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Old 2021-10-13, 14:22   #12
kriesel
 
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Quote:
Originally Posted by Dr Sardonicus View Post
This is new technology. There were bound to be unforeseen problems along the way. Of course the development costs were high.

Now that we've worked those things out, what we need to do is produce a fleet of space telescopes, in order to get the unit cost down.
Or do 20 such development projects, just skip treating cancer for a year. https://www.progressreport.cancer.go...conomic_burden
All those unemployed doctors, nurses, radiology technicians etc may not be very effective engineers, machinists, etc. though without a lot of retraining that would take more than a year.
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Old 2021-10-13, 14:38   #13
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Quote:
Originally Posted by kriesel View Post
Or do 20 such development projects, just skip treating cancer for a year. https://www.progressreport.cancer.go...conomic_burden
All those unemployed doctors, nurses, radiology technicians etc may not be very effective engineers, machinists, etc. though without a lot of retraining that would take more than a year.
I believe the technical term is "opportunity cost".
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Old 2021-10-13, 15:37   #14
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Originally Posted by xilman View Post
I believe the technical term is "opportunity cost".
Opportunity cost is a primarily economics term. https://en.wikipedia.org/wiki/Opportunity_cost An opportunity cost analysis informed by college placement office data is why I did not go for a PhD, although strongly encouraged by certain faculty, and employment interviewers seemed quite satisfied with that answer.

It's a multiyear project for an individual to become adequately trained in a technical field as distinct from medical care as optics, aerospace engineering or manufacturing.

Time lags in responding to choices motivated by shifting economic parameters contribute toward irreversibility. http://perrings.faculty.asu.edu/pdf_...RRE_(2009).pdf

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Old 2021-10-13, 19:56   #15
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Originally Posted by Dr Sardonicus View Post
Now that we've worked those things out, what we need to do is produce a fleet of space telescopes, in order to get the unit cost down.
There most assuredly will be, or perhaps are, reconnaissance satellites that share some of the technology of the JWST.
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Old 2021-10-13, 20:06   #16
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There most assuredly will be, or perhaps are, reconnaissance satellites that share some of the technology of the JWST.
Optical recon sats don't really need to. The seeing will become an issue once one goes beyond the KeyHole sats with mirrors the size of Hubble. How much resolution do you want? Just 2 mirrors the size of Hubble can be deployed in a simpler way than JWST and create and effective diameter 3x that of Hubble. Electronic eavesdropping on the other hand.... there are some with antennae reflectors about the size of JWST's sun shield. I wish that had picked up or saved the button for the cover mission that I saw at JPL for that.
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Old 2021-10-13, 20:29   #17
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Yes, Orion-class satellites are thought to have reflectors larger than JWST's sun shield. But it's not just the large mirrors. The steering system for JWST's secondary mirror seems closely guarded.
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