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.

Our eco-friendly home show representative explains the benefits of cellulose wadding versus fiberglass, two insulation materials commonly used in houses.

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

It takes a lot to decorate the 31-meter high Christmas tree on Strasbourg's Place Kléber: ten technicians, two bucket lifts, 75 thousand lights. Luckily, the operation is being managed by Antoinette Pfimlin, who has 20 years of experience decorating giant trees in a hard hat.

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

A Primacalc representative introduces a revolutionary eco-friendly device that softens hard water. The device can be installed by a savvy handyman or a plumber.

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