In part five of this episode on "The Discoverers," Galileo is warned. His belief that the Earth revolves around the sun is sacrilegious. Giordano Bruno, who claimed this fact, was burned as a heretic by the Inquisition Tribunal.

In part four of this episode on "The Discoverers," Galileo, now a reputable scholar at the University of Padua, proceeds to make a telescope out of lenses with the help of his instrument maker, Marc'Antonio. In this cartoon, an attempt is made to explain Galileo's discoveries.

Episode nine of this series focuses on Galileo, a prolific inventor and scientist. He discovered the principle of the simple pendulum motion, very useful in the measure of time and later in the making of clocks.

In this video, a young Galileo gets one of his first revolutionary ideas on how to measure time. Pretty impressive for a fourteen-year-old, huh?

The Maestro explains how the revolutionary ideas of the early discoverers, which we now take for granted, were not always well received. Before Galileo, for example, everyone believed that the sun and all the other planets revolved around the earth!

In the last segment of this Il était une fois... episode on technology, we learn more about what vertical farms can do to help the planet thrive. The first commercial vertical farm recently opened in Singapore.

The students present the Maestro with various solutions for eliminating pollution on our planet, including vertical farms and biotechnology.

A group of smart young people found revolutionary ways to solve our planet's woes. Electronic books, Internet mail and much more...

Modern technology comes to the rescue! Planet Earth has a chance of recovering from man-made pollution.

Technology not only helps clean up our planet, but also allows us to explore the entire universe. According to the astrophysicist Alfred Vidal-Madjar, in five hundred years, we will have visited all the planets in the solar system.

The home of the future includes a talking refrigerator that gives you chocolate bars for breakfast! Unfortunately, it also includes some pesky robots....

In the second part of this Il était une fois... (Once Upon a Time) episode on technology, the kids attend a technology show in Japan, where they play some amazing virtual reality games... and some practical jokes.

The Maestro gives us an overview of some of the major innovations of the last century, from the invention of the radio to the discovery of the first exoplanet. We've come a long way in just a few decades!

Henri Griffon, an art enthusiast, puts his passion to work and brings together an amazing collection of contemporary artwork featuring the best artists from the Vendée.

Food is scarce, too many men, not enough game to kill. What are they to do? The explorers setting foot on the Americas are having a tough time.

This tribe of hunters must use whatever they can find to nourish themselves and survive. Luckily, two of their children stumble across a pond full of fish after the ice melts, giving them plenty more to eat.

In an archaeological park in Aussois, you can find some fascinating, mysterious rock engravings dating from sometime between the Neolithic Period and the Iron Age. Do the "armed dances" carved in the rocks represent a battle or a ritual? The tour guide in this video speculates on their possible meanings.

In this segment of the Il était une fois episode on the Americas, a group of hunters go across what is now known as the Bering Strait in search of game. Little do they know that, by doing so, they'll become the first settlers of North America!

Daniel Benchimol walks us through one of Paris's most charming neighborhoods, the Campagne à Paris (Countryside in Paris). This small, quiet corner of the 20th arrondissement is made up of only 89 houses built in 1906 and gives the impression of a quaint village inside a major city.

The Maestro has made his final journey and will not join the next expedition. It's time to bid him farewell!

The series Il était une fois... les Amériques: Les premiers Américains (Once Upon a Time... The Americas: The First Americans) relates American history from the very beginning up to the twentieth century. In this episode, hunters boast about their day chasing after a huge animal.

It's one thing to have to track down a woolly mammoth for food, but it's another thing to cook it! Luckily these prehistoric Americans just discovered how to make fire.

Since all the animals have moved away from their area, these early Americans are forced to follow in their paw prints... otherwise they'll have no food!

Finding food was often difficult for the earliest settlers of the Americas. Luckily for the characters in this video, there's enough berries to go around.