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Edunia
41 posts

Edunia
@EduniaLab
Interactive science labs, ready to teach. Physics, Maths, Chemistry, Economics, Biology, AI & CS · Built for teachers · Swiss-made 🇨🇭
Switzerland 가입일 Mart 2026
30 팔로잉2 팔로워

@earthcurated Artemis II is about to reenter the atmosphere at 40,000 km/h. The margin on the reentry angle? Less than 1°. Too steep → burns up. Too shallow → bounces off the atmosphere back into space. Can you nail it? →
edunia.io/simulations/mi…
English

Artemis II is about to reenter the atmosphere at 40,000 km/h.
The margin on the reentry angle? Less than 1°.
Too steep → burns up.
Too shallow → bounces off the atmosphere back into space.
Can you nail it? → edunia.io/simulations/mi…
English

@lanoticiahn The reentry angle is incredibly sensitive. Too steep → the capsule burns up. Too shallow → it bounces off the atmosphere back into space.
The margin is less than 1°.
Your can try to nail it → edunia.io/simulations/mi…
English

@NeuralSpace_ The reentry angle is incredibly sensitive. Too steep → the capsule burns up. Too shallow → it bounces off the atmosphere back into space.
The margin is less than 1°.
Your can try to nail it → edunia.io/simulations/mi…
English

🚨🚀 ALERTE INFO
La mission Artemis II s’apprête à revenir sur Terre avec une rentrée atmosphérique spectaculaire.
L’équipage atteindra environ 25 000 mph (≈ 40 000 km/h), générant des températures proches de 5 000°C lors de la traversée de l’atmosphère.
Pendant environ 4 minutes, les communications seront coupées en raison du plasma entourant la capsule, un phénomène normal appelé “blackout radio”.

Français

@FabrizioBucella Great demo! Bernoulli is one of those topics where everyone's intuition is wrong "the wind pushes tiles up" when actually it's the low pressure that sucks them off.
Would make an excellent interactive lab 👀
English

Pourquoi les tuiles s’arrachent du toit en cas de tempête ? C’est à cause de la vitesse du vent qui crée une dépression. C’est l’effet Bernoulli.
Salukes
#science #physique #profbucella #lasciencepeuttout
Français
Edunia 리트윗함

Le paradoxe temporel de la boule de billard permet de comprendre où ça coince avec les voyages dans le temps sans mettre d’action humaine en jeu. C’est un modèle jouet plus facile à comprendre.
Vous en pensez quoi ?
Salukes
#science #physique #profbucella #lasciencepeuttout
Français

@FabrizioBucella Et pour ceux qui ne peuvent pas aller sur la Lune, on a recréé l'expérience de pensée ! Les élèves peuvent explorer par eux-mêmes !
edunia.io/simulations/ga…
Français

2 août 1971. Dernière sortie lunaire d'Apollo 15. Le commandant David Scott sort un marteau et une plume de faucon (emblème de la mission). Il les soulève à hauteur d'épaule et puis il les lâche.
Bardaf : ils tombent à la même vitesse.
C’est pas de la magie, c’est la physique. Sur Terre, l'air freine la plume. Sur la Lune, il n’y a pas d'air, seule la gravité agit. L’astuce est que la gravité accélère tous les corps de la même façon (g ≈ 1,62 m/s²).
C’est la fameuse loi sur la chute des corps, qui est un principe essentiel de la physique.
Le camarade Galilée l’avait prédit au XVIIͤ siècle. Il aura fallu attendre la Lune pour le montrer de manière éclatante.
La physique est belle.
Salukes
#science #physique #lasciencepeuttout #profbucella – Vidéogramme : Nasa.
Français

@atensnut Exactly. In our simulation, try to nail this angle. Most miss on the first attempt — the Moon's not where you think it is in 3 days.
edunia.io/simulations/mi…
English

@sciencegirl He was at his desk in Bern when he pictured a worker falling from a roof. "He wouldn't feel his own weight," Einstein realised.
From that one mental image, he built general relativity. Not bad for an afternoon at the office.
English

"After 5 heads in a row, tails is more likely."
This is the gambler's fallacy. Does each toss has a memory ?
edunia.io/simulations/pr…
English

@AMAZlNGNATURE The far side isn't dark, it gets just as much sunlight as the near side. "Dark side" is a Pink Floyd thing, not physics.
It's just that Earth never sees it, because the Moon is tidally locked.
English

@konstructivizm The far side. No human has seen it with their own eyes since Apollo 17 in 1972 and no camera can capture what 53 years of waiting feels like.
English

@NightSkyToday Light takes 1 second to cover that distance and never comes back.
The crew will. the Moon's gravity will slingshot them around and send them home. No engine needed.
English

A ball launched at 30° and one launched at 60° land at the exact same spot.
Same speed, same range ... completely different trajectories.
The symmetry of complementary angles is one of the most beautiful results in kinematics.
edunia.io/simulations/pr…
English

@CuriosityonX Fun fact: from where they are now, Earth can be covered with your thumb at arm's length. Every ocean, every mountain, every person behind a thumbnail.
English

The margin is razor-thin. Too steep on reentry → the capsule burns up. Too shallow → it bounces off the atmosphere and flies back into space.
In our laboratory, students try to nail this angle. Most don't on the first attempt.
edunia.io/simulations/mi…
English

@BrianRoemmele The tricky you don't expect: you can't aim at the Moon. You aim at where it will be in 3 days.
Can you find the right angle? → edunia.io/simulations/mi…
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