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Visible yet invisible: The poetry of light

It isn't only physicists who are fascinated by light. Poets too have been entranced by its powers. Photons have mysterious properties. Perhaps this is why we like to light candles when we're feeling contemplative.

LiFi - The internet of light

Li-Fi, short for "Light Fidelity" is a wireless technology that uses LED light to share data. It is faster and safer than regular WiFi. And it could soon be put into practice.

Climate research in Rwanda

Africa’s first climate monitoring station is located on Mount Mugogo in Rwanda. Scientists there monitor levels of various greenhouse gases. They hope their data will help strengthen Africa’s position at international climate negotiations.

The female scientists of Gorongosa

In the Gorongosa National Park, young female scientists are cataloguing flora and fauna for a global genetic database. It will enhance our understanding of the diversity of life on earth and the roles different species play.

Harvesting sap with aphids

If sap could be manipulated to make a plant more attractive to various pollinators, it would help secure harvests. A common plant pest is helping researchers in the process.

Rare earths

Whether hard drives or electric motors, rare earth elements play a key role in a range of technologies. The metals mostly come from China. To ease dependence, researchers at the RWTH Aachen University are working on recycling the precious elements.

Biodiversity in the Orinoco basin

Travelling up and down the river, Alexander von Humboldt was ravished by the beauty and variety of the landscapes, flora and fauna. Today nature conservationists are battling to preserve the region's many threatened species.

Alexander von Humboldt in America - Part 4

The Humboldt Current along the coast of Peru is bursting with life. With its nutrient-rich water from the depths, the ocean current discovered by Humboldt is vital for a huge ecosystem. But climate change is now disrupting it.

Scientist Pierre Moret talks about Humboldt

Humboldt's Tableau Physique, shows the distribution of mountain vegetation as a function of altitude. Today scientists use the data to investigate changes due to global warming. But there are discrepancies, as Pierre Moret and his team discovered.

Mission to the practice moon

ESA astronaut Matthias Maurer could soon be joining a lunar mission. He's training on the Canary Island of Lanzarote, where the volcanic landscapes resemble the surface of the moon. He's also learning how to collect moon rock samples.

16 episodes

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