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Oct 2021
1m 57s

Peut-on combattre le feu par le feu ?

Choses à Savoir
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Apr 16
Pourquoi la “mémoire photographique” n’existe (presque) pas ?
On entend souvent parler de “mémoire photographique”, cette capacité presque magique à se souvenir d’une scène dans les moindres détails, comme si notre cerveau prenait une photo parfaite du réel. En réalité, ce concept relève largement du mythe. La science, elle, parle plutôt de ... Show More
2m 1s
Apr 15
Pourquoi le jus d’orange a si mauvais goût après un brossage de dents ?
Ce n’est pas un hasard, mais un petit chef-d’œuvre de chimie… et de biologie sensorielle.Tout commence avec le dentifrice. La plupart contiennent des agents moussants appelés tensioactifs, notamment le sodium lauryl sulfate (SLS). Leur rôle est de disperser les résidus dans la bo ... Show More
1m 32s
Apr 14
Qu’est-ce que l’effet de vérité illusoire ?
Suffit-il de répéter une information pour qu’elle paraisse vraie ? Intuitivement, on aimerait répondre non. Et pourtant, la psychologie montre que c’est souvent le cas. C’est ce qu’on appelle l’« effet de vérité illusoire ».Ce phénomène a été mis en évidence dès les années 1970, ... Show More
2m 13s
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