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L'air chaud est-il plus efficace que l'air froid?

S1 E18
·
2016

Our trio tackles a common misconception that affects us all. Is hot air or cold air better for defogging your windshield? Agathe, David, and Vincent are full of creative ideas to take on this challenge: a full-fledged marching band has been tasked with fogging up the test subjects’ bus.

Levels:
Elementary Grade 7 Grade 8 Secondary Grade 9 Grade 10 Grade 11 Grade 12
Subjects:
Science and technology Earth and Space Systems
Skills:
Critical Thinking Problem Solving
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E51 : Homme contre fourmi, qui est le plus fort?

17 min 18 s
Agathe, David, and Vincent gathered a weightlifter, a gymnast, and more than twenty children at the lab to compare their feats to those of the ants.
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E52 : Peut-on réchapper à un crocodile?

17 min 29 s
While these reptiles rarely let their prey escape, Agathe, David, and Vincent wonder if it’s really possible to outrun a crocodile.
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E53 : L'armure des chevaliers les protège-t-elle vraiment?

16 min 27 s
Agathe, David, and Vincent are heading back to the Middle Ages! Our test subjects are going to put the armor’s durability and maneuverability to the test.
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E54 : Altitudes, profondeurs, quelles sont les limites du corps humain?

16 min 36 s
Whether we’re high up on mountain peaks or deep in the oceans, our bodies don’t react the same way. To test the limits of the human body, Agathe and David put Vincent to the test.
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E55 : Peut-on tromper un python?

17 min 52 s
Our testers aren't afraid of anything. They bring a five-meter-long python into the hangar. How do you distract a python? Agathe, David, and Vincent are going to put the predator's reflexes to the test with a series of challenges.
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E56 : Peut-on détruire un pont en marchant dessus en cadence?

16 min 37 s
It was a historical event dating back to 1850 that inspired Agathe, David, and Vincent to undertake this new experiment. Napoleonic soldiers are said to have destroyed the Angers Bridge by marching across it.
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E57 : Faire du ski nautique derrière un bateau à rames

16 min 52 s
Top-level rowers and a barefoot champion will be invaluable allies in tackling this challenge. What speed should they maintain? How many rowers should they recruit? What type of ski should they choose?
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E58 : Défi : dans la peau d'un astronaute

18 min 17 s
Our test subjects are going to achieve the impossible: living on Earth just as they would in space. Vincent heads to Cologne to the European Space Agency to undergo intensive training with top astronauts.
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E59 : Une peau de banane est-elle vraiment glissante?

16 min 3 s
Our test subjects are going to peel bananas to analyze their skins. Are they really slippery? To find out, we’re conducting large-scale tests in the lab, including a race through hundreds of banana peels.
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E60 : La file d'à côté va t-elle plus vite?

15 min 15 s
Vincent, James, and David find themselves stuck in traffic, trying to see if the lane next to them is moving any faster.
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E61 : Peut-on faire voler un avion en papier géant?

16 min 41 s
Our dynamic trio is going to make many schoolchildren’s dream come true: building a giant paper airplane. Vincent takes to the skies in a glider to study aerodynamics and takeoff techniques.
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E62 : Peut-on vraiment coller un homme au plafond par les pieds?

16 min 52 s
Will Agathe, David, or Vincent come up with the best glue to stick Vincent to the ceiling? Everyone has their own recipe, but there’s only one rule: the mixture must be natural.
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E63 : Peut-on manger sous l'eau?

17 min 5 s
Off to the Calanques of Marseille, where a perilous mission awaits Vincent. Agathe, intrigued by the methods of an extraordinary spider, has set him a challenge: just like the spider, he’ll have to try eating underwater.
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E64 : Défi : envoyer James dans l'espace

18 min 36 s
Our test subjects’ imaginations know no bounds: they’re defying the laws of gravity to send Mini-James into space.
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E65 : Les chauves-souris s'accrochent-elles aux cheveux?

16 min 1 s
Our dynamic trio tackles another common misconception: Are bats really so blind and clumsy that they get tangled up in people’s hair?
    Levels:
    Elementary Grade 7 Grade 8 Secondary Grade 9 Grade 10 Grade 11 Grade 12
    Subjects:
    Science and technology Earth and Space Systems
    Skills:
    Critical Thinking Problem Solving