UFOs spotted off Irish coast under investigation • Hacker News Board

Re: UFOs spotted off Irish coast under investigation

#271

Post by Balgair » Tue, Nov 13, 2018, 8:31 PM UTC

smaili wrote: post #66

minota wrote: post #33

Transcribing the interesting bits from 18:15 Man A (ATC?): There's nothing showing on either primary or secondary Woman A: Ok, it was moving so fast. [Inaudible] Man A: Alongside you? Woman A: Yes, it was rapidly [inaudible] bright light and then it just disappeared at a very high speed. I am still wondering. Didn't think it was likely collision course. Wondering what sort it could be. Man B: Meteor or another object…

I know meteors seems to be a common theory, but do they normally travel that fast?

https://en.wikipedia.org/wiki/Hypersonic_speed

The relevant regime for astronomical entities is in above the 'high-hypersonic' and into 're-entry speeds' (uber-sonic?). These are above Mach 25.

At these speeds, not only is the air no-longer considered an ideal gas, nor a two-temperature ideal gas, nor a dissociated gas (O2 and N2 become O and N along the wings), nor an ionized gas (electron temperature must now be considered), but rather a radiation dominated gas. Modeling these radiation dominant gases is very hard. As you increase the number of volumes to model, the computation load grows exponentially.

Re: UFOs spotted off Irish coast under investigation

#272

Post by nradov » Tue, Nov 13, 2018, 8:39 PM UTC

cmroanirgo wrote: post #269

nradov wrote: post #253

Earlier quoted context omitted.

That's all just circumstantial evidence subject to interpretation, not proof .

I can't disagree, but at what point can sworn testimonies be allowed? 100, 200, 500? What about their 'respectability'? To dismiss such a mountain of evidence is unwise, I feel. There are also hundreds of government documents on his website, discussing various et issues. Most of the testimonies talk about how there is a systemic coverup going on. What if they can provide proof, but due to high classification, it can'…

What specifically is unwise? I don't see any negative consequences of being skeptical.

And the notion of some grand government conspiracy is just ludicrous on the face of it. No secret could be kept that long by so many people without some more reliable evidence leaking out.

Appeals to authority in terms of the respectability of various witnesses are meaningless. A more plausible explanation is that they simply misinterpreted what they experienced, possibly primed by the ubiquity of aliens and spacecraft in popular fiction going back almost a century. Look how many people have been wrongfully convicted of crimes based on sincere but faulty eyewitness testimony.

Re: UFOs spotted off Irish coast under investigation

#273

Post by jmts » Tue, Nov 13, 2018, 9:48 PM UTC

midrus wrote: post #147

chris1993 wrote: post #84

Earlier quoted context omitted.

Similar lights in the Australian desert appear related to inversion layers refracting headlights over the horizon ( http://www.abc.net.au/science/news/stories/s818193.htm )

That's what the Men in Black would say.

Or in this case (if you check the researcher's surname), the Ministry of Magic.

Re: UFOs spotted off Irish coast under investigation

#274

Post by karmakaze » Tue, Nov 13, 2018, 10:35 PM UTC

Cthulhu_ wrote: post #210

russdill wrote: post #148

Earlier quoted context omitted.

I think it's bizarre that the fact that we have absolutely zero evidence for aliens actually gives a little weight to things like the zoo hypothesis.

One gloriously eldritch way to look at that issue is: can an ant see us? Are they aware of our existence?

Not really the same unless ants have mapped out their universe with little left out. Unless it's just that we can't see far enough or into dark matter.

Re: UFOs spotted off Irish coast under investigation

#275

Post by scottlocklin » Tue, Nov 13, 2018, 10:45 PM UTC

reason-mr wrote: post #261

russdill wrote: post #251

Earlier quoted context omitted.

If you have a dyson sphere, it glows very brightly in lower wavelengths, such as IR. We don't see that in voids. Additionally, looking back into cosmic history, we can see the formation of voids in the very early universe and their expected expansion.

I find the assumption that any advanced civilization is going to emit external electromagnetic radiation and/or be warm quite curious. Most quantum computing work is at low temperatures, and work on photonics (for example : http://science.sciencemag.org/content/361/6397/57 )is coming along nicely. If we assume an extropian approach of uploading into a more advanced substrate, I find it more likely that they would be…

Pretty difficult to beat the laws of thermodynamics.

QC is a meme.

Re: UFOs spotted off Irish coast under investigation

#276

Post by yesenadam » Tue, Nov 13, 2018, 10:54 PM UTC

a1369209993 wrote: post #270

hderms wrote: post #250

Earlier quoted context omitted.

I think it's like a big-o type argument about rates of growth of approximately spherical areas in 3d space

That combined with the aforementioned thousands-to-one odds that a life form that hasn't yet developed into a relativistically expanding sphere also hasn't developed sapience. (I'm not using the mathematical definition of "almost all" of course.) There would (probably) also be a significant number of cases where two spheres run into each other , but it's debatable whether most of those count as first contact events (…

I feel like I was given many more strange assumptions, without any of the things I was asking about being addressed. Your "of course", which I didn't understand, in a few different ways, makes me think I'm talking to experts. I understood almost nothing you wrote. But well, like I said, I don't buy all these assumptions. Reading this is like reading those unhelpful wikipedia pages that only make sense if you already understand what it's saying. And your way of talking as if it's all obviously true, (e.g. "let me remind you") raises my suspicions that it's not.

Re: UFOs spotted off Irish coast under investigation

#277

Post by philipkglass » Wed, Nov 14, 2018, 12:24 AM UTC

Gustomaximus wrote: post #211

eof wrote: post #156

Earlier quoted context omitted.

What I want to know is, do they tend to "bank and climb away"

Do meteors ever dip into the atmosphere, light up, and skip away? Like a skipping stone?

Basically, yes. Here's one famous example:

https://en.wikipedia.org/wiki/1972_Great_Daylight_Fireball

http://www.phys.ncku.edu.tw/~astrolab/mirrors/apod_e/image/0...

Re: UFOs spotted off Irish coast under investigation

#278

Post by cvwright » Wed, Nov 14, 2018, 1:14 AM UTC

HillaryBriss wrote: post #123

matthewwiese wrote: post #59

Earlier quoted context omitted.

From a rational standpoint, I generally subscribe to the selection bias you (and Scriptor in a separate reply) raise as #1. However, for the sake of discussion, let's operate under the assumption these sightings are legitimate/noteworthy. Personally, I grew out of bothering ant hills when I was about twelve. Nowadays, I pleasantly observe from high above. So why wouldn't aliens do the same? In this case, your second…

> I grew out of bothering ant hills when I was about twelve. Nowadays, I pleasantly observe from high above. So why wouldn't aliens do the same? Simple: the aliens that mess with us are delinquent eleven year olds joyriding their parents' saucer

I knew I wasn't the only one who watched Explorers in the 80s.

https://www.imdb.com/title/tt0089114

Re: UFOs spotted off Irish coast under investigation

#279

Post by starbeast » Wed, Nov 14, 2018, 1:54 AM UTC

evilturnip wrote: post #23

I'll also put my tinfoil hat on, since I've had a long fascination with anamolous phenomenon. I still think the jury's out on what exactly is going on, but one thing that's consistent worldwide is that balls of light are associated with UFOs, bigfoot, poltergeists, etc. My rational mind doesn't really believe in all of this, but if it did, I think I'd take Jacques Vallee's theory seriously. Jacques Vallee is an astro…

>My rational mind doesn't really believe in all of this, but if it did, I think I'd take Jacques Vallee's theory seriously.

I read through that and it immediately reminded me of Miller's flying saucer theory from Repo-Man - https://www.youtube.com/watch?v=vRJ5cCP0ZPE

Re: UFOs spotted off Irish coast under investigation

#280

Post by russdill » Wed, Nov 14, 2018, 3:12 AM UTC

reason-mr wrote: post #261

russdill wrote: post #251

Earlier quoted context omitted.

If you have a dyson sphere, it glows very brightly in lower wavelengths, such as IR. We don't see that in voids. Additionally, looking back into cosmic history, we can see the formation of voids in the very early universe and their expected expansion.

I find the assumption that any advanced civilization is going to emit external electromagnetic radiation and/or be warm quite curious. Most quantum computing work is at low temperatures, and work on photonics (for example : http://science.sciencemag.org/content/361/6397/57 )is coming along nicely. If we assume an extropian approach of uploading into a more advanced substrate, I find it more likely that they would be…

ok, fine, then they are blazing in the microwave region. The Dyson sphere will always output the same amount of energy as the original star, just at a lower frequency. Otherwise the temperature would increase continuously.