Prof. Fabrizio Bucella
@fabriziobucella
Les astronautes d'Artemis II vieillissent-ils moins pendant le tour Terre-Lune ? Intuition immédiate : vitesse → relativité restreinte → vieillissent moins.
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More from Prof. Fabrizio Bucella
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Mélanger du vinaigre et du bicarbonate est-ce une bonne idée pour mieux nettoyer ? Qu’en dit la science ? Démonstration sous vos yeux ébahis. Salukes #science #physique #profbuc...
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La loi des carrés de Galilée et son plan incliné à clochettes est incroyable. Le Galilée, il m’épate, il m’épate, mais il m’épate. Salukes #science #physique #profbucella #lascie...
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C’est la première fois depuis Apollo 17 (décembre 1972) que des humains voient un lever de Terre de leurs propres yeux ébahis.
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L’eau monte dans le verre quand on éteint la bougie. Mais pourquoi ? La réponse n’est pas celle qu’on croit. La science peut tout. Salukes #science #physique #profbucella #lasci...
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D’où viennent les marées de la Lune ? La question est plus subtile qu’il n’y paraît. Elle sera résolue because la science peut tout (et la physique surtout). Salukes #science #p...
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Comment rester au sec avec une veste mouillée ? Mon nouveau livre est paru… Tadaaam ! Chez Allary Éditions. Filez en librairie, le tirage couleur est limité. Salukes #science #physique #profbucella #lasciencepeuttout
Une étudiante demande à ChatGPT de répondre à ses questions d'examen. L'IA refuse à plusieurs reprises en expliquant que ce serait malhonnête.
Pourquoi un vélo tient-il debout ? C'est le phénomène d'auto-direction. Quand le vélo penche sur le côté, l'avant pivote spontanément du côté de la chute. Le point de contact se trouve sous le centre de masse et il redresse le vélo. Longtemps, on a cru à trois effets combinés :
C’est quoi la singularité d’un trou noir ? C’est le futur inéluctable de tout observateur qui tombe dans le trou noir. ✅ Extrait de la conférence : « Voyage au coeur d’un trou noir » donnée à l'Université de Namur à l’invitation des étudiants de Kap to Universeh. Vidéo intégrale sur YT. Salukes
Si vous allez chez un marchand de légume qui vend des fruits, vous trouverez les oranges empilées en pyramide. Est-ce la bonne manière d'empiler les oranges ? En d'autres termes est-ce que vous pouvez mettre un maximum d'oranges dans un volume donné ? C’est la conjecture de Kepler. Salukes
Comment reconnaître la face cachée de la Lune ? Des cratères à perte de vue, aucune mer lunaire, les taches sombres qui caractérisent la face visible. Sur la face visible, c’est pas qu’il y a moins de cratères, c’est que les mers les ont recouverts. Salukes #science #physique #lasciencepeuttout
La loi des carrés de Galilée et son plan incliné à clochettes est incroyable. Le Galilée, il m’épate, il m’épate, mais il m’épate. Salukes #science #physique #profbucella #lasciencepeuttout
C’est quoi le paradoxe des trous noirs ? Ces objets sont prédits par la théorie et pourtant ils prédisent la fin de la théorie. Salukes #science #physique #profbucella #lasciencepeuttout
L'entropie et la couque au chocolat. Si vous me prenez pour un fou, ma maman pense la même chose. Salukes #science #physique #profbucella #lasciencepeuttout
Le paradoxe des deux enveloppes retourne le cerveau. On va tenter de le résoudre simplement. Salukes #science #physique #profbucella #lasciencepeuttout
❗Σε πλήρη εξέλιξη η αναχαίτιση του στολίσκου για τη Γάζα από το ισραηλινό πολεμικό ναυτικό. Σκάφη ακτιβιστών που επιχειρούν να ''σπάσουν'' τον αποκλεισμό του παλαιστινιακού θύλακα περικυκλώνονται, ενώ μέλη των IDF κάνουν ρεσάλτο σε τουλάχιστον ένα πλοίο. Credit: Clash Report #skaigr #news
Record Market Shifts in India and Asia Amid Middle East Developments #finance #economy #business #markets
Can AI help plan your future? Our financial expert goes over the pros and cons of using artificial intelligence for retirement. Full interview>>http://www.kcra.com/article/making-cents-using-ai-to-plan-your-future/71298024
"Your Desire" is a song about circumstances... external instability that creates a sort of helpless feeling... the inability to get to where you want to be. Those synths are pure hardware goodness! It is available on...
Mesquite Fire Rescue officials are responding to a brush fire along the Virgin River, according to authorities. READ MORE: https://www.fox5vegas.com/2026/05/20/mesquite-fire-rescue-responds-brush-fire/
Gelmerbahn in Handegg, Switzerland is the steepest open-air funicular railway in Europe, & it feels like you’re riding a slow motion roller coaster! 🗓️ Open seasonally from June-October. #Switzerland #rollercoaster#slow #travel #Europe #adventure #fun
National targets are only as strong as the evidence behind them. 📊 From a farmer noticing fewer bees to a scientist mapping soil health, every observation is a piece of the puzzle. Diverse voices create goals that actually work. 🤝 See the journey! ⬇️
With the rain that we got, and more expected, we’re seeing closed/barricaded low water crossings like the one here that is prone to flooding.
Last time I jumped like this on skates I fell backward and bit my tongue. 🥴😬😂 Subscribe 👉 @funny_as_puck #Hockey #NHL #Habs
New podcast episode: Raindrop Workshop Gives AI Agents a Local Debugger Raindrop's MIT-licensed Workshop streams every token and tool call from your AI agent to a local browser dashboard, then lets Claude Code write and fix evaluations automatically. Full episode in the reply. #AI #Podcast #LLM
This are the #movies and #series that you gotta watch from the #UnitedStates and around the #world. Frankenstein the new #film adaptation from director Guillermo del Toro premieres october 17, 2025.
Liverpool head into a massive Merseyside derby with more injury issues, but Arne Slot backed his side to shake off the disappointment of PSG and their recent poor away record and get a crucial win on Sunday. Hear more in the press conference review coming later today.
Short piece from the tortoise shack podcast with @philipoconnor.bsky.social - On Violence - #JusticeForYvesSkalia www.patreon.com/posts/patron...
Holy shit look at that egg mass! At least I think thise are eggs. Or pyrosome? 🦀 having a buffet with whatever it is! @schmidtocean.bsky.social dive 925 part 3 #Doldrums #MarineLife
Privatization makes wait times worse. It just allows the wealthy few to jump the queue, pushing everyone else with greater needs further back. 😠 ~ Ontario Health Coalition #onpoli #healthcare #nursing #dougford #daniellesmith #markcarney #abpoli #cdnpoli #privatization
Catherine Bouvier Ellis, CEO and Co-Founder of Neuroendocrine Cancer UK, local patient Jane Aylott and host Steve Band explore neuroendocrine cancer in this podcast Spotify: bit.ly/432flq3 Apple: bit.ly/4ny1Uqk Amazon: bit.ly/4gOcOFG YouTube: bit.ly/4mLkhqr
Sunday: The drawing that changed everything. This one got me my first gallery show. 🔴 afrophilia-x.shop
Russian philosopher Dugin has proposed rationing internet access for Russians, granting it for good behavior.
Norovirus outbreak on the cruise ship Ambition in Bordeaux, France has sickened about 50 people with sudden vomiting and diarrhoea. It’s a reminder how fast basic hygiene can fail in closed spaces. #Norovirus #CruiseShip #PublicHealth
Two women are accused of making up the story that a 5-year-old was abducted in St. Louis County on Monday morning. Police said that a car was stolen, but there was no child missing.
Everyone’s eating “diet-friendly” food outside… but no one’s checking what’s inside. Hidden sugars, cheap oils, fake protein, that’s not health, that’s hype. Get a plan that actually works for you on pallaviqslimfitness.com
🚨 Limited time offer: Buy 1 Pass, Get 1 FREE for #VivaTech! Don't miss Europe's biggest startup & tech event, June 17-20 in Paris. Offer ends May 13 at 23:59 CEST. Grab your passes now 👇 https://vivatech.com/get-your-pass?ca=B1G1MAY-BS
Don’t let Republicans lie to you when they say they are the party of free speech. President Trump is trying to use the government to stifle dissent. He has attacked ABC, the NYT, and even publicly asked his AG Pam Bondi to prosecute his enemies. This is Watergate in plain sight.
Bart hat gerade einen zwölf Stunden Tag. Er steht gegen 4:30 auf und klettert zwischen 16 und 17 Uhr wieder in den Kobel. 🐿️😍 #squirrels #balkonhörnchen #eichhörnchen
"With a heartbeat, my heart is in Gaza. The Palestinian people are the most magnificent people I've ever met. If I had even a fraction of the courage they possess, I would die a happy person."
Lehrer:innen, Schüler:innen und Eltern sind sich einig: Der Fächerkanon muss in die heutige Zeit. AHS-Reform für eine starke, humanistische Bildung. 📚
Carbon capture is essential if we’re to survive. The fact of the matter is that CO2 levels need to be reduced to ~350ppm. The only way we can achieve that is to reduce emissions massively & increase natural carbon sinks to a point where we are decreasing atmospheric greenhouse gas concentrations.
Milei celebra los datos de pobreza que da su gobierno, por más que hayan sido cuestionados por varios institutos. Mientras tanto, en sus hechos alternativos, se ha reducido el número de pobres. ¿En cuántos? ¿Ocho? ¿Nueve? ¿Catorce millones? La cifra va cambiando conforme avanzan los días. 😆🤬👇
Good Morning ...☕😏✌️Happy Sunday! 🇦🇺❄️🏊♂️🏃♂️🏋️♂️🚴♂️🏄♂️👊☮️ #Sydney #Australia #winterswim #community #❄️winter It's officially 🇦🇺❄️Winter 2026 tomorrow...it was a nippy & crisp going for a run, swim & gym, Time to take out the heater, coat, ugg's & set up the fire pit🔥 🎬Sydney Film Festival... starts this week!🍿😏✌️☮️
Team HighballTV This or That: Director’s edition 🎬 Agnès Varda or Chantal Akerman? PTA or Ruben Östlund? Some choices reveal more than a Letterboxd profile ever could. 👀 #filmsky
Choose your starting place in the Johanna Kincaid Mystery Series. Listen to the Casefile Rollout. Oh. Pre-orders for Incident on the Right of Way are coming soon ⚡️ meanwhile COMMENT 1,2, or 3. I’ll be back to follow up 💙📚 #Booksky #WritingCommunity #Mystery #Thrillers #Writers❤️Reviews sound on ? 🎧
🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾 BIG BRO / LITTLE BRO HARPER & SCOUT LIFE LESSONS 🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾 SCOUT: Picnic at the lake! MOMMY: The stinky fish carcass! HARPER: And a sip of fine, dirty lake water. MOMMY: Scout, want to explore? SCOUT: I don't want to leave my beloved stinky fish carcass. 1/1
Thousands have gathered outside of Tesla for the Global Wide protest against Tesla and for the anniversary of Act Up!!
Treat yourself! Make it a Podcast Friday with the Women Road Warriors empowerment talk show podcast wherever you listen to podcasts or @ www.womenroadwarriors.com #CasualFriday #PodcastFriday #Podcast #Women
This is my impression of a straight man FaceTiming a beautiful woman
Women's motorsport blunder 💥 Pace truck becomes unexpected finish line An unforgettable moment in racing history! When the p… 🔥 More viral clips & AI art: YouTube: https://www.youtube.com/@RuViralEN TikTok: https://www.tiktok.com/@coolvidzcool Instagram: https://www.instagram.com/vidzcool/
Faltando pouco mais de uma semana para o início da Copa do Mundo, os jogadores da Seleção Brasileira, concentrados em Nova Jersey, EUA, concederam entrevista à imprensa nesta quarta-feira (3/6). O capitão da Seleção, Marquinhos, relembrou a experiência que teve jogando nos EUA no ano passado.