Apr 11
21
In 2003, the Hubble Space Telescope took the image of a millenium, an image that shows our place in the universe. Anyone who understands what this image represents, is forever changed by it. How Can the universe be 78 billion LY across? I explain that in this article: www.deepastronomy.com There is also a link to a science paper on the topic, that paper actually states 96 billion LY. arxiv.org
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Go to google and search galactic center mosaic and view in full screen. Truly beautiful. The amount of stars in unbelievable and its only a small fraction of our galaxy!
@lee8264
I’m aware of a number of health concerns of long term zero-g, muscular atrophy being one and I think a reduction in bone density being another. But, it has often been suggested in sci fi to generate a degree of artificial gravity through rotation. The Discovery had a carousel running around the inner circumference of the spherical habitation module (at least in the novel) and the Alexei Leonov of course had the rotating hull section (which inspired the EA destroyers in Babylon 5).
@lee8264
The Areceibo message as I understand it wasn’t a serious attempt to establish contact, because it won’t reach it’s target star cluster for 25,000 years, so it might seem more practical for them to have sent it somewhere closer, but I was only 6 months old at the time so they didn’t consult me. SETI (listening rather than transmitting) was always going to have severe limitations though in terms of where you point your ‘ear’, at what frequency and how long you wait before moving on etc.
What is name of the song at 2:00??? anybody?
@BeatleEDs
I was just watching a phone in debate between the entertainingly named Matt Slick and Matt Dillahunty here on youtube concerning conceptual logic and logical absolutes. I don’t know if you’ve seen it, but it made me wonder what you would make of it. Come back to me, I’d be interested to hear your take on it although I won’t guarantee that it’s always easy to follow. It would be lovely if you’d have a go at answering that ‘GOD’ question that I’ve posed a couple of times now too.
@BigEnos001 – I’ll give it a listen but I find those guys hard to take. To many one liners. But i will check it out, thanks. GOD? GOD is a concept by which we measure our pain. I’ll say it again.
i hope im alive when we get in contact with other life.
@BigEnos001 – I have no more time tonight (i’m on the second video), but Matt Dillahunty has a very weak argument. And yes, I have seen this before. I’ll get back to you.
i personally and deeply hate the smacking voice of the speaker – can’t trust such a sycophant
not to forget: i very much hate this bolivian music, just awful.
@nullachtfuffzen
WHAT! This is Pink Floyd. C’mon bro!
3:25, we orbit a star, a star in a galaxy, “One of five hundred thousand million? is that even a number? By the way, this just blew my fuckin mind on 4/20 lol
I feel so incredibly small now. Plus I would like to go into space.
Bleh.
I think there is a problem with the 78 billion light years accross idea. 1. the photo could only be that far away from earth orbit of the telescope 2. Who proved we are the center of the universe? 3. If the universe is only about 15 billion years old how can anything see something more than 15 billion light years away?. If it is more than 30 billion light years accross from wherever the center is? then the estimate of the big bang is wrong or Einstine was wrong about speed of light limitations.
@daveusaz1218 1) What?, 2) The point of this image is hat we aren’t, 3) Expansion: think about it, 4) According to relativity, anithing WITHIN the universe can’t exceed lightspeed, but the universe, itself, can.
@daveusaz1218
That figure is an estimate and some scientists estimate that the figure is larger, but that aside and with all due respect, your problem is not with the figure itself, but with your understanding of what it represents. It represents ‘the observable universe’, i.e. as far as we can see in all directions from Earth, rather than representing the size of the ‘entire universe’. Special relativity imposes a speed limit upon objects within the universe, but not upon universal expansion.
@BeatleEDs
“GOD is a concept by which we measure our pain. I’ll say it again.”
Okay, but saying it just that once was sufficient. Interesting angle and all that, but if I need my pain measuring I’ll personally plump for the concept of visiting a physician or a psychiatrist. They have pain scales for that sort of thing.
So, does this GOD have any other properties and attributes you can share?
@BeatleEDs
I wonder if this will post correctly.
@BeatleEDs
“GOD is a concept by which we measure our pain. I’ll say it again.”
Okay, but saying it just that once was sufficient. Interesting angle and all that, but if I need my pain measuring I’ll personally plump for the concept of visiting a physician or a psychiatrist. They have pain scales for that sort of thing.
So, does this GOD have any other properties and attributes you can share?
@BeatleEDs
I don’t know if you received my reply, youtube is being an infuriating twat and only showing it in the ‘see all’ view. If not, I give up, there’s more important things to be irritated by.
@BeatleEDs
“GOD is a concept by which we measure our pain. I’ll say it again.”
Okay thanks, saying it just that once was sufficient. Interesting angle and all that, but if I need my pain measuring I’ll personally plump for the concept of visiting a physician or a psychiatrist. They have pain scales for that sort of thing.
So soes this GOD have any other properties or attributes that you can share?
@BigEnos001 Your funny, but seriously, without trying to blow smoke up my arse, try to respond again.
gr8 video and a fantastic channel overall……. well done, thanks
@daveusaz1218
It was a serious reply and if it seemed I was blowing things up your bum, that wasn’t my intention. But I can try to rephrase it if you like. The author perhaps doesn’t make this clear, but 78 billion light years across (some cosmologists estimate 93) doesn’t relate to the size of the ‘entire’ universe (whatever that may be), but to the size of the observable universe as seen from Earth, i.e. the furthest distance from which light has had time to travel to Earth up until now…
@daveusaz1218
The answer to how this figure can be larger than twice the age of the universe (13.7 billion years) given the speed of light limitation in special relativity, is that while special relativity applies to the motion of objects within the universe, it does not apply to the rate of expansion of the universe itself. There is also the (somewhat controversial) theory of Inflation that suggests an early period where expansion was at a much greater rate than it has been ever since.