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Maybe because FIRMS uses data from satellites in polar orbits, which only pass over the area once every few hours? With choosing near-Earth polar vs. farther geostationary orbits there's a tradeoff between space and time resolution.


No, just a student on winter break who got curious why CA Fire's map wasn't showing the up-to-date extent of the Eaton fire. Do they have this kind of heat data?


They integrate a number of sources. Satellite, cameras, weather, CalFire, etc. Check out their app, it’s free. They are a non-profit Startup, which is an interesting approach.


No, looks like they're doing a way better job! Thanks for sharing. I was only aware of the GOES sats. Seems like VIIRS is more intended to do this kind of monitoring.


I still like what you did on break. FWIW GEOS provides Fire Temperature: https://www.star.nesdis.noaa.gov/goes/sector_band.php?sat=G1...


It's accurate. Stellar winds are the primary driver of mass loss for stars near the end of their lives. Asymptotic red giants have extremely voluminous and sparse atmospheres very loosely bound by gravity; any excess radiation pressure would create an instability and blow away portions of the outer envelope. Eventually this exposes a dense, glowing carbon/oxygen/neon core surrounded by a fraction of the original atmosphere (exact composition varies), which we call a white dwarf.

Further reading: Ch. 13, Carroll & Ostlie, Introduction to Modern Astrophysics


I swear submitted this post last night but now it shows I did it two hours ago? Spooky


That's an artifact of HN's second-chance system. The system is described at https://news.ycombinator.com/item?id=26998308 and links back from there. About the timestamps, there are past explanations here: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que....

Sorry for the confusion—I know it's weird but the alternative turns out to be even more confusing and we've never figured out how to square that circle!


I don’t know how dang does it, but the internet would be so much better if every community had even half as good a moderator.


You are probably moving at high speed relative to the Hacker News server


Hacker News /ob/server

FTFY


According to the description of this NASA image [1], they flew a 7-million-cubic-feet super-pressure balloon in 2009. Approximating as a perfect sphere, that's around 120 feet in radius / 80 yards in diameter. And "When development ends, NASA will have a 22 million-cubic-foot balloon", which is around 170 feet in radius / 110 yards in diameter. These things also look squashed when inflated [2], so they're probably even wider horizontally. Basically, you can fit an entire football field inside along with some stands.

1. https://commons.wikimedia.org/wiki/File:NASA-NSF_super_press...

2. https://commons.wikimedia.org/wiki/File:Super_v_zero_pressur...


40 yds*


radius vs diameter


AI couldn't have started any of the artistic and literary movements, which don't just blend between traditional styles but reject some aspect to forge something new. You can't get AI to generate cubism from training on Victorian art.


Why not?

Sure, a style like cubism is unlikely to appear from current AI art generation, but ultimately there's a human still in the loop. The human picks the direction the generation goes in and you can definitely see "styles" or even "characters" appear in certain types of prompts.

If you hang around people that do this a lot you'll see that some of them end up generating hundreds, if not thousands, of images of what seems to be the same character in varying situations. That indicates to me that you could potentially find a type of prompt that would lead to an art movement.

Hell, AI art itself might constitute an art movement.


So do you believe that human brains are somehow magic and don't follow the laws of physics and can't be simulated by Turing machines?


They’re talking about AI now not some notional future where we can model a real nervous system.


You've set up a false dichotomy.

"Human brain is magic." <> "Human brain is not simulatable by Turing machines."

There are other possibilities. I'm sure you can think of a few.


I can't think of any. Can you help me?


I do. It’s not a very controversial belief except if you only train using Internet comments.


It's quite controversial since any magic element in the universe undermines fundamental assumptions.


Physics has plenty of holes. It’s a changing model of measurable quantities in our world. It doesn’t take a lot of brainpower to fit other systems either into the gaps in physics, or independent unmeasurable areas


Magic violates fundamental principles of our understanding of the world like causality or various conservation laws. You can't just squeeze that into the gaps.


Welp. It worked on the school-issued Chromebooks and my friend's Macbook Air but not on iPads or iPhones, so guess I have to test it on more Apple stuff :/


Newer studies have put doubt to olivine's effectiveness: https://www.technologyreview.com/2022/03/30/1048434/why-usin...


That was about putting olivine in seawater, not spreading it on soil.

My concern with all these approaches is the nickel content of olivine, which can be several tenths of a percent.


Yes, you would favor using the low-nickel supply on farmland.

I wonder if nickel in olivine would be harmful on beaches.


Can be pulled off with enough context https://i.imgur.com/pXA69Xw.png


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