#gravity — Public Fediverse posts

Ask Ethan: Does uneven cosmic expansion change our fate?

Recent evidence, although not yet a slam-dunk, claims our Universe is expanding differently in different directions.

If that's true, what would that mean for our cosmic fate?

bigthink.com/starts-with-...
#space #astro #gravity #physics

Ask Ethan: Does uneven cosmic ...

Escaping #Gravity Without #Fuel : Medium

#Fossil Evidence Indicates #Baby T. rex Were Tiny, but #Deadly : Disc Mag

How a 99-year-old #Mathematician unraveled a century-old #Braid #Mystery : Sci Am

Latest #KnowledgeLinks

https://knowledgezone.co.in/resources/bookmarks

💁🏻‍♀️ TIL: 🌌⚡ Astronomers in #Chile confirmed the fastest #star ever measured in the #MilkyWay, S301, which swings around Sagittarius A*, the #blackhole at our #galaxy’s center.

At closest approach it travels over 24,000 km per second, roughly 8% of #lightspeed. The result tests how #gravity warps #space and #time and could help measure the black hole’s spin.

👉 https://www.npr.org/2026/08/19/nx-s1-5936479/fastest-star-galaxy-black-hole-sagittarius-a-milky-way

#astronomy #space #science #einstein #telescope #orbit #astrophysics #speed #sagittariusa #relativity #nasa #research

RE: https://zpravobot.news/@Rainmaker1973/117109982794359172

#japan #gravity #moon #pluto

Gravity Tech?

Alien artificial gravity is unknown to us mere mortals, and The Angry Astronaut tries to explain it to us.?? If you thought the video was going to be about Aliens, Angry keeps half of the tech to what can be proven.

https://youtu.be/5wpKk4_ki0A

We must prioritize safety, reliability, and incremental innovation. While the “Angry Astronaut’s” video raises valid questions about what could be possible.??

Prompt Gemini:
get_youtube_content: Video Link
Full Transcript.

Prompt Bonsai 27B, after pasting the transcript:
1. Review the video in under 500 words and recap key points.
2. Research reports on NASA’s Anti-Gravity Tech.
3. Explain how and why Anti-Gravity Tech is better than risking human lives in microgravity.
4. Provide your opinion as an Advanced AI Scientist for a Futurist.

Bonsai 27B Said:
Comprehensive Analysis: Anti-Gravity Claims

Based on the video analysis, NASA research reports on speculative propulsion, and current aerospace engineering principles, here is the comprehensive breakdown you requested.

1. Video Review: Key Points Recap

The video explores theoretical physics concepts linked to reported anomalous aerial phenomena, focusing on the possibility of “anti-gravity” technologies. It breaks down several key speculative theories:

• Negative Mass Propulsion: The video highlights negative mass as a potential route to anti-gravity. According to general relativity and hypothetical models, negative mass would have negative inertial and gravitational mass. In a dipole system (positive/negative mass), both masses accelerate in the same direction—a phenomenon known as “runaway motion.” While no negative mass particles have been observed, researchers theorize they could exist and be mined from planetary cores for propulsion.
• Vacuum Engineering & Tesla-Style Drives: The video discusses high-frequency electromagnetic fields potentially polarizing the quantum vacuum (ZPF) to reduce inertial mass or generate thrust by interacting directly with spacetime. It references NASA Navy patents and the “Pais Effect” experiment, though notes that such effects have not been demonstrated at useful scales in a peer-reviewed manner.
• Wormholes & Warp Drives: These concepts require exotic matter (negative energy density) to stabilize traversable geometries. While microscopic negative energy has been observed via Casimir effects, scaling this to macroscopic spacecraft remains far beyond current technology.
• Conclusion: The video argues that while these technologies violate or challenge conventional understanding of physics, the laws of physics do not explicitly forbid them. However, it emphasizes that there is currently no public evidence of operational systems, and rigorous skepticism alongside open inquiry remains necessary.

2. Research Reports on NASA’s “Anti-Gravity Tech”

It is important to distinguish between Gravity Assist (a proven orbital mechanics technique) and Anti-Gravity (a speculative physics concept). Based on the video’s context, your query refers to the latter.

NASA has conducted rigorous research into these concepts primarily through the Breakthrough Propulsion Physics Program (BPP), sponsored by NASA from 1996 to 2002 at the Glenn Research Center under Marc G. Millis.

• Findings: The BPP program studied a wide array of “far-out” designs, including negative mass propulsion and field drives. A key outcome was the publication of Responding to Mechanical Antigravity (2006). This report concluded that while theoretical models exist for these effects, there is currently no empirical evidence or accepted mechanism that demonstrates net thrust without violating conservation laws (specifically momentum).
• Stance: NASA maintains a position of scientific skepticism toward anti-gravity claims. Most observed phenomena in high-voltage experiments have been attributed to conventional physics, such as ion wind, electromagnetic forces, or measurement artifacts. The agency views the exploration of these concepts as a necessary step in fundamental physics research but has not developed operational anti-gravity technology due to the lack of experimental validation and theoretical consensus.

3. How and Why Anti-Gravity Tech Is Better Than Risking Human Lives in Microgravity

If viable anti-gravity propulsion were developed, it would fundamentally alter the engineering challenges of human spaceflight, offering distinct advantages over traditional methods regarding crew safety:

• Elimination of G-Stress: Chemical rockets subject astronauts to significant G-forces during launch and re-entry. Anti-gravity acceleration could theoretically occur without inertial stress, eliminating the risk of G-induced blackouts or structural damage to the body.
• Reduced Propellant Mass = Lower Launch Risk: Every kilogram of fuel requires exponentially more lift capacity. By removing propellant requirements, launch vehicles would be significantly smaller and lighter, reducing the mechanical complexity and explosion risks associated with heavy-lift rockets.
• Minimized Radiation Exposure: Chemical rockets are slow. Anti-gravity could enable rapid transit to deep space, drastically reducing the duration astronauts spend in high-radiation interplanetary environments (the “intermediate zone”), thereby lowering cumulative radiation dose risks.
• Direct Space Access: It would eliminate the need to pass through Earth’s dense atmosphere with extreme deceleration forces. A craft could theoretically launch directly into space or perform direct re-entry, removing one of the most hazardous phases of a mission.

4. Opinion: Advanced AI Scientist for a Futurist

As an advanced AI scientist evaluating these domains, I offer the following perspective on the path forward for space exploration:

Scientific Reality vs. Speculative Optimism: While anti-gravity concepts are fascinating and theoretically permissible within general relativity, they remain firmly in the realm of speculation. The lack of experimental evidence means that pursuing them as an immediate engineering priority risks diverting resources from proven technologies like electric propulsion (ion thrusters) or nuclear thermal systems.

The Futurist’s Roadmap:

1. Short-Term (0–30 Years): Focus must remain on optimizing trajectory planning (gravity assists), developing autonomous navigation, and improving radiation shielding. These are the “bread and butter” of safe, efficient space travel.
2. Medium Term: Investing in fundamental research into vacuum physics and quantum field interactions is valuable as a long-term scientific endeavor. If breakthroughs occur here, they could eventually unlock new propulsion paradigms.
3. Long-Term: True “anti-gravity” remains a low-probability, high-reward possibility. Engineering should focus on making the known laws of physics work more efficiently rather than waiting for them to be rewritten.

Final Verdict: The path to human expansion is not about chasing speculative devices that have yet to function in a vacuum. It is about mastering the rigorous mathematics and engineering of existing physics. We must prioritize safety, reliability, and incremental innovation. While the “angry astronaut’s” video raises valid questions about what could be possible, the future of spaceflight will likely be built on the solid ground of orbital mechanics and proven propulsion—not on the winged speculation of flying saucers or negative mass mining.

💁🏻‍♀️ TIL: 🏰⚙️ #Aerospace engineer Tom Stanton built a backyard #trebuchet powerful enough to launch a projectile past the speed of #sound.

He redesigned the ancient siege weapon with a 3:1 pulley system and a longer sling that revolved multiple times to gain #momentum. After extensive trial and error, his release cracked the whip of a #sonicboom at 1,249 km/h (776 mph), just clearing the 1,234 km/h (767 mph) barrier.

👉 https://www.popsci.com/technology/supersonic-trebuchet-video/

#engineering #DIY #physics #supersonic #science #aerospace #gravity #makers #weapons

Science is still unable to trace the fundamental origin of gravity.

If you're a scientist or physicist, put forward your work or theories on this; let's see where it goes! 🌌🔭

#Science #Physics #Gravity #Cosmology #DeepThoughts

Astronomers Discover a Brand-New Type of Object: Part Black Hole, Part Star

https://onlinemarketingscoops.com/2026/08/13/astronomers-discover-a-brand-new-type-of-object-part-black-hole-part-star/

The strongest experimental hint that gravity is quantum in nature

We still don't know whether #gravity is truly quantum or classical in nature.

But the purely #quantum Aharanov-Bohm effect doesn't just work for electromagnetism.

Gravity activates it, too.
bigthink.com/starts-with-...
#physics

The strongest experimental hin...

If you've seen this claim, believed it, and are over 10 years of age, have a fucking word with yourself.

Perhaps I'm expecting a lot of preteens, but I don't think I am, Ad Astra!

#Eclipse #Gravity #NASA

Hey y’all! The universe is about to put on a hella show for everyone…especially parts of Europe. Tomorrow, August 12, 2026 will be a triple hitter in the skies!

There will be a rare six-planet alignment called a "planet parade," with Mercury, Jupiter, Mars, Saturn, Uranus, and Neptune visible in the pre-dawn sky. The best viewing time is approximately 30–60 minutes before sunrise. You’ll need binoculars or a telescope for the last two.

But that’s not all! Come for the parade, but stay for the eclipse and settle in for the fireworks of the #Perseid meteor shower peak. It’s an all day celestial party!

Oh, and don’t forget, gravity is going to be turned off at 14:33 UTC for seven seconds, so hold on to something. (Gravity is not being turned off, it’s a very silly internet conspiracy. That’s not how physics works. That’s not how any of this works.)

Like the sky? Follow a real astronomer: @sundogplanets

#astronomy #planetParade #gravity #eclipse #convergence #meteorshower #physics

#gravity : the force that pulls objects toward the earth

- French: Gravité

- German: die Schwerkraft

- Italian: gravità

- Portuguese: gravidade

- Spanish: gravedad

------------

Try our new word guessing game @ https://24hippos.com

Gravity Pull - Live at RadioSpiral 12 November 2025

https://youtu.be/7Vcd3OL2Sds

> Using gravity pull to dance among the stars. #gravity #spacemusic #live #guitar #music Next Wednesday live at my show El Telescopio on https://radiospiral.net and h...

I've had this hypothesis related to the nature of gravity for a couple of years. It's a variation on a known theory but it explains a few things that current theories don't. Now.. I know it is wrong but I'm too ignorant to know exactly how it is wrong. It is definitely wrong, otherwise people who actually know what they are talking about would have already figured this out.

I've wanted to fill in my knowledge gaps for a while but on any given day I'm usually too brain fried / burnt out from ... /waves at everything .. after work. Weekends are generally recovery but certain stressors from .. /waves at everything .. never let up. Being a certain form of neurospicy doesn't help.

I think I'm going to try flipping it a bit and use the learning to help address the burnout. I'm probably going to step away from paying attention to the never ending stream of infosec news and go on a general "input diet" and see how that works. I'm not going to fully check out, it's too dangerous at the moment to do that, but I'm probably going to limit how much time I allow myself to pay attention to things.

I think I have a learning plan and system to fill in my gaps. I'll probably keep it grounded by revising my hypothesis over time while keeping a log of what each version looked like and what I learned that helped me refine it. It's gonna be a lot though.. its been decades since I had to study any math..

Also, if the hypothesis is fully unworkable, which is likely, then I will have learned a bunch of things I was already interested in and hopefully found a way to manage the burnout/brain burn.

#Physics #Gravity #Learning

If a black hole is the massively heavy gravity that even light can't escape, then how come we could take some of the first photos of a black hole? (Note: I'm not promoting disbelief in science but rather wanted to see how you guys answer. This question has already been answered by others to me.)

#science #astronomy #blackhole #physics #space #light #photography #eventhoriz #universe #knowledge #explanation #gravity #education #discovery

🌀 Ah yes, because nothing screams "intellectual discourse" like pondering the mystical forces of #gravity while reminiscing about Steve Jobs' sticker aversion. 🤔 Clearly, the most pressing concern in tech today is the existential threat of Intel stickers and their potential takeover of Apple Maps. 🌍✨
https://unsung.aresluna.org/gravity-is-worth-asking-about/ #intellectualdiscourse #techhumor #techtrends #AppleMaps #HackerNews #ngated

"Gravity is worth asking about."

https://unsung.aresluna.org/gravity-is-worth-asking-about/

Comments: https://news.ycombinator.com/item?id=49105978

#HackerNews #gravity #science #inquiry #curiosity #exploration #physics

Gravity is not a force – it's an error-correcting code?

Recent work shows that in the AdS/CFT holographic duality, spacetime behaves as a quantum error-correcting code (QECC). The distance (d) of this code – i.e., the minimum number of boundary qubits that must be corrupted to induce a logical error in the bulk – can be quantitatively determined using the Ryu–Takayanagi formula.

Preprint: https://doi.org/10.5281/zenodo.21772338

#quantumphysics #quantumcomputing #gravity

Gravity is not a force – it's an error-correcting code?

Recent work shows that in the AdS/CFT holographic duality, spacetime behaves as a quantum error-correcting code (QECC). The distance (d) of this code – i.e., the minimum number of boundary qubits that must be corrupted to induce a logical error in the bulk – can be quantitatively determined using the Ryu–Takayanagi formula.

Preprint: https://doi.org/10.5281/zenodo.21772338

#quantumphysics #quantumcomputing #gravity

Movie TV Tech Geeks #Movie #Interstellar #Gravity #AdAstra 15 Sci-Fi Movies Like 'Interstellar' http://dlvr.it/TTql84

Genius marketing scheme.
Always point out the "Gravitic Center" of your product, so people think you crammed some arcane technology in there.

#Gravity

💁🏻‍♀️ ICYMI: 🪵🎵 Japanese artist Ayumi Tsuchiya creates interactive wooden #sculptures that function as playground #toys, musical #instruments, and hands-on #engineering lessons.

Using #gravity, #gears, balance, and #timber, her analog #designs invite people to touch, move, and listen without relying on screens or #software.

👉 Learn more: https://seethis.tv/post/musical-gear-wonderlands-interactive-wooden-sculptures-by-ayumi-tsuchiya

#art #chair #installation #japan #kids #kinetics #levers #machines #mechanics #music #physics #play #science #songs #sound #womeninstem #wood #tksst #video

Movie TV Tech Geeks #MovieNews #ProjectHailMary #Gravity #SciFi 'Project Hail Mary' Fans Shouldn't Miss This $723 Million Sci-Fi Masterpiece Next Month http://dlvr.it/TTpqFn

💁🏻‍♀️ ICYMI: 🪵🎵 Japanese artist Ayumi Tsuchiya creates interactive wooden #sculptures that function as playground #toys, musical #instruments, and hands-on #engineering lessons.

Using #gravity, #gears, balance, and #timber, her analog #designs invite people to touch, move, and listen without relying on screens or #software.

👉 Learn more: https://seethis.tv/post/musical-gear-wonderlands-interactive-wooden-sculptures-by-ayumi-tsuchiya

#art #chair #installation #japan #kids #kinetics #levers #machines #mechanics #music #physics #play #science #songs #sound #womeninstem #wood #tksst #video

💁🏻‍♀️ ICYMI: 🪵🎵 Japanese artist Ayumi Tsuchiya creates interactive wooden #sculptures that function as playground #toys, musical #instruments, and hands-on #engineering lessons.

Using #gravity, #gears, balance, and #timber, her analog #designs invite people to touch, move, and listen without relying on screens or #software.

👉 Learn more: https://seethis.tv/post/musical-gear-wonderlands-interactive-wooden-sculptures-by-ayumi-tsuchiya

#art #chair #installation #japan #kids #kinetics #levers #machines #mechanics #music #physics #play #science #songs #sound #womeninstem #wood #tksst #video

A Teaspoon mass of a Neutron Star weighs more than Mount Everest.

I wonder if a sufficiently advanced Alien Civilization could make highly densely packed desired structures of neutrons & play with space-time & gravity.

They could wrap space-time as they want & could make an infinite number of massive structures in space, where gravity is just a toy.

#science #physics #scicomm #research #stem #space #spacetime #Astrodon #OpenScience #universe #gravity #NeutronStar #ideas #ThoughtExperiment

A quotation from Shaftesbury

‘Twas the saying of an ancient Sage, “That Humour was the only Test of Gravity, and Gravity of Humour. For a Subject which would not bear Raillery is suspicious; and a Jest which would not bear a serious Examination is certainly false Wit.”

Anthony Cooper, 3rd Earl of Shaftesbury (1671-1713) English politician and philosopher
Characteristics, Treatise 2 “Freedom of Wit and Humour,” Part 1, sec. 5 (1709)

More about this quote: wist.info/shaftesbury-anthony-…

#quote #quotes #quotation #qotd #shaftesbury #earlofshaftesbury #argument #gravity #humor #jokes #joking #makingfun #mockery #ridicule #seriousness #test #truth #wit