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General Discussion / Re: Tongan eruption and Scott Manley
« Last post by Peter B on Today at 01:58:03 AM »
Calling them Muppets is an insult to Muppets.

Calling them [insert term here] is an insult to [insert term here].
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General Discussion / Re: James Webb Space Telescope
« Last post by raven on January 24, 2022, 11:41:54 PM »
The mirrors, antenna and sun shade all have deployed successfully. I wouldn't say we're home free, but this is looking more and more hopeful all the time.
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General Discussion / Re: Tongan eruption and Scott Manley
« Last post by bknight on January 24, 2022, 05:45:02 PM »
Calling them Muppets is an insult to Muppets.

Snicker.  :)
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General Discussion / Re: James Webb Space Telescope
« Last post by bknight on January 24, 2022, 05:44:06 PM »
JWST is now in its L2 orbit, and getting ready to start work.

James Webb telescope parked in observing position
Quote
Thirty days after it was launched, the James Webb telescope has arrived at the position in space where it will observe the Universe.

The Lagrange Point 2, as it's known, is a million miles (1.5 million km) from Earth on its nightside.

Webb was finally nudged into an orbit around this location thanks to a short, five-minute thruster burn.

Controllers back on Earth will now spend the coming months tuning the telescope to get it ready for science.

Key tasks include switching on the observatory's four instruments, and also focusing its mirrors - in particular, its 6.5m-wide segmented primary reflector.

There's still a lot of adjustment and checking to do, but it won't be too long before we start to see some amazing images.
Looking better with each milestone passed.
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General Discussion / Re: James Webb Space Telescope
« Last post by molesworth on January 24, 2022, 04:51:29 PM »
JWST is now in its L2 orbit, and getting ready to start work.

James Webb telescope parked in observing position
Quote
Thirty days after it was launched, the James Webb telescope has arrived at the position in space where it will observe the Universe.

The Lagrange Point 2, as it's known, is a million miles (1.5 million km) from Earth on its nightside.

Webb was finally nudged into an orbit around this location thanks to a short, five-minute thruster burn.

Controllers back on Earth will now spend the coming months tuning the telescope to get it ready for science.

Key tasks include switching on the observatory's four instruments, and also focusing its mirrors - in particular, its 6.5m-wide segmented primary reflector.

There's still a lot of adjustment and checking to do, but it won't be too long before we start to see some amazing images.
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General Discussion / Re: Tongan eruption and Scott Manley
« Last post by gillianren on January 23, 2022, 01:09:58 PM »
Calling them Muppets is an insult to Muppets.
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General Discussion / Re: Tongan eruption and Scott Manley
« Last post by raven on January 23, 2022, 04:15:09 AM »
Perhaps the most amusing part of it is when other commenters confidently dismiss flat earthers as crazy left-wingers, only to be informed that all flat earthers who've express political opinions are actually Trump supporters...
Well, their scientific views are downright prehistoric, so why not their social and political views as well?
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General Discussion / Re: Tongan eruption and Scott Manley
« Last post by Peter B on January 22, 2022, 08:45:16 AM »
Nice photo matching work, OBM.

Those muppets, as you appropriately describe them, have indeed been silent about the shape of the shockwave. Instead, most of the conspiracism relating to the eruption has been claims that it's either a nuke or a meteorite. The idea that a volcano that's been erupting intermittently for a decade might erupt again apparently is crazy talk - they're convinced that the first H8 image of the eruption is instead showing something heading in for impact.

Yes, I've been slumming it on YT, trying to engage with flat earthers and the odd Apollo denier. There is some industrial-strength denialism and conspiracism at work there.

But the other thing I've noticed is the BS approach of the makers of the flat earth videos. As defined in an article from The Conversation (https://theconversation.com/bullshit-is-everywhere-heres-how-to-deal-with-it-at-work-135661) these people aren't interested in facts, or even in lying, they just say whatever they can to maintain the controversy, keep people coming back to be conned and sucking in more marks. I find this particularly repellant.

Then there's the steady stream of comments (not all of them trolls, I'm sure) from people who've obviously been watching the videos and been convinced by them. The combination of naivete and arrogance is depressing, so I'm also motivated to do my little bit to plant seeds of doubt.

Perhaps the most amusing part of it is when other commenters confidently dismiss flat earthers as crazy left-wingers, only to be informed that all flat earthers who've express political opinions are actually Trump supporters...
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General Discussion / Re: Tongan eruption and Scott Manley
« Last post by onebigmonkey on January 22, 2022, 04:14:54 AM »
It occurred to me that EPIC:DSCOVR might have a view of the eruption, and sure enough...





I also double checked that it wasn't some sort of pre-existing cloud by overlaying DSCOVR's image and stretching it to fit Himawari:



:)

The flat earth muppets have no explanation as to how the pressure wave was recorded by met stations world wide in a way totally consistent with a spherical Earth and impossible on a flat one.
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The Reality of Apollo / Re: Linus on the Saturn V IU
« Last post by jfb on January 17, 2022, 09:35:23 AM »
There’s one bit (I think its on the SED2 channel video) where Luke gets to abuse Linus a little:

Linus: Are those fiber optic cables or something?

Luke: Boy, those are wires.

Luke also describes their postflight troubleshooting technique of printing out an octal dump of the telemetry, cutting some holes in a cardboard template, and going frame by frame, writing down the values for whatever sensor they were interested in, converting that to the actual measurement (temperature, voltage, whatever), plotting those values on a graph (by hand), and after a couple of weeks of effort, realizing that wasn’t the problem after all.

Having scrubbed through hex dumps as a larval programmer, that bit spoke to me deeply.

What I love most about these videos (but especially Destin’s) is how they quietly refute the whole "we didn’t have the technology to go to the Moon".  While these videos specifically cover the Saturn V computers, the apply just as well to the Apollo flight computers.  The hardware was primitive by today’s standards, but it was sufficient to do the job.
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