Une pizza supersonique : les moteurs

Olive would love to see beyond the mountains. Despite their attempts to get there with a convertible and a mammoth, as well as hike to the end of the mountain, they can't because there is a huge cliff. The only way to get there is by hot air balloon. We will discover how this one works!

It's a hot day on Mammoth Island. Finding a cool place to stay is no easy task for Olive and her family. The inventor helps them by explaining how a refrigerator and air conditioning work. Even the mammoths will benefit from the new inventions of the islanders!

During the summer, Tom and Olive work as mail carriers. There's nothing like a mammoth to pull the mail cart, but when it comes to stopping the cart, our friends just miss an accident. Fortunately, the inventor demonstrates the effectiveness of the brakes and takes the opportunity to explain the phenomenon of friction.

To reach new pastures, our heroes must guide their mammoths through a real labyrinth of canyons. But as soon as they find themselves in this immense maze, the mammoths, frightened by the echo of the voices, panic and flee. It is by using the phenomenon of sound and vibration that they manage to gather the herd.

The Mammoth Island ferry was the first to provide a regular link with the neighboring island. Unfortunately, during its first crossing, its cargo fell into the water. Olive and the inventor use the principles of immersion to recover the luggage that has fallen to the bottom of the sea.

To pick coconuts, Tom has developed a clever technique. His mammoth lowers the branches of the coconut trees with a rope, and Tom only has to raise his arms to harvest the fruit! But one day, he accidentally discovers that harvesting can be even more efficient and deliveries faster thanks to springs. By using leaf or spiral springs,…

To pick giant lemons, Tom, on the back of a mammoth, uses a metal spear. But beware, there is electricity in the air! As he plunges his harpoon into a lemon, he and his mammoth receive an electric shock! In this episode, the inventor explains the principle of electricity.

Today, Bertille has decided to go to the market. While she is away, Tom and Barnabé are in charge of tidying up the kitchen. While Tom is rushing to do the dishes, Bertille's wedding ring falls into the sink! With the help of their friends, they will try everything to recover it before Bertille returns.

On the island, everyone thought it was impossible to make music without the mammoths... until the day when the inventor teaches our friends to play with real instruments that produce vibrations with the air. After a few rehearsals, more noisy than melodious, the new Mammoth Island Orchestra is finally ready for the concert on the…

Out with the old, in with the new! Bertille and Barnabé set out to modernize the Mammoth Inn they had just inherited. They equip it with the most modern and sophisticated devices: alarm systems, smoke detectors, sliding doors and metal detectors soon replace the mammoths that used to be the picturesque charm of the place. This does…

On the island of the mammoths, the 'telephone stones' turn out to be a somewhat hazardous and sometimes even dangerous means of communication! After the inventor's explanations, the islanders quickly adopted the telephone. This electric telephone sends signals that travel through electrical wires and are eventually…