Uticaj UV zračenja na boju kože

Svetska distribucija ljudskih tonova kože odgovara intenzitetu UV zračenja. Na ekvatoru, gde je zračenje najviše, tamna koža štiti od oštećenja zračenja. Na severu, sa druge strane, svetlija koža je korisna. Autor: ZDF/Terra X/Tobias Schultes/Albrecht M. Wendlandt Prevod i sinhronizacija: alugha Kliknite ovde da biste videli još video zapisa: https://alugha.com/TerraX

LicenseCreative Commons Attribution-ShareAlike

More videos by this producer

How does an earthquake come about?

The rock plates of the earth's crust are constantly in motion. They can get caught and build up enormous tension. If this tension is released suddenly, the plates continue to slide. The earth shakes. Author: ZDF/Terra X/Julia Kammerer/Martin Schaaf/Maximilian Mohr Translation and dubbing: alugha

Why does the ice shelf melt

The Antarctic ice sheet is the world's largest permanently icy area. If the sea warms by just 0.5 degrees, the ice shelf melts from below and breaks at the edges. Author: 3sat/nano/mobyDOK/Alexander Lahl/Max Mönch/Jean Schablin/Robert Coellen/Mirko Tribanek/Mandy Blaurock,Susan Kreher/Jochen Schmid

Sun and lunar year

Ancient Greek scholars knew the difference between the solar and lunar year. While the earth revolves around the sun once in the course of a year, the moon revolves around the earth about twelve times. Author: ZDF/Terra X/Tobias Schultes/WENDEVARGA Translation and dubbing: alugha Click here to wa