Results 1 to 3 of 3

Thread: Broken Cable Damages Arecibo

  1. #1
    Join Date
    Sep 2003
    The beautiful north coast (Ohio)

    Broken Cable Damages Arecibo

    One of the auxiliary cables that helps support a metal platform in place above the Arecibo Observatory in Puerto Rico, broke on Monday (Aug. 10) causing a 100-foot-long gash on the telescope’s reflector dish. Operations at the UCF-managed observatory are stopped until repairs can be made.

    The break occurred about 2:45 a.m. When the three-inch cable fell it also damaged about 6-8 panels in the Gregorian Dome and twisted the platform used to access the dome. It is not yet clear what caused the cable to break.

    “We have a team of experts assessing the situation,” says Francisco Cordova, the director of the observatory. “Our focus is assuring the safety of our staff, protecting the facilities and equipment, and restoring the facility to full operations as soon as possible, so it can continue to assist scientists around the world.”
    The photo with the article is pretty shocking.
    At night the stars put on a show for free (Carole King)

    All moderation in purple - The rules

  2. #2
    Join Date
    May 2007
    It takes quite a lot to break a cable that size, but I wouldn't be too surprised if it was a combination of fatigue damage due to wind (vortex shedding) and the vibration from the earthquakes combined with corrosion. One would have to see where the cable broke and get a microscopic examination of the area of rupture.
    Information about American English usage here. Floating point issues? Please read this before posting.

    How do things fly? This explains it all.

    Actually they can't: "Heavier-than-air flying machines are impossible." - Lord Kelvin, president, Royal Society, 1895.

  3. #3
    Join Date
    Aug 2005
    NEOTP Atlanta, GA
    Scott Manley has a video about the break and it looks like (maybe) the failure was at the point where the cable connects to the base way off to one side of the telescope itself.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts