In this segment, we finally glimpse the peak of the Großvenediger. Back down in the valley, families make hay without the usual farm machinery.

Whitewater rafting and kayaking are very popular but also very dangerous sports in the Alps. Here we see some remarkable footage of a few daring individuals making their way through the thundering rapids.

Canyoning is another popular activity in the Alps, but it isn't for the faint of heart. In a glorious natural setting, the group faces some tough passages and harrowing jumps over waterfalls.

As autumn approaches, the sheep are brought back to their winter quarters. In this segment, we also see how beautiful the region is in the evenings.

Autumn in the Alps brings with it all kinds of new sights: the woolly sheep are rounded up by their owners, the larches are ablaze in color, the squirrels prepare for winter, and the mating battles are in full force among the stags.

In this video, we get to observe the mating rituals of the chamois, and how a mother protects her young from a fox on the hunt.

The autumn is short-lived in Vorarlberg, and soon the mountain landscape is blanketed in snow. The ibexes are provided with feeding stations to ensure that they survive the winter.

Eylin gives a summary of the planets in our solar system, and how the Earth's movement creates what we perceive as days and years.

Do you love gemstones and minerals? Then check out this video, where Eylin gives you fascinating info about all kinds of semi-precious stones.

In Part 2, you'll get to know more gemstones and learn about their origin and uses, as well as the properties that are attributed to some of them.

We are constantly exposed to substances that are harmful to our bodies, such as toxins in food, alcohol, exhaust fumes, and cosmetics. On top of that, there are medicines and other chemicals. How does the body deal with these?

Who still remembers Newton’s First Law? Nobody? Well, then this clip by Mathematik.net is exactly right for you. Have fun brushing up on your physics (and language skills at the same time) while watching this video.

In this clip by Mathematik.net, a magnetic levitation train in a vacuum tube is used to illustrate Newton’s First Law.

A private lab in Germany is working to create a vaccine for COVID-19 as quickly as possible. The US and German governments are already vying for access to the results.

It sounds like science fiction: Researchers at the University of Augsburg are developing an app that can recognize a coronavirus infection whenever a potential carrier speaks into the phone. So far, the app has a hit rate of over 80 percent. Copyright: Deutsche Presse Agentur [The German Press Agency]