How will Archimedes be able to prove that the crown is not made of pure gold? Seeing his talent, the King asks him to help create systems for work that needs to be done.

The king suspects that his goldsmith has cheated him and his new crown isn’t really made of pure gold. Can Archimedes help determine what the crown is made of without smashing it apart?

In this video, you will learn what a gnomon was used for, who Euclid and Eratosthenes were, and what secret Archimedes thinks he discovered after his apprenticeship with Euclid.

Adalbert's mother thought it was a good idea to give the children a chemistry set – that is, something educational — to play with. But her plan backfires when Nick and Adalbert end up causing quite a bit of trouble!

Ancient Greece was home to many great thinkers, such as the physician Hippocrates, the philosopher Socrates, the sculptor Phidias, and the mathematician Archimedes.

A long afternoon lies ahead for Nick and Adalbert, and they really don't have much in common. Will they find something fun to do? Adalbert already has an idea, which at first seems rather daunting...

The cold weather and a shortage of food eventually drove the Neanderthals to extinction, clearing the stage for Cro-Magnons, our direct ancestors. But you'll have to wait for the next episode to find out more about that!

Nick was looking forward to enjoying his day off school, but it turns out his mother has other plans for him.

The climate is getting colder, the animals are disappearing, and the Neanderthals are gradually running out of food. Times are tough, and the Neanderthals are being forced to do whatever they can to survive.

The boys fight over who gets to hand over the figurines to the teacher. One of the figurines ends up broken, but the other survives thanks to Chlodwig's athleticism and bravery. In the end, however, everything turns out differently than planned!

The Neaderthals discover that fire makes meat taste better than ever! As time goes on, they also refine their hunting techniques and even work out how to lay rather sophisticated traps.

The next day at recess, the boys share their ideas for the teacher's gift: From a fur coat to a pony, they come up with all sorts of things! Everyone puts in as much money as they can, and then it's off to shop.

The banished hunter finds a mate and is accepted into his new family as an equal. But there is someone who does not like that at all...

The animated series Little Nick is based on a children's book written by René Goscinny, the author of the Asterix comics. In the first part, Nick and his friends are in the schoolyard and find themselves in one of those situations most of us will know all too well.

The Neanderthals discover that tools can be made from stones, new hunting methods are discovered, and the many different clans try to resolve disputes through negotiation.

Life is hard for Homo erectus, whose biggest challenge is to find enough food. At some point, one thing becomes very clear: It's better to hunt as a team!

Now the apes are slowly climbing down from the trees and starting to walk upright. What are the names of the next species and what characterizes them? Join us and witness this stage of our journey through the history of mankind.

The dinosaurs die out and the Earth is populated with small mammals and apes, who slowly adapt to their surroundings over millions of years.

This video on the history of life on Earth looks at the emergence of reptiles and amphibians on land, and the different types of dinosaurs that roamed the land before continental drift occurred.

This series tells the story of mankind, in this episode starting billions of years ago with the early days of the earth's existence, when there was not yet life on our planet.

The music group Deine Freunde writes rap songs for kids. This one is about how often children have to listen to adults exclaiming, "My, how you've grown!"

Heidi and Peter manage to trick Karl and Theresa into telling them where Peter’s treasure chest is hidden. They bring the chest back to the tree house. But someone has been spying on them!

Rosetta tells us about what she learned during her first year studying comet 67P/Churyumov-Gerasimenko — and Philae, asleep on the comet itself, finally wakes up from his hibernation!

Rosetta and Philae were ready for their biggest challenge yet: Philae’s landing on comet 67P/Churyumov-Gerasimenko. When Rosetta said goodbye to her lander and released it onto the comet's surface, the whole world watched in suspense to see what would happen next.