Où s'envolent les ballons de la fête foraine?

Our test subjects are curious about one of science's mysteries: hypnosis. And to find out if it really works, our test subjects are going to try it out for themselves.

Gasoline vs. biofuel—which one should you choose?

Sending a text message while in the car, going for a boat ride, or even riding a merry-go-round... In extreme situations, Vincent has to find a way to overcome his motion sickness. Even with Agathe and David’s help, it’s no easy feat!

David wants to check whether fingerprints are reliable. To do so, he's going to try to replicate Vincent's fingerprints. To take on this challenge, he heads to the forensic lab.

To tackle one of the most fascinating natural phenomena, our team has sprung into action. Back at the lab, Agathe, Vincent, and James are conducting tests with a real lightning generator.

Using sensors and a slow-motion camera, Agathe, David, and Vincent will analyze the movements of brick-breakers. Our test subjects will measure bone strength and try to understand how bones regenerate.

During his visit to the world's largest French fry factory, David wonders how French fries can all have the same shape and color.

A full-scale test at the Scientific and Technical Center for Building, which has wind tunnels capable of simulating winds exceeding 100 kilometers per hour.

A spine-chilling experience for our test subjects! Vincent, the extreme tester, heads to the high mountains for a cold-weather endurance training camp and to bathe in glacial waters.

Agathe, the group leader, is a real bluffer at poker. And she’s determined to improve her game by learning to lie better. With the help of a lie detector, neuroscience, and leading experts, she’ll learn to control her emotions and body language.

David, the scientist, is going to try to uncover the secret behind cakes. What makes them so addictive? To do so, he gets a job as an intern at a factory that makes children’s favorite cookies.

Straw is a trendy and eco-friendly material, but can it go up in smoke? To test its resistance, Vincent finds himself in the midst of the flames during a real firefighter training exercise.

How can we tell if a dog is intelligent? Can we measure the IQ of our furry best friends?

To find out how to stay as dry as possible in the rain, our team is pulling out all the stops. David boards a weather plane and flies into the heart of a cloud.