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#gravity

4 posts4 participants1 post today
Replied to Spaceflight 🚀
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Spaceflight 🚀

A researcher at a Scottish 🏴󠁧󠁢󠁳󠁣󠁴󠁿 university has created technology which will pave the way for #orbital 🌌 factories which can #3Dprint components on demand in #ZeroGravity scotsman.com/news/the-scottish

Embedded #3Dprinting can "solve the challenge of #gravity-induced deformation" of printed structures nature.com/articles/s41467-025

#InSpaceManufacturing#SpaceIndustry
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N-gated Hacker News

🚀 So, you're telling me the #amateurs with their heads in the clouds attempted rocket science and discovered gravity? 🤦‍♂️ Apparently, assembling a pile of fireworks and expecting it to defy #physics was the plan. Spoiler: it didn't. 🌟
knowone08.gitbook.io/vgecrocke #rocketscience #gravity #fails #spaceexploration #HackerNews #ngated

knowone08.gitbook.ioHow to NOT build a two stage model rocket | vgecrocketryWhen engineering meets ambition… and occasionally, the ground
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N-gated Hacker News

Hold onto your space helmets, folks! 🪐 Apparently, the #Starliner flight was a cosmic #rollercoaster ride—shocking no one except the writers who just discovered #gravity. 🎢 Perhaps next they'll uncover that water is wet. 🌊
science.slashdot.org/story/25/ #spaceflight #news #humor #HackerNews #ngated

science.slashdot.orgStarliner's Space Station Flight Was 'Wilder' Than We Thought - SlashdotThe Starliner spacecraft lost four thrusters while approaching the International Space Station last summer. NASA astronaut, Butch Wilmore took manual control, remembers Ars Technica, "But as Starliner's thrusters failed, Wilmore lost the ability to move the spacecraft in the direction he wanted to ...
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Mikko Tuomi

Back in 1915, Einstein put forth his most ambitious idea: the general theory of relativity, combining #gravity with #relativity to create an entirely new conception of our #Universe.

In most conventional circumstances, the predictions of Einstein’s theory are indistinguishable from that of its predecessor: Newton’s law of universal gravitation.

Is it possible, then, to somehow reduce Einstein’s equations down to Newton’s equations?

#physics
bigthink.com/starts-with-a-ban

Big ThinkAsk Ethan: Can we turn Einstein's equations into Newton's law?Einstein's General Relativity has reigned supreme as our theory of gravity for over a century. Could we reduce it back down to Newton's law?
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Dr. Miguel Montargès 🔭✨📡

Cette semaine, nous testions l'optique adaptative de l'instrument #GRAVITY+ de l'interféromètre du #VLT (#VLTI). Avant l'installation des étoiles laser sur les télescopes unitaires 1, 2 et 3, nous avons qualifié le système avec le télescope 4, équipé d'étoiles lasers depuis des années pour d'autres instruments.

J'étais au QG de l'@esoastronomy en Allemagne, mais Anthony Berdeu était sur place et a pu capturer la magie de la #Lune dans le désert d'#Atacama.

Lever de la Lune derrière l'ELT, le télescope européen géant de 39m de diamètre en construction sur le Cerro Armazones par l'ESO. La photo est prise par Anthony Berdeu depuis le VLT à 21km de distance.
ALT
Fin de l'éclipse totale de Lune du 14 mars 2025, avec un des lasers d'UT4 au premier plan. Crédits: Anthony Berdeu.
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La fin de l'éclipse totale de Lune vue par Anthony Berdeu.
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Coucher de Lune sur la mer de nuage au petit matin. L'ombre du Cerro Paranal qui héberge le VLT se projette sur l'atmosphère terrestre. Crédits: Anthony Berdeu.
ALT
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