Did you know that birch sap is a great, natural energy booster? The friendly forester in this video shows us how to tap into this delicious and healthy natural resource.

In order to find out more about the common quail, this team of technicians is capturing some male members of the species to track the birds' migratory patterns, reproduction rate, and total population.

Brr! It’s hard to believe that anything could survive in waters as cold as minus two degrees. But recent research expeditions in the Antarctic Ocean have found life forms, like the icefish, that manage to thrive despite the chilly temperatures.

Like old cheese and old wine, old wood is in high demand when it comes to building new chalets. A modern cabin built of ancient wood provides the perfect balance of the old and the new.

In the tradition of the great Jacques Cousteau, two young Frenchmen have been crisscrossing the world’s oceans documenting their most marvelous encounters in a book. But the book is not just an ode to the beauty of the deep; it is a warning about the impact humans have had on this largely unknown world.

A beekeeper in La Roche-sur-Yon has found the perfect place for his apiary: the rooftop of a supermarket. It's a win-win situation: the store manager helps the beekeeper with his production in return for a steady supply of local honey.

Lionel tells us about the Seine's recent flooding, caused by severe weather conditions in Paris and surrounding areas. A statue of a French soldier below the Pont de l'Alma acts as an indicator of the river's water level.

In an effort to promote ecotourism, the town of Echelles has constructed one of the largest natural bathing areas in France. Its filtration system is 100% natural, powered by thousands of plant seedlings.

Galileo is in prison. He tries one more time to prove his theories to his inquisitor. But he finally recants during the trial saying the famous sentence: "and yet... it turns"

Galileo faces an uncertain future. Behind the scenes are political and religious intrigues and enemies plotting his downfall. The Pope, until now sympathetic to Galileo, has a change of heart. Under pressure from all sides and insulted by his latest works, The Dialogue Concerning the Two Chief World Systems, portraying the Church's view through the character Simplicio (Simpleton), the pope finally sends Galileo to the Inquisition Tribunal.

Galileo is under close scrutiny because of his Copernican views. Unfazed, he carries on his research and his teachings. Will the Inquisition bring his demise or will his powerful friends, Pope Urban VIII among them, protect him?

Galileo is about to throw caution to the wind and reveal his startling discoveries about planet Earth.

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.