This Earth, the only true home i ever had and will ever have, is not my world, i’m just a passerby in here … it is yours and it is strange.
This scenario but we add a third object that will pass inside the Earth’s orbit between the Earth and the small object and very fast to escape Earth’s gravity and move away, so to momentarily exert a large gravitational force and to locally cancel (and more) Earth’s gravitational pull to slow down the small object to about zero near ground level.
Tidal effects will be catastrophic so please don’t do this to your home planet unless you really, really want to.
translation from the original :
https://mp.weixin.qq.com/s/aYZXOxxT8d5nwfye-oiZmA
Guoxing Aerospace launched 12 satellites in one rocket! The Space Computing Constellation 021 mission was a complete success!
On 2025 May 14, at 12:12 Beijing time, Guoxing Aerospace successfully launched 12 satellites for the Space Computing Constellation 021 mission using the Long March 2D carrier rocket at the Jiuquan Satellite Launch Center. The satellites entered their predetermined orbit, marking the successful launch of the world’s first space computing constellation.
The successful completion of the initial constellation launch mission will usher in a new era of “space computing” globally.
From 0 to 1, the world’s first space computing constellation was successfully launched.
The Space Computing Constellation 021 mission is the first launch of Guoxing Aerospace’s “XingSuan” plan and also the first launch of the Zhejiang Laboratory’s “Three-Body Computing Constellation”. This initial constellation is a joint construction of Guoxing Aerospace, Zhejiang Laboratory, and Neijiang High-Tech Zone, and consists of 12 computing satellites developed by Guoxing Aerospace, including:
Guoxing Aerospace’s “XingSuan” plan has launched its first constellation of 12 satellites in one orbit.
The mission code “021” refers to the transition from 0 to 1, symbolizing the breakthrough of achieving the world’s first space computing constellation.
“Artificial intelligence should not be absent from space due to a lack of computing power,” said Wang Jian, academician of the Chinese Academy of Engineering and director of Zhejiang Laboratory. The construction of the space computing constellation will enable a single satellite to play a greater value, which has far-reaching significance for the transformation of the aerospace industry.
( … the article is much longer and they have many photographs and a short video of the rocket launching the satellites
… if you want to continue translating it, go on … i made my small contribution ! )
… Recently we found evidence that spacetime curvature alone without the need for an event horizon leads to black hole evaporation (… this is pair generation !). …
Great ! Now tell me : what’s the implications of this on cosmological spacetime curvature ?
original article:
https://arxiv.org/abs/2410.14734
An upper limit to the lifetime of stellar remnants from gravitational pair production
Original free access article :
https://iopscience.iop.org/article/10.1088/1361-6633/adc82e
Gravity generated by four one-dimensional unitary gauge symmetries and the Standard Model
if i get even 0.01% of what this is, then, they really reached a “Theory of Everything” but it can’t be experimentally tested until quantum gravity things are detected.
you and i can now see that putting transistors in machines give them more functionalities. The same way i bet that, in the future, robots using artificial neurons, in ways we can’t describe yet, will exhibit potential you and i “fail” 😋 to see now
American Media under threat from dictator can’t write an honest headline. Read this new from free press here :
https://lemmy.world/post/29539988
Trump might claim China tariff victory – but this is Capitulation Day
Failure to see it is common amongst us limited humans.
Not for everyday m$off user
… The Canary channel is where Microsoft tries out its latest builds of Windows, and there’s no guarantee that anything in the Windows Insider program will ever see the light of day. …
i agree with all of this except, you know, when they will have to do maintenance … i guess they will be (they would be) more simply hauling the whole thing out to work at the surface of the sea … in this scenario the mechanical components would be at the top of the sphere and out of the water.
Perfect guess ! (afaik)
ρ(concrete) ≈ 2.5 tons/m³
so full sphere ≈ (2.5 x 382) tons = 955 tons
they have 400 t so the cavity removes :
955 - 400 = 555 t … so 7.51m diam. cavity
… so, yes 3/4m thick wall 😌👍 !
indeed i made a very simplified calculation not taking into account increase density of salted water nor increased density because of compressibility of water at 500 m deep. Basically i took 1m³(water) is 1 (metric) ton.
… a sphere nine metres in diameter and weighing 400 tonnes will be submerged off the coast of California at a depth of 500 to 600 metres. It will have a storage capacity of 0.4 megawatt hours (400 kWh) …
i will try a rough calculations : suppose we can have concrete at $100 per ton, then it’s a minimum investment of $40,000. Also suppose electricity is stored with a large added value of 10 cents per kilowatt hour, so, for every cycle a rough gain of $40. By these numbers, 1,000 cycles would pay for the concrete … so, it may look good considering they plan a life of about 50 years for such devices.
On the other hand if competitive battery storage cost only one cents per kilowatt hour (temporary in and out storage) and if concrete and fabrication goes up 10 times to $1,000 per ton then it is not economically viable anymore.
A good calculation of profitability would need to take into account the less than 100% energy efficiency of batteries cycling and of hydraulic energy cycling, … and so many more parameters which have to be studied.
… you’d need some massive …
from the srticle :
… a sphere nine metres in diameter and weighing 400 tonnes will be submerged …
Can you calculate the weight of a sphere of 9 m of displaced water ?
No ? Well, it is 382 tons.
So, the concrete sphere is already massive by itself. “You” don’t need any complicated anchoring.
Same goes with the rest of your mechanical engineering intuitions : you did not work in this domain or study it, did you 😆 ?
Also, stress cycling is bad on most material, yes. But here it is compressive stress and the geometry is symmetric. Without further study, i want to believe this thing has good potential and my intuitions tells me it looks nice. Time will tell 😁 !
Congratulation to both sides being mature enough to agree so rapidly to this ceasefire despite (or with the help of 😋 ?) “American mediation”.
Arguably about 100 fold improvement over "diffusion models” like OpenAl’s SORA and Google’s VEO 2.
Such major improvements are to be expected in my opinion in the future of artificial intelligence.
like this 21 seconds or better :
https://xeno-canto.org/193126
?
Heard them once and it was much better than any recordings !
Qwen3: Features, DeepSeek-R1 Comparison, Access, and More https://www.datacamp.com/blog/qwen3
for a more detailed article including benchmarks
il faut vraiment être débile : pour protéger la “profession de médecin” on va tuer les médecins … et hors de question de former 10 fois plus de médecins ou d’ips ou de déléguer … ce serait trop facile.
i am irritated about those cyber attacks and really sad about the invasion into Ukraine.
But i’m glad Europe is taking steps to strengthen its military and i’m puzzle about these stupidly vulnerable infrastructures.
FunHub !