author: ZDF/Terra X/C. Moroni/S. Klauser/Group 5/M. Mohr Transcript: alugha Click h

The natural water cycle

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

What’s Hiding Deep Within The Rainforest?

Rainforests cover a large portion of Earth, but what's hiding inside of them? Click here to see more videos: https://alugha.com/LifeNoggin Follow Life Noggin! Facebook: https://www.facebook.com/LifeNoggin/?ref=br_rs Instagram: https://instagram.com/lifenoggin/ Twitter: https://twitter.com/lifenogg

Where did Earth’s water come from? - Zachary Metz

View full lesson: http://ed.ted.com/lessons/where-did-earth-s-water-come-from-zachary-metz Water covers over 70% of the Earth, cycling from the oceans and rivers to the clouds and back again. It even makes up about 60% of our bodies. But in the rest of the solar system, liquid water is almost impos

The founding of Baghdad in the 8th century

Baghdad in present-day Iraq was built in the 8th century on an important trade route between the rivers Euphrates and Tigris. The metropolis was probably designed as a round city Author: ZDF/Terra X/Gruppe 5/Faber Courtial, Susanne Utzt, Sahar Eslah, Martin Carazo Mendez/ Martin Christ, Marc Rieme