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 | 4
6712 posts

Uber Geek
+1 received by user: 3470


  Reply # 1976966 15-Mar-2018 09:41
Send private message

Dammit, we're not going to get his opinion on this bizarre new observation:

 

 

All disk galaxies rotate once every billion years

 

“It’s not Swiss watch precision, but regardless of whether a galaxy is very big or very small, if you could sit on the extreme edge of its disk as it spins, it would take you about a billion years to go all the way round.”

 

 

Yet another counter-intuitive coincidence to make some wonder if our existence is for the purpose of being observers of some kind of weird experiment.

 

 


17295 posts

Uber Geek
+1 received by user: 4947

Trusted
Lifetime subscriber

  Reply # 1976968 15-Mar-2018 09:44
Send private message

Fred99:

 

Dammit, we're not going to get his opinion on this bizarre new observation:

 

 

All disk galaxies rotate once every billion years

 

“It’s not Swiss watch precision, but regardless of whether a galaxy is very big or very small, if you could sit on the extreme edge of its disk as it spins, it would take you about a billion years to go all the way round.”

 

 

Yet another counter-intuitive coincidence to make some wonder if our existence is for the purpose of being observers of some kind of weird experiment.

 

 

 

 

Well, if you are the observers, you are very patient. Humans haven't been around a billion years and it's a long time to see what happens to us :) 

 

 


6712 posts

Uber Geek
+1 received by user: 3470


  Reply # 1976977 15-Mar-2018 10:04
Send private message

You don't need to observe a clock for an hour to determine the time it'll take the hour hand to rotate full circle.


17295 posts

Uber Geek
+1 received by user: 4947

Trusted
Lifetime subscriber

  Reply # 1976979 15-Mar-2018 10:07
Send private message

Fred99:

 

You don't need to observe a clock for an hour to determine the time it'll take the hour hand to rotate full circle.

 

 

Don't have to watch it, but still have to wait.

 

 


6712 posts

Uber Geek
+1 received by user: 3470


  Reply # 1976988 15-Mar-2018 10:23
Send private message

networkn:

 

Fred99:

 

You don't need to observe a clock for an hour to determine the time it'll take the hour hand to rotate full circle.

 

 

Don't have to watch it, but still have to wait.

 

 

What for?


4562 posts

Uber Geek
+1 received by user: 1831


  Reply # 1976993 15-Mar-2018 10:32
Send private message

Very sad. A remarkable and inspiring person.





Mike

589 posts

Ultimate Geek
+1 received by user: 103
Inactive user


  Reply # 1976996 15-Mar-2018 10:45
Send private message

http://www.hawking.org.uk/the-computer.html


12584 posts

Uber Geek
+1 received by user: 2238

Trusted

  Reply # 1977007 15-Mar-2018 11:11
One person supports this post
Send private message

Starscream122:

 

http://www.hawking.org.uk/the-computer.html

 

 

Thanks


Mad Scientist
18630 posts

Uber Geek
+1 received by user: 2368

Trusted
Lifetime subscriber

  Reply # 1977008 15-Mar-2018 11:11
Send private message

Fred99:

 

You don't need to observe a clock for an hour to determine the time it'll take the hour hand to rotate full circle.

 

 

Not necessarily so.

 

A lot of things can happen in the hour.

 

Battery might get weak.

 

Some dude might come and change the time.

 

Magnet might interfere if it were a digital type clock.

 

Someone might step on the clock.

 

Assuming nothing changes, then yes.


6712 posts

Uber Geek
+1 received by user: 3470


  Reply # 1977108 15-Mar-2018 12:45
Send private message

Batman:

 

Fred99:

 

You don't need to observe a clock for an hour to determine the time it'll take the hour hand to rotate full circle.

 

 

Not necessarily so.

 

A lot of things can happen in the hour.

 

Battery might get weak.

 

Some dude might come and change the time.

 

Magnet might interfere if it were a digital type clock.

 

Someone might step on the clock.

 

Assuming nothing changes, then yes.

 

 

You forgot the "hand of God" - unless you were disrespectfully referring to the omniscient and omnipresent white gentleman as "some dude".


Mad Scientist
18630 posts

Uber Geek
+1 received by user: 2368

Trusted
Lifetime subscriber

  Reply # 1977209 15-Mar-2018 14:40
Send private message

We like to think we know it all, but whether or not all galaxies spin a full circle in a billion years ... I'd like to think we don't know for absolute certainty.


BDFL - Memuneh
60846 posts

Uber Geek
+1 received by user: 11725

Administrator
Trusted
Geekzone
Lifetime subscriber

  Reply # 1977217 15-Mar-2018 15:18
Send private message

Cambridge University video tribute:

 

 

He always seemed to show good humour. Here is his poker game with Cmdr Data, Einstein and Newton (Star Trek TNG)

 

 

It's dusty here...





17295 posts

Uber Geek
+1 received by user: 4947

Trusted
Lifetime subscriber

  Reply # 1977222 15-Mar-2018 15:25
Send private message

Those allergies playing up again big fella? 

 

I found out by opening reddit whilst waiting for my food at a restaurant. Had to take a moment to compose myself. I still don't really understand my reaction, I wasn't especially attached to the guy perse, but still feel we lost something enormous.

 

 


6712 posts

Uber Geek
+1 received by user: 3470


  Reply # 1977227 15-Mar-2018 15:32
Send private message

Batman:

 

We like to think we know it all, but whether or not all galaxies spin a full circle in a billion years ... I'd like to think we don't know for absolute certainty.

 

 

They just observed that all HI selected disk galaxies in the low redshift universe (ie relatively close) were measured to have a relatively constant time for rotation of stars at the periphery of the galaxy around the centre, about a billion years.  I presume that they can measure this rotational speed by looking at red/blue shift on either side, then estimate diameter by overall red shift as a measure of distance. 

 

I guess if they found an exception, that might make it easier to uncover the "rule", as there may be other clues in that exception, but AFAIK they didn't.

 

If we thought we knew it all, they wouldn't have been looking.


17295 posts

Uber Geek
+1 received by user: 4947

Trusted
Lifetime subscriber

  Reply # 1977229 15-Mar-2018 15:35
Send private message

Maybe I am missing the point, but what do we gain from an understanding of this? The likelyhood of humans surviving the next 2000 years is remote to say the least, let alone any number multiples higher.

 

If those resources were spent on renewable energy etc, surely it would be of greater value?


1 | 2 | 3 | 4
View this topic in a long page with up to 500 replies per page Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Hawaiki Transpacific cable ready-for-service
Posted 20-Jul-2018 11:29


Microsoft Dynamics 365 Business Central launches
Posted 10-Jul-2018 10:40


Spark completes first milestone in voice platform upgrade
Posted 10-Jul-2018 09:36


Microsoft ices heated developers
Posted 6-Jul-2018 20:16


PB Technologies charged for its extended warranties and warned for bait advertising
Posted 3-Jul-2018 15:45


Almost 20,000 people claim credits from Spark
Posted 29-Jun-2018 10:40


Cove sells NZ's first insurance policy via chatbot
Posted 25-Jun-2018 10:04


N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34



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.

Alternatively, you can receive a daily email with Geekzone updates.