Go Back   IceInSpace > General Astronomy > General Chat
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 02-12-2020, 10:14 AM
astroron's Avatar
astroron (Ron)
Supernova Searcher

astroron is offline
 
Join Date: Mar 2005
Location: Cambroon Queensland Australia
Posts: 9,315
Arecibo collapses

A great loss.
https://www.bbc.com/news/world-us-canada-55147973
Cheers
Reply With Quote
  #2  
Old 02-12-2020, 12:17 PM
alpal's Avatar
alpal
Registered User

alpal is offline
 
Join Date: Jan 2012
Location: Melbourne
Posts: 3,612
That's so sad - it really is gone forever -
I thought there may have been a way to save it.
Reply With Quote
  #3  
Old 02-12-2020, 12:26 PM
glend (Glen)
Registered User

glend is offline
 
Join Date: Jun 2013
Location: Lake Macquarie
Posts: 7,054
They were unwilling to spend the money necessary to fix it, before it collapsed.
Reply With Quote
  #4  
Old 02-12-2020, 12:32 PM
alpal's Avatar
alpal
Registered User

alpal is offline
 
Join Date: Jan 2012
Location: Melbourne
Posts: 3,612
There is a video showing all that is left.


Reply With Quote
  #5  
Old 02-12-2020, 12:56 PM
Outcast's Avatar
Outcast (Carlton)
Always gonna be a NOOB...

Outcast is offline
 
Join Date: Oct 2008
Location: Cairns, Qld
Posts: 1,285
Quote:
Originally Posted by glend View Post
They were unwilling to spend the money necessary to fix it, before it collapsed.
I don't think money was the issue Glen, what I have read indicates that, their main concern was that the structure was so unsound that attempting repairs presented an unacceptable & potentially deadly risk to construction workers.
Reply With Quote
  #6  
Old 02-12-2020, 01:18 PM
julianh72 (Julian)
Registered User

julianh72 is offline
 
Join Date: Jan 2014
Location: Kelvin Grove
Posts: 1,300
Quote:
Originally Posted by alpal View Post
There is a video showing all that is left.


I don't think that's going to "buff out"!
Reply With Quote
  #7  
Old 02-12-2020, 01:25 PM
julianh72 (Julian)
Registered User

julianh72 is offline
 
Join Date: Jan 2014
Location: Kelvin Grove
Posts: 1,300
Quote:
Originally Posted by Outcast View Post
I don't think money was the issue Glen, what I have read indicates that, their main concern was that the structure was so unsound that attempting repairs presented an unacceptable & potentially deadly risk to construction workers.
That's correct - they had several teams of very highly regarded Structural Engineers look at options for recovery, but their conclusion was that the remaining ropes were already loaded to an unsafe condition, and imminent collapse was in fact expected.

There was no way to safely get people close enough to work on the ropes (repair or replace) - when a highly-tensioned rope lets go, an enormous amount of energy is suddenly released, and the free end of the rope can move at supersonic speeds. They were still trying to find a way to do a safe controlled demolition - such as using robots or drones to cut the ropes - but nature beat them to it.
Reply With Quote
  #8  
Old 02-12-2020, 01:30 PM
astroron's Avatar
astroron (Ron)
Supernova Searcher

astroron is offline
 
Join Date: Mar 2005
Location: Cambroon Queensland Australia
Posts: 9,315
This report says that cables were braking at one a day.
There was no way of saving it safely.
It had passed it's use by date.
https://www.sciencemag.org/news/2020...c9587-43849317
Cheers
Reply With Quote
  #9  
Old 02-12-2020, 08:53 PM
alpal's Avatar
alpal
Registered User

alpal is offline
 
Join Date: Jan 2012
Location: Melbourne
Posts: 3,612
Another longer video showing that a building was also ruined.


Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 09:07 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Testar
Advertisement
Bintel
Advertisement