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Arecibo telescope, on the brink of collapse, will be dismantled

sciencemag.org

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Re: Arecibo telescope, on the brink of collapse, will be dismantled

#51

Earlier quoted context omitted.

Whose money are you volunteering to be spent on that?

I'm sure you could trade a handful of Patriot missiles and one or two F-35's to fund it several times over.

Quick and probably very inaccurate calculation

Arecibo cost $9.3 million in 1963. This is equal to $79,000,000 now (https://www.in2013dollars.com/us/inflation/1963?amount=93000...).

An F-35 costs about $100 million.

Based on that, I'd be happy to give up a single F-35 to rebuild Arecibo.

Re: Arecibo telescope, on the brink of collapse, will be dismantled

#52

I cannot believe they are shutting it down over a broken cable.

It's actually two broken cables. The second cable, before it failed, had actually been looked at, and it had been thought that it wasn't at risk of failure. So its failure meant that the structure was in more dire straits than previously thought.

When highly-stressed cables under tension fail, the resulting damage can be extremely violent. The decision is to safely dismantle the instrument platform rather than risk yet another cable failing and causing less localized damage.

Re: Arecibo telescope, on the brink of collapse, will be dismantled

#56
post #17

Is this a symbol of the degradation of human intellectual capability in the 21st century?

Our intellectual capability is not degraded; rather, it's funneled into adtech, porn, social media click optimization, and entertainment. Critical distinction.

Ah, yes, all those smart people making a Brave New World, while that world literally burns is totally not the same as degrading our intellectual capacity.

Re: Arecibo telescope, on the brink of collapse, will be dismantled

#58
Sad day. I worked in radio astronomy and stayed on site for a week a few years back. Amazing telescope, the scale of it has to be seen to be believed. They have had serious funding issues for some time now, so now that it needs repair, I figured they might retire it. Unfortunate for all the staff that work there, it employed quite a few people. RIP Arecibo.

Re: Arecibo telescope, on the brink of collapse, will be dismantled

#59
I loved seeing this thing when I visited PR, before the hurricane and all the rest. This makes me very sad :_(.

I wonder how they could have built it to be longer-lived/more maintainable. Did they not put enough thought into cable replacement when putting a bunch of add’l load onto it? Perhaps working without enough margin?

Also, it might not be intensely obvious from pictures, but this thing is in the middle of rainforest. Very humid. So it’s not all surprising it would degrade quickly.

Anyways, I wonder what they’ll do with that whole space. There’s a whole visitor center and school kids coming and going every day (well, maybe not this year).

Re: Arecibo telescope, on the brink of collapse, will be dismantled

#60

This is the kind of thing I always hope that one of the billionaire nerds will help with. Seems right up Elon Musk's alley.

This is multigenerational national infrastructure. Imagine a volatile nerd like Musk funding Goldstone or CERN. He'll get into a pissing match with someone who knows what he is talking about damn quick (remember the Thai U-boat story) and then refuse to pay further.
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