@BobReflected

42 Followers
45 Following
400 Posts
Emeritus Professor of Materials Physics.
Public understanding of science. Astrophotography (more aspiration than success 😉); Creative Writing; occasional blogger: https://bobreflected.blogspot.com.
Husband, father, grandfather, believer.
(Migrated from home.social when it closed.)
Blogsitehttps://bobreflected.blogspot.com/

These results are particularly important for people who model artificial night sky brightness (skyglow), because up until now, most skyglow models assume that all of the light comes from streetlight-style lights.

This shows that there are a great number of light sources that shine sideways (signs, and windows), that are right now being largely ignored.

This is also important for efforts to reduce #LightPollution, because it means that while streetlights are important, fixing them is not going to come close to fixing the entire problem.

Illuminated advertisements and lights mounted on buildings are also important - and the lights from residential houses probably matter a lot more than people generally think!

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«The Wikimedia Foundation, the nonprofit organization which hosts and develops Wikipedia, has paused an experiment that showed users AI-generated summaries at the top of articles after an overwhelmingly negative reaction from the Wikipedia editors community.»

It's nice to see places where community can help course correct!

https://www.404media.co/wikipedia-pauses-ai-generated-summaries-after-editor-backlash/

Wikipedia Pauses AI-Generated Summaries After Editor Backlash

“This would do immediate and irreversible harm to our readers and to our reputation as a decently trustworthy and serious source,” one Wikipedia editor said.

404 Media

Did you know YOU will be able to work on NSF–DOE Rubin Observatory data in your free time as a volunteer scientist? đŸ«”

We've partnered with the Zooniverse, a platform where researchers build projects for volunteer scientists. Find out more at https://rubinobservatory.org/explore/citizen-science

đŸ“·: RubinObs/NOIRLab/SLAC/DOE/NSF/AURA/B. Quint

What's been lost...
Entomologists from Krefeld, Germany, collected flying insects for two weeks in August 1994 (left) and—at the same site, with an identical trap— in August 2016 (right). Similar data from 63 German protected areas overall gave a shocking result: a 76 percent drop in insect biomass between 1989 and 2016.
It has worsened significantly in the past 9 years.
Photographed at Entomological Society of Krefeld

"AI companies claim their tools couldn't exist without training on copyrighted material. It turns out, they could — it's just really hard. To prove it, AI researchers trained a new model that's less powerful but much more ethical. That's because the LLM's dataset uses only public domain and openly licensed material."

tl;dr: If you use public domain data (i.e. you don't steal from authors and creators) you can train a LLM just as good as what was cutting edge a couple of years ago. What makes it difficult is curating the data, but once the data has been curated once, in principle everyone can use it without having to go through the painful part.
So the whole "we have to violate copyright and steal intellectual property" is (as everybody already knew) total BS.

https://www.engadget.com/ai/it-turns-out-you-can-train-ai-models-without-copyrighted-material-174016619.html?src=rss

It turns out you can train AI models without copyrighted material

It's just a pain in the ass.

Engadget

Nature presents us with 80 "octaves" of light, of which humans can see exactly 1.

Bringing the other 79 octaves into view has taken two centuries of effort, but it has transformed our ability to sense our place in the cosmic order.

My new essay in Aeon magazine:

https://aeon.co/essays/william-herschels-sensors-let-us-see-the-invisible-universe #space #science #nature #tech

An Open Letter to Robert F. Kennedy Jr., Who Thinks My Daughter Is a Tragedy

Dear Mr. RFK Jr., (The “dear” is tradition. Don’t mistake it for affection.) You said autistic children are a burden. That they ruin families. That...

McSweeney's Internet Tendency

Updating my satellite numbers for the talk I'm giving for the Nanaimo amateur astronomer club tonight.

There are now 7,540 Starlinks in orbit (240 more than last time I gave this talk 3 weeks ago). There are 11,577 total satellites (though I know this is missing a bunch because Space Force is getting slower and slower at cataloguing...)

Starlink is ~2/3 of all satellites.

SpaceX effectively controls orbit (as they have for quite a while now)

I honestly don’t see why air filters in every single classroom that doesn’t have effective air filtration in the architecture isn’t a no-brainer at this point.

Air filters in classrooms redu...
Air filters in classrooms reduce sick days by more than 10 per cent

Putting air filters in classrooms seems to boost student attendance, which may be due to them reducing levels of air pollution, pollen, pathogens or all three

New Scientist

I am under a DDoS attack. Not my server, not my service. Me.

And like everything these days, it has to do with #AI.

This is going to be a thread because I'm annoyed and have much to say. It should be called something like "How I wasted a good part of the last 7 years having to react to a dubious technology instead of doing my job". Or perhaps "How a science disappeared". You can decide. /0