If an intelligent species lived on a planet with permanent cloud cover, maybe they'd never even conceptualize a broader universe.
This episode of the Hubblecast explores striking new Hubble observations of a variable star known as RS Puppis. This star is growing brighter and dimmer as it pulsates over a period of five weeks. These pulsations have created a stunning example of a phenomenon known as a light echo, where light appears to reverberate through the foggy environment around the star.
It took him about an hour to create the footage.
Is this a good hypothesis?
Quote from: Alex_O on 03/06/2024 02:31 pmIs this a good hypothesis?No. A good hypothesis is falsifiable. Your hypothesis boils down to "maybe some FTL stuff already exists and is moving around." This is simply too broad and poorly defined to be a scientific hypothesis.
The rest of what you said before this is just wild assumptions as a pseudo-justification for the hypothesis, they don't add anything.The rest of your post after this is a combination of irrelevant nonsense, and demonstrations that you have never bothered to do basic research on the topic of what FTL means in the context of special relativity, and other basic relevant topics.
Quote from: dustinthewind on 04/10/2017 01:07 amThe negative gravity speculation was just that, but speculating that dark matter ...Good catch! In the next posts I will detail this idea of primordial antimatter lacking, parallel universes and negative gravity in cosmology. A cosmological model exists, exactly behaving how you said, and has been published though peer review with recent (2014-2015) progress.
The negative gravity speculation was just that, but speculating that dark matter ...
FTL means literal time travel. you seem unaware of this, and make a bunch of arguments that make no sense as a result. a particle travelling backwards in time from a distance would like like it is just travelling backwards no "faster camera" would detect this as interesting, it would just look like something moving in the opposite direction, you would need to have something tell you about the illogical reversal of causality, which a line moving through a nebula wouldn't.
Also, it is trivial for a particle beam (such as that from a pulsar) to "appear" to be moving FTL, but this is just like motion of a shadow, the pulsar is rotating, and the fact that tracking that motion along a surface many lightyears away is FTL along that surface is simply meaningless, it just means that each particle was travelling below the speed of light, but in different directions for many years.
Here, we analyse archival multi-epoch VLBI imaging data at five frequency bands from 1.7 to 15.4 GHz covering a period of more than 25 years from 1995 to 2020. We constrain apparent proper motions of jet components in PKS 2215+020 for the first time. Brightness distribution modeling at 8 GHz reveals a nearly 0.02 mas yr−1 proper motion (moderately superluminal with apparently two times the speed of light)...
Quote from: CoolScience on 03/06/2024 10:18 pmQuote from: Alex_O on 03/06/2024 02:31 pmIs this a good hypothesis?No. A good hypothesis is falsifiable. Your hypothesis boils down to "maybe some FTL stuff already exists and is moving around." This is simply too broad and poorly defined to be a scientific hypothesis.Yes. My idea is based on solid physics and solid observational facts.
1st observational fact. There is a developed civilization on planet Earth that has scientific knowledge. And the known civilization is a new version....From the first observational fact it follows that in the universe there are many developed civilizations.
2nd observational fact. From the history of science it is known that all modern knowledge was created based on the results of astronomical observations.
3rd observational fact. The mystery of fast, applied space logistics, travel faster than the speed of light, has not yet been revealed.
4th observational fact. Prominent theories report that engines for moving matter at superluminal speeds, in practical designs, require the use of very high energies, equivalent to stellar masses.
I made a bold generalization and justified the research program. This is a proposal for falsification.
And then, I'm just trying to increase the probability. Recently, people have expanded their horizons of knowledge by observing pulsars in the light of relic gravitational waves.
In these posts, flux_capacitor actually described the history of the development of science that is trying to uncover the mystery of superluminal fast flights.
Quote from: CoolScience on 03/06/2024 10:18 pmFTL means literal time travel. you seem unaware of this, and make a bunch of arguments that make no sense as a result. a particle travelling backwards in time from a distance would like like it is just travelling backwards no "faster camera" would detect this as interesting, it would just look like something moving in the opposite direction, you would need to have something tell you about the illogical reversal of causality, which a line moving through a nebula wouldn't.I'm not trying to discuss time travel. But I can show the idea of a sensor for recording time waves that can transmit impulse from the future to the past. But this will be offtopic.
Revisiting a Core–Jet Laboratory at High Redshift: Analysis of the Radio Jet in the Quasar PKS 2215+020 at z = 3.572https://www.mdpi.com/2218-1997/10/2/97QuoteHere, we analyse archival multi-epoch VLBI imaging data at five frequency bands from 1.7 to 15.4 GHz covering a period of more than 25 years from 1995 to 2020. We constrain apparent proper motions of jet components in PKS 2215+020 for the first time. Brightness distribution modeling at 8 GHz reveals a nearly 0.02 mas yr−1 proper motion (moderately superluminal with apparently two times the speed of light)... Are you talking about this? The apparent motion in the image at the telescope's focus (or the phase velocity of the EM wave) can be faster than the speed of light, and as the article showed, there is valuable information in this data.