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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/missio…
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/missio…
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/missio…
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 👀
Edunia retweeted
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
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/galile…
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/missio…
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.
"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/probab…
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.
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.
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.
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/projec…
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.
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/missio…
The trajectory is a free-return loop. If every engine fails, the Moon's gravity alone sends them back to Earth. That's the safety net. the same one that saved Apollo 13. So the crew performs mid-course corrections: tiny engine burns of a few seconds that adjust the angle.
Artemis II is on its way to the Moon. But space isn't a straight line — here's how they stay on course 🧵
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/missio…