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<d48b8931-0aa2-4d57-943f-d108e64f6f9an@googlegroups.com> b254bc18
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<b8d0a243-96c5-4164-9d08-566ec61758e7n@googlegroups.com> 47f85ea3
@REPLYADDR palsing <pnalsing@gmail.com>
@REPLYTO 2:5075/128 palsing
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<03b3a75f-27a2-487e-a8ef-1a9c47bc712fn@googlegroups.com> <fev0hido1s5tr671djedilthpha8acg7h2@4ax.com>
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<1bc5bc4d-2dd7-4c3d-9f97-495d5293868dn@googlegroups.com> <rdr5hihvauikqi3aq1dqatdgeod1m5l8n5@4ax.com>
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@RFC-Message-ID:
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@TZUTC: -0700
@PID: G2/1.0
@TID: FIDOGATE-5.12-ge4e8b94
On Tuesday, September 26, 2023 at 11:34:01 AM UTC-7, W wrote:
> On Tuesday, September 26, 2023 at 12:42:50 PM UTC-4, palsing wrote:
> > On Tuesday, September 26, 2023 at 7:45:19 AM UTC-7, Chris L Peterson wrote:
> > > On Tue, 26 Sep 2023 07:15:29 -0700 (PDT), W <
wsne...@hotmail.com>
> > > wrote:
> > > >On Tuesday, September 26, 2023 at 9:28:32?AM UTC-4, Chris L
Peterson wrote:
> > > >> On Tue, 26 Sep 2023 05:54:07 -0700 (PDT), W <
wsne...@hotmail.com>
> > > >> wrote:
> > > >> >On Sunday, September 24, 2023 at 2:20:31?PM UTC-4, Chris
L Peterson wrote:
> > > >> >> On Fri, 22 Sep 2023 17:10:40 -0700 (PDT), RichA
<
rande...@gmail.com>
> > > >> >> wrote:
> > > >> >> >India has lots of plutonium. Canadian idiot
politicians saw to that. Too bad no RTGs...
> > > >> >> >
> > > >> >> >
https://www.bbc.com/news/world-asia-india-66893924
> > > >> >> No reason the panels should be a problem. And RTGs require the same
> > > >> >> batteries.
> > > >> >
> > > >> >The RTGs would keep the batteries and other vulnerable
parts warm enough.
> > > >> The sort of batteries used these days are not damaged by cold. They
> > > >> simply become inefficient at delivering power when cold. So in an
> > > >> environment where they will naturally warm again, and a mission plan
> > > >> that does not require major operations in the cold, there is no
> > > >> problem.
> > > >
> > > >Nope. The temps encountered during the lunar night can
wreck almost anything, including "the sort of batteries used these days."
> > > >
> > > >There will not be enough "juice" in the batteries to keep
other vulnerable parts warm enough.
> > > As usual you have no idea what you are talking about. Cold damages
> > > very little. There was almost certainly nothing in the craft that
> > > would sustain permanent damage from those temperatures.
> > >
> > > In any case, they had no option. Rich`s hard-on for RTGs was not an
> > > option, since launching them requires following a lot of international
> > > treaty laws (fortunately!) which would have dramatically increased the
> > > cost of the mission. And as the mission plan only required one
> > > daylight operation cycle, the mission goals were achieved.
> > Apparently, this mission was not designed to survive the lunar night...
> >
https://interestingengineering.com/innovation/isros-chandrayaan-3-confronts-cold
-lunar-odds-heres-why
> >
> > ... and they "chose not to equip these robotic pioneers with
the commonly used radioisotope heater units (RHUs)."
> The mission planners did not "choose not to use" radioistopes,
they could not AFFORD to.
You are clearly making this up. From the article I referenced...
"... ISRO has remained silent on why Chandrayaan-3 lacks these heating elements"
You might be correct but then again, you might be incorrect.
--- G2/1.0
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