General > General Technical Chat
The end of the line for the Arecibo radio telescope
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jmelson:

--- Quote from: jogri on December 02, 2020, 02:02:24 pm ---
I wouldn't be surprised if such occurences become the norm in a few years, quite a lot of the stuff that was build in the 60s and 70s is already starting to fail... Here in germany, nearly 15% of all highway bridges are classified as "dilapidated". And that is certainly not going to get better anytime soon.

--- End quote ---
It has actually been going on for quite some time.  I work in the basic nuclear science area.  When I got started, there were ion accelerators all over the place.  Now, a whole bunch of them have been shut down, or available only to commercial customers, etc.  So, the old cyclotron at Oak Ridge national lab was shut down, then the Van de Graff there was shut down (highest voltage Van de Graff in the world, 50 MV), the 88" cyclotron at Lawrence Berkeley Labs was made only available to cash customers, right now the superconducting cyclotrons at MSU are being shut down and scrapped.  A bunch of other facilities have also been shut down.  All due to a VASTLY shrinking science budget in the US.

Jon
0culus:

--- Quote from: BravoV on November 20, 2020, 03:38:22 pm ---Well, at least its now covered by -> FAST and bigger, comparison of Arecibo's size vs FAST.




--- End quote ---

The thing is Arecibo was also a radar....FAST to my knowledge is a receiver only.
BravoV:

--- Quote from: jmelson on December 03, 2020, 02:18:10 am ---All due to a VASTLY shrinking science budget in the US.

--- End quote ---

The Chinese FAST dish cost US$171 millions (excl.data processing center) (-> Reference), for US, say mark it up 3 times as more expensive labour, more advanced design and technology, and prolly corruption too  :P, say at a half billion US$, this figure still like a drop of water in the lake compared to military budget.
BravoV:
Can this FAST morpheable dish have advantage if used for radar ?





BravoV:

--- Quote from: 0culus on December 03, 2020, 03:08:58 am ---The thing is Arecibo was also a radar....FAST to my knowledge is a receiver only.

--- End quote ---

Just guessing, when in design stage, someone there or an entity (military maybe ?) should have thought of this ?  :-//
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