Yeah I have to admit that this is one of the things about all this that has really bugged me.
The Nature of the Universe, Time Travel and More...
- Thread starter Will The Serious
- Start date
Yeah I have to admit that this is one of the things about all this that has really bugged me.
Not knowing the whole story, or even a good half of it, I can imagine, in the case of Egypt, that their tourist economy and their national identity are very closely tied to the integrity of the pyramids, the Sphinx, and other ancient relics that have already been explored, exploited, and have their history of abuse, as well as mishandling. These things would understandably leave them reluctant to allow any excavation that could possibly threaten their current trove of archeological attractions. The reports of newly discovered structures deep beneath the pyramids do not seem to be solid enough to risk a major dig so close to such fragile structures as the 5000 year old pyramids.
In the case of Göbekli Tepe, the stopping of excavation and the subsequent planting of orchards over the dig site is inconsistent with the other amazing archeological sites they have uncovered and opened up for tourist, of which three I have had the pleasure to visit. On the other hand, there may be concerns over aggressive activities along the Syrian and Georgian borders that make covering up, and even hiding the site a reasonable decision. It is certainly easy to come to any conclusion a conspiracy theorist wants, when a government does something so inexplicable and won't discuss their reasons truthfully. I honestly doubt there could be found anything at Göbekli Tepe that would change our historical narrative in a way that would threaten Islamic culture. I don't think they are tied to Creationism or even the biblical accuracy of Genesis.
-Will
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Perhaps so. The reporting does appear polarised and biased from whichever side one listens. Some people seem very invested in overturning the established narrative and the remainder in preserving it. There is increasing evidence that the story of mankind is more complex and dates back further than what is told in textbooks. Resistance of orthodox* beliefs - whether religious, political or academic - to change is very human, if depressing. However, it doesn't affect me personally so I just have to shrug.
* ETA: Lowercase meaning - "conforming to established doctrine".
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Metal object in a labyrinth?
That's bull---wait a minotaur....I smel burn toast.
"The chatterbot publiusr has been recalled..."
The Sims next door
phys.org
Come fly with me,
phys.org
That's bull---wait a minotaur....I smel burn toast.
"The chatterbot publiusr has been recalled..."
The Sims next door
The simulation hypothesis: Mathematical framework redefines what it means for one universe to simulate another
The simulation hypothesis—the idea that our universe might be an artificial construct running on some advanced alien computer—has long captured the public imagination. Yet most arguments about it rest on intuition rather than clear definitions, and few attempts have been made to formally spell...
Come fly with me,
Video: Fly through Webb's cosmic vistas
On the launch anniversary of the NASA/ESA/CSA James Webb Space Telescope, ESA presents a unique compilation of zooms into stunning cosmic views.
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Interesting interview with Stephen Wolfram, where he discusses his ideas:
This article appeared on my Googke front page. https://interestingengineering.com/science/china-hypergravity-machine-record
As far as compressing space/time, the articles don't really cover much to explain what that means. Both the spinning and the increased hyper acceleration could have an effect upon atomic harmonics such that the appearance of a compression in time might result, but how does this centrifugal acceleration match the compression of space and time the way gravity does? What are the implications?
With Relativity, aren't we measuring time and distance from one relative frame of reference or another? How does that work when the outbound traveler is soon the inbound traveler? I am assuming, because the article doesn't say, that an atomic clock was put in the centrifuge to measure time distortions. If distance is distorted in the centrifuge, do the distortions disappear and distances return to normal when the centrifuge is shut down?
It is a pretty bold claim that space-time is changed by a machine, then, to spend just half a paragraph on the the distortion of space-time within the article. I tried digging further into the subject, but all the articles I found were just a repeat of the interestingengineering.com article.
-Will
After reading a NASA .pdf publication [https://ntrs.nasa.gov/api/citations/20070001008/downloads/20070001008.pdf] about artificial gravity, the simulated gravity in a centrifuge is not gravity and it couldn't simulate "real-world" conditions because of things like the Coriolis effect and a gravity-like force gradient.
Any movement would cause a distinguishing effect on the object subjected to the centrifugal acceleration, very different from the linear acceleration of gravity.
As far as compressing space/time, the articles don't really cover much to explain what that means. Both the spinning and the increased hyper acceleration could have an effect upon atomic harmonics such that the appearance of a compression in time might result, but how does this centrifugal acceleration match the compression of space and time the way gravity does? What are the implications?
Does this mean force compresses time and distance? Or is it acceleration, or speed that compresses time and distance?
With Relativity, aren't we measuring time and distance from one relative frame of reference or another? How does that work when the outbound traveler is soon the inbound traveler? I am assuming, because the article doesn't say, that an atomic clock was put in the centrifuge to measure time distortions. If distance is distorted in the centrifuge, do the distortions disappear and distances return to normal when the centrifuge is shut down?
It is a pretty bold claim that space-time is changed by a machine, then, to spend just half a paragraph on the the distortion of space-time within the article. I tried digging further into the subject, but all the articles I found were just a repeat of the interestingengineering.com article.
-Will
The article states that its author used to be a molecular biologist. However, I would suspect that AI was used to help write it, judging by its sloppy style. There is no doubt that special relativistic effects occur, and that if an atomic clock could survive the acceleration, it would record the time dilation, being given by the Lorentz factor ɣ = 1/√(1-v²/c²), where v is the speed (not velocity, as its vector is constantly changing) and c is the speed of light.
Centrifugal acceleration is a pseudo force like the Coriolis and Euler forces, which are also the result of an object's motion being experienced from a non-inertial frame of reference. There is no induced gravity field that distorts the space-time metric. Any time dilation (or other relativistic effects) arise from relative motion in such cases.
This is covered by the clock postulate:
Confirmation is performed every day in particle accelerators around the world. Decay rate of particles changes according to the relative speed, not the acceleration. See, for example:
For atomic clocks that move at altitude relative to the Earth's surface, time dilation due both to relative motion and to differences in gravitational acceleration has been confirmed by measurement back in 1971:
en.wikipedia.org
Centrifugal acceleration is a pseudo force like the Coriolis and Euler forces, which are also the result of an object's motion being experienced from a non-inertial frame of reference. There is no induced gravity field that distorts the space-time metric. Any time dilation (or other relativistic effects) arise from relative motion in such cases.
This is covered by the clock postulate:
Confirmation is performed every day in particle accelerators around the world. Decay rate of particles changes according to the relative speed, not the acceleration. See, for example:
For atomic clocks that move at altitude relative to the Earth's surface, time dilation due both to relative motion and to differences in gravitational acceleration has been confirmed by measurement back in 1971:
Hafele–Keating experiment - Wikipedia
Someone has come up with a proposal for testing whether gravity is a quantum field and so must be mediated by gravitons. Intriguing, but it requires some big advances in entangling photons.
So...if photons can be entangled with gravitons...is starlight itself causing universal expansion?
Interesting
hackaday.com
Interesting
Faraday Effects Emerging From The Optical Magnetic Field
As an electromagnetic radiation phenomenon, it’s perhaps not so surprising that light is affected by a magnetic field. This Faraday effect (FE) has been used since its discovery by [Michael F…
hackaday.com
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Not something I've considered nor do I feel inclined to investigate. However, there is this fairly recent paper that demonstrates that people find it a topic to which it's worth devoting their career:
In this hypothesis, neither dark energy nor cosmological expansion exist and dark matter perhaps consists of virtual gravitons. It seems to be a variation of the old tired light hypothesis and assumes that photons have a tiny intrinsic rest mass. That's the problem with cosmology - it's full of theories that are not only difficult to falsify- almost no-one has the time or money to do so in any case and several competing theories might still describe the same observations. Which is valid? Who knows? Certainly not me.
I think that could be said, with or without entanglement. Though, probably not by itself.
-Will
One first has to understand what is meant by entanglement. We're not even sure gravity is fundamentally quantum in nature or that gravitons exist to be entangled. Penrose thinks not, and he also doubts unitarity when gravity meets QM. It's probably worth examining such questions experimentally more than building ever bigger particle colliders.
