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Feb 2022
2m 3s

L'effet placebo existe-t-il chez les ani...

Choses à Savoir
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Pourquoi faut-il encourager les enfants à compter sur leurs doigts ?
Compter sur ses doigts est souvent perçu comme une habitude enfantine dont il faudrait se défaire rapidement. Pourtant, cette stratégie intuitive joue un rôle fondamental dans l’apprentissage des mathématiques. Une étude récente menée par Jennifer Way et Katherine Cartwright, che ... Show More
2m 37s
Feb 9
Pourquoi les étoiles paraissent-elles plus brillantes en hiver ?
Lorsque l’hiver arrive dans l’hémisphère nord, beaucoup de personnes ont la même impression : le ciel nocturne semble plus spectaculaire. Les étoiles paraissent plus nombreuses, plus nettes, parfois même plus scintillantes. Pourtant, leur luminosité intrinsèque ne change pas au f ... Show More
1m 55s
Feb 8
Qu'est-ce que la “propulsion autophage” ?
La propulsion autophage est un concept expérimental en ingénierie spatiale qui désigne un type de moteur-fusée capable de consommer une partie de sa propre structure pour produire de la poussée. Autrement dit, le moteur utilise certains de ses composants solides à la fois comme é ... Show More
3m 11s
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