mentions 3 three alternative interpretations for GRB 250702B:
1. Ultralong Collapsars: These stellar-engine models can explain long durations but struggle to account for the specific timing of this event. Specifically, they cannot easily produce a 12-hour gradual rise in X-rays followed by a multi-hour peak, as the jet would have to fight through a massive progenitor star while its power is still very low.
2. White Dwarf (WD) Tidal Disruptions: While an Intermediate Mass Black Hole (IMBH) disrupting a White Dwarf could theoretically provide the necessary gravity, the numbers do not add up for this specific burst. The timing between flares is too long for a WD scenario, and the total energy required would demand an unrealistically narrow jet. When physical constraints like detonation are factored in, this model is considered highly unlikely.
3. Micro-TDEs (Main Sequence star by a stellar-mass BH/NS): This is considered a competitive alternative that can explain the burst's sub-second variability and long duration. However, it faces two main issues: current afterglow data suggests the surrounding gas density matches an IMBH environment better than a micro-TDE environment, and the burst’s extreme energy would require very high jet efficiency or a very narrow beam.
Sorry, but can someone explain to me why Flash failed? Was it because Apple killed it, or other reasons? Because not open source? Too heavy? I never really got the story, or only got bits and pieces. I know a lot of people liked Flash.
I had my handyman build one of these in front of our house. Also, I make a hobby of biking around to circulate books between different little free libraries in my extended neighborhood. I've found some amazing books over the years, things that were very different from my typical prior experience of books. I like this aspect, that it can be eye opening. Each little free library has it's own style of books. Some are better at handling magazines. Some see a lot of book movement, some much less. These factors influence how I move books around from one to another.
Suggestions on building a little free library:
1) By far the number one priority: Waterproof. If it's not waterproof, in my opinion you're actually doing a disservice to the community, rather than a service. And have an angled roof for proper drainage.
2) Don't make it too deep. Definitely not more than 18 inches. Probably 15 inches is a good depth.
3) If you can, make two levels: One level for tall books, another level for short books.
4) Don't make it too tiny, because then it's hard to get books in and out of.
5) A good solid stand so it doesn't fall over.
6) A good latch that will resist wind. Magnetic is good. I also like to have a magnet plus a hook that can be used for backup. Also with time it's nice to have the second option in case the shape changes a little and the magnet doesn't work.
7) You might try making a mockup out of cardboard so you can see the physical size and get a sense of how many books will fit.
8) Not a building tip, but: Try to arrange the books to look nice. If you have few books you can face some of them to attract attention.
Magnus is just so tenacious. From a lost position he snatched a victory. Take a look at the five hour mark (plus or minus) for the crucial moments of the key game: https://www.youtube.com/watch?v=s6ey5Up4S7w
A read-it-later app. Pocket, you had one job. Just one job. And for a while that was my killer app on mobile. But, as we see, the enshitification of the web continues.
"What began as a read-it-later app evolved into something much bigger. After Mozilla acquired Pocket in 2017, we invested in building our content curation and recommendation capabilities so people everywhere can discover and access high quality web content. While Pocket is shutting down, we will continue to invest in this promise—through the New Tab experience, our email newsletter, and more."
Here's an idea: Compensate any on-call work received during off hours at 10X the normal hourly rate. E.g., if my salary is $150K per year, then my hourly pay rate is about $75 per hour, so compensate my on call work at a rate of $750 per hour. Thus if I get a call at 10pm, log in to my laptop and work for 30 minutes to resolve the issue to a satisfactory level, then I pocket $375. That puts a financial incentive on companies to structure their on call protocols so that only the most important calls are handled. And I can envision variations on this theme. Different sorts of on-call disasters could offer bids for how much they're worth to fix based on some automated rubrick, and anyone on the ENG team could pick these up on a first-come, first-serve basis. Or various combinations of the above for a guaranteed backup person. But the companies should offer enough incentive to make it worthwhile. And this is in the companies' own best interest. To maintain a workforce that can think clearly during the normal work, to have a good reputation in the industry, to get good reviews on Glassdoor, etc.
Here's a FEN of the famous position from the Spassky-Fischer world championship match where Fischer weirdly played Bxh2 on move 29 and Spassky went on to win the game:
So this letter ℘ is distinct from another unicode symbol (that I can't copy-paste here?), which we often use for "power set" in math; it's given by U+1D4AB.
Just do a search for "The Lock Picking Lawyer," you'll have loads of fun seeing what he can do, sometimes with the most minimal of tools (like a thin strip of metal cut from a soda can).
Hm. Does Apple dare produce something that is actually gritty, ala Bladerunner, a world in which technology is not seen by the author as being sexy the way Apple likes, rather the backdrop to a story that still reflects the human condition in all the venality of our current day and age?
https://watermark02.silverchair.com/stag328.pdf?token=AQECAH...
mentions 3 three alternative interpretations for GRB 250702B:
1. Ultralong Collapsars: These stellar-engine models can explain long durations but struggle to account for the specific timing of this event. Specifically, they cannot easily produce a 12-hour gradual rise in X-rays followed by a multi-hour peak, as the jet would have to fight through a massive progenitor star while its power is still very low.
2. White Dwarf (WD) Tidal Disruptions: While an Intermediate Mass Black Hole (IMBH) disrupting a White Dwarf could theoretically provide the necessary gravity, the numbers do not add up for this specific burst. The timing between flares is too long for a WD scenario, and the total energy required would demand an unrealistically narrow jet. When physical constraints like detonation are factored in, this model is considered highly unlikely.
3. Micro-TDEs (Main Sequence star by a stellar-mass BH/NS): This is considered a competitive alternative that can explain the burst's sub-second variability and long duration. However, it faces two main issues: current afterglow data suggests the surrounding gas density matches an IMBH environment better than a micro-TDE environment, and the burst’s extreme energy would require very high jet efficiency or a very narrow beam.