Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 | 3 
Dratsab
3810 posts

Uber Geek

Trusted
Lifetime subscriber

  #2214886 11-Apr-2019 10:36
Send private message

DarthKermit: The actual image they've come up with has now been made public. Kinda looks like an orange out of focus doughnut. 

 


Affiliate link
 
 
 

Affiliate link: MyHeritage DNA test kit helps you discover your ethnicity results, DNA genetic groups, family relatives.
Fred99
13684 posts

Uber Geek


  #2214887 11-Apr-2019 10:36
Send private message

freitasm:

 

tdgeek:

 

Thats a rubbish resolution. Can you re post as 4k and HDR? :-)

 

 

Why bother? If your screen is not OLED you won't see a true black.

 

 

Not even totally blind people can see true black, they only see nothing at all.


DarthKermit

5346 posts

Uber Geek

Trusted

  #2214895 11-Apr-2019 10:52
Send private message

The only thing that can devour more mass than a black hole: homer Simpson.




KrazyKid
1146 posts

Uber Geek


  #2214898 11-Apr-2019 11:01
Send private message

XKCD link

 

Makes it seem kind of big :)


BlinkyBill
1443 posts

Uber Geek
Inactive user


  #2214899 11-Apr-2019 11:03
Send private message

DarthKermit:

2.7 billion miles away so 27 million hours!


It’ll still take the Mrs only 3/4 of an hour before she has to go to the toilet.

nunz
1421 posts

Uber Geek
Inactive user


  #2215227 11-Apr-2019 19:57
Send private message

tdgeek:

 

DarthKermit:

 

tdgeek:

 

Thats a rubbish resolution. Can you re post as 4k and HDR? :-)

 

 

Watch out I don't repost it so large it'll take you an eternity to scroll from one side to the other! Bwahahaha!

 

 

:-) Ill never tire of Universe stuff. Bit O Trivia. Say you started driving to Neptune (if you could). 100mph, 24/7 how long would it take?

 

 

27 -28 million hours  depending on if itis at its closest or longest distance but this is a trick question.

 

 

 

AS a neptunian year is 165 earth years it could be claimed it is 27 000 000 / (165 * 24)hours but that too is faulty.

 

both Earth and Neptune orbit the sun. If we go to Neptune in one direction we would in effect end up chasing it from behind and it would travel away from us faster than 100mph and so  we would never catch up - but it would eventually lap us.

 

However we could also stay still and it would catch us up or we could travel towards it.

 

 

 

But travelling towards is tricky too as to approach it at 100mph, we would in effect have to run away from it at Neptunes orbital speed - 100mph and let it catch us up at 100mph.

 

 

 

So the reality is  there is no right answer but something in the region of 27 million hours is close enough for a ball park figure.


nunz
1421 posts

Uber Geek
Inactive user


  #2215232 11-Apr-2019 20:07
Send private message

SaltyNZ:
DarthKermit:

 

The actual image they've come up with has now been made public. Kinda looks like an orange out of focus doughnut.

 

Yes, it was pretty much always going to: but that's important in and of itself. It DOES look exactly like it was expected to look. So once again ... we fail* to find the crack in Relativity that might lead to a quantum gravity theory. *Of course, the image has only just been released. There will be years of research poring over it to see if there is a crack to be exposed.

 

Reminds me of a quote from Episode 1 of Third Rock From the Sun where Dick has a throw away line about Earths misplaced confdence in Gravity.

 

As we can only explain gravity in terms of the effect it has on objects, but not how it affects objects (the mechanism), then us explaining relativity is like a baby trying to explain why there are more irrational numbers than rational ones. We are rying to run before we can walk.

 

 

 

Also it looks like we expect it to: There is so much in astro physics and astronomy that breaks our expectations that 'it looks like we expect it to' is more of a piece of luck than precise science.

 

Recently predictions of tyes of black holes, the effects of black holes types of super nova and other similar phenomina have been broken as the universe displays things well out of kilter with expectations.

 

 

 

 

 

 




DjShadow
3852 posts

Uber Geek

ID Verified
Trusted

  #2215251 11-Apr-2019 20:43
Send private message

I came across this perspective of the photo which really brings it home size wise

 


nzkc
1066 posts

Uber Geek


  #2215257 11-Apr-2019 20:48
Send private message

Woah... this video really puts a lot of it into perspective.  I have a whole new appreciation for this image!

 


DarthKermit

5346 posts

Uber Geek

Trusted

  #2215267 11-Apr-2019 21:00
Send private message

This black hole is about 55 million light years away from us. Another really freaky and amazing space oddity is the Boötes Void. An area almost 330 million light years in diameter that contains very few galaxies.


Batman
Mad Scientist
28014 posts

Uber Geek

Trusted
Lifetime subscriber

  #2215397 12-Apr-2019 01:02
Send private message

i re-played the TED video I watched last year.

 

am I right to think that they had already decided on the image they wanted to render back in 2017

 





Involuntary autocorrect in operation on mobile device. Apologies in advance.


nunz
1421 posts

Uber Geek
Inactive user


  #2215491 12-Apr-2019 08:45
Send private message

Batman:

i re-played the TED video I watched last year.


am I right to think that they had already decided on the image they wanted to render back in 2017




She used a faulty analogy...which if is the methodolgy makes whatever they render artistic creativity not factual based.

"A forensic scientist can use limited data to reconstruct a face using what they know about faces. The telescope algorithm works similarly."

The fault here is we know tons about faces from facts, actual measurements and experience.
We know nothing about black holes from facts, actual measurements and experience and so reconstructing an image based on an algorithm to fill in the gaps has to be an exercise in hope and fantasy....if her analogy is used.


tdgeek
26501 posts

Uber Geek

Trusted
Lifetime subscriber

  #2215494 12-Apr-2019 08:52
Send private message

DjShadow:

 

I came across this perspective of the photo which really brings it home size wise

 

 

 

Ignoring dark matter, there is a miniscule amount of matter in an area of that size. Given that a black Hole can be EXTREMELY dense, its hard to know how much matter is in it now, and if there is that much in it.


Fred99
13684 posts

Uber Geek


nunz
1421 posts

Uber Geek
Inactive user


  #2221470 20-Apr-2019 14:19
Send private message

Fred99:

 

Black holes don’t suck, but sometimes the internet does

 

 

 

 

 

 

Gravity is a myth. The Earth sucks.?

 

 

1 | 2 | 3 
View this topic in a long page with up to 500 replies per page Create new topic





News and reviews »

Samsung Introducing Galaxy Z Flip4 and Galaxy Z Fold4
Posted 11-Aug-2022 01:00


Samsung Unveils Health Innovations with Galaxy Watch5 and Galaxy Watch5 Pro
Posted 11-Aug-2022 01:00


Google Bringing First Cloud Region to Aotearoa New Zealand
Posted 10-Aug-2022 08:51


ANZ To Move to FIS Modern Banking Platform
Posted 10-Aug-2022 08:28


GoPro Hero10 Black Review
Posted 8-Aug-2022 17:41


Amazon to Acquire iRobot
Posted 6-Aug-2022 11:41


Samsung x LIFE Picture Collection Brings Iconic Moments in History to The Frame
Posted 4-Aug-2022 17:04


Norton Consumer Cyber Safety Pulse Report: Phishing for New Bait on Social Media
Posted 4-Aug-2022 16:50


Microsoft Announces New Solutions for Threat Intelligence and Attack Surface Management
Posted 3-Aug-2022 21:54


Seagate Addresses Hyperscale Workloads with Enterprise-Class Nytro SSDs
Posted 3-Aug-2022 21:50


Visa Launching Eco-friendly Payment Solutions in New Zealand
Posted 3-Aug-2022 21:48


NCR Delivers Services to Run Bank of New Zealand ATM Network
Posted 30-Jul-2022 11:06


New HP Portfolio Supports New Era of Hybrid Work
Posted 28-Jul-2022 17:14


Harman Kardon Launches Citation MultiBeam 1100 Soundbar
Posted 28-Jul-2022 17:10


Nanogirl Labs Launches Creator Project
Posted 28-Jul-2022 17:05









Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.







Backblaze unlimited backup