RepairPal is just a rent seeking middleman like Angi's list. I don't see what that partnership will provide, certainly not shops that are trained to repair the truck.
Cooling isn't anymore difficult than power generation. For example, on the ISS solar panels generate up to 75 W/m², while the EATCS radiators can dissipate about 150 W/m².
Solar panels have improved more than cooling technology since ISS was deployed, but the two are still on the same order of magnitude.
So just 13.3 million sq. meters of solar panels, and 6.67 million sq. meters of cooling panels for 1 GW.
Or a 3.651 km squared and 2.581 km squared butterfly sattelite.
I don't think your cooling area measures account for the complications introduced by scale.
Heat dissipation isn't going to efficiently work its way across surfaces at that scale passively. Dissipation will scale very sub-linearly, so we need much more area, and there will need to be active fluid exchangers operating at speed spanning kilometers of real estate, to get dissipation/area anywhere back near linear/area again.
Liquid cooling and pumps, unlike solar, are meaningfully talked about in terms of volume. The cascade of volume, mass, complexity and increased power up-scaling flows back to infernal launch volume logistics. Many more ships and launches.
Cooling is going to be orders of magnitude more trouble than power.
How are these ideas getting any respect?
I could see this at lunar poles. Solar panels in permanent sunlight, with compute in direct surface contact or cover, in permanent deep cold shadow. Cooling becomes an afterthought. Passive liquid filled cooling mats, with surface magnifying fins, embedded in icy regolith, angled for passive heat-gradient fluid cycling. Or drill two adjacent holes, for a simple deep cooling loop. Very little support structure. No orbital mechanics or right-of-way maneuvers to negotiate. Scales up with local proximity. A single expansion/upgrade/repair trip can service an entire growing operation at one time, in a comfortable stable g-field.
Solar panels can in principle be made very thin, since there are semiconductors (like CdTe) where the absorption length of a photon is < 1 micron. Shielding against solar wind particles doesn't need much thickness (also < 1 micron).
So maybe if we had such PV, we could make huge gossamer-thin arrays that don't have much mass, then use the power from these arrays to pump waste heat up to higher temperature so the radiators could be smaller.
The enabling technology here would be those very low mass PV arrays. These would also be very useful for solar-electric spacecraft, driving ion or plasma engines.
> active fluid exchangers operating at speed spanning kilometers of real estate, to get dissipation/area anywhere back near linear/area again
Could the compute be distributed instead? Instead of gathering all the power into a central location to power the GPUs there, stick the GPUs on the back of the solar panels as modules? That way even if you need active fluid exchanger it doesn’t have to span kilometers just meters.
I guess that would increase the cost of networking between the modules. Not sure if that would be prohibitive or not.
Lets not forget that you have to launch that liquid up as well. Liquids are heavy, compared to their volume. Not to mention your entire 'datacenter' goes poof if one of these loops gets frozen, explodes from catching some sunlight, or whatever. This is pretty normal stuff, but not at this scale that would be required.
This focuses on students seeking diagnoses. But I would expect most of them have already been diagnosed long before college. Parents with high expectations of their children are more likely to seek diagnoses. If you've spent your childhood being told you are ADHD and on Ritalin, then it is natural you would self-identify as such in college.
I think there is a typo in the paper, that was carried over to the article. These two sentences appear to contradict one another as written:
> Interestingly, we observe significantly improved student test scores in the second year of the ban (about 2-3 percentiles higher than the year before the ban) when suspensions revert to pre-ban levels.
> Overall, we show that student test scores improved by 0.6 percentiles, with the ban increasing spring test scores 1.1 percentiles in the second year relative to the spring test right before the ban took effect.
Instead, I think the 1.1 percentile gain should be about the first year, and a 2-3 percentile gain by the second year. That is consistent with the graph.
But yes, a fairly small gain. I agree that much of the gain could be recovering from losses during the pandemic. Also the FAST is a new test that started in the 2022-2023 school year, so some of this could also be due to students and teachers adjusting to the new test and improving over time.
Windows 11 is much slower for me than Windows 7 or 10. A noticeable sub-second delay to bring up the start menu and respond to typing, about 3 seconds for file explorer to load, 5-20 seconds to start a screenshot. I wouldn't be surprised if antivirus is to partially to blame (only use Windows at work where it is required), but it is the same antivirus we used on Windows 10 and it wasn't this bad.
“A noticeable sub-second delay” lol. I guess you never ran Windows 98 on a pentium 2 like I did. If I had a dime for every sub-second delay I experienced on that machine…
Settings > Accessibility > Animation Effects > Off
5-10 seconds to start a screenshot, yeah man now you’re just lying. You sure you didn’t leave the delay timer on?
Are we going to gloss over the fact that the screenshot interface in old windows versions basically didn’t exist? There was no keyboard shortcut to open snipping tool by default in Windows 7. You had to know to use your print screen key correctly and to paste the image into Paint, and there was no visual feedback. Of course that performed fast because there was no UI!
> I guess you never ran Windows 98 on a pentium 2 like I did.
If you have to compare to a 20+ year old processor to look good, your system has problems. But since we are comparing old computers, Finder opens quicker on a 30 year old Macintosh 512k than Explorer opens in Windows 11.
> 5-10 seconds to start a screenshot, yeah man now you’re just lying.
Nope. I actually just updated that number up to 20 seconds after testing, because I thought my memory was exaggerating. This started in Windows 10 when they introduced "Snip & Sketch" to replace the old Snipping tool, but it was easier to go back to the old one in Windows 10.
Edit: Oh, and I just remembered another detail. Our library folders are mapped to network shares at work. Again, this has been the case for 15+ years now, and performance has just recently cratered. It would not surprise me if most Windows developers today assume everything is on SSD, and don't think about slapping low-importance file I/O in critical sections.
After this discussion I looked it up and the original sources that made a claim that the Windows 11 start menu is written in react aren’t even confirmed accurate, and allegedly the components involving react are using react native for windows and are therefore compiled to native code - no web views are involved: https://news.ycombinator.com/item?id=44124688
So even this base assumption that a slow heavy bloated experience is on offer is just hearsay. The only section that uses React is the allegedly recommended section, the one that can be disabled entirely with a single settings toggle.
Anyway, again, the 5-10 second screenshot thing, I’ve been testing it live and could never get it to be slower than 2 seconds between invoking the shortcut key to file on the disk. Keeping in mind that this includes me physically reacting as quickly as possible to click after the shortcut keys to initiate the capture. It’s about one second between clicking capture and observing the file appear in file explorer. My CPU is 5 years old, my RAM is DDR4, and I use an off brand nvme SSD, for your reference.
I will also add to this that the main competitor to Windows, macOS, adds an intentional delay to their screen capture where the screenshots aren’t added to disk until after the little preview disappears or is manually dismissed. In Windows the preview notification and file being written to disk happen simultaneously, and the system automatically copies the image to clipboard which Apple doesn’t do, saving further time.
Your network share issue could be something misconfigured at your work, I have no way to verify whether that’s something your IT department messed up. My personal Windows and Linux systems are both connected to my SMB shares at all times through their graphical file managers and I don’t notice any difference in performance.
Last rebuttal: your finder experience in Macintosh classic (System 3.0 when the 512k debuted) is fast because there’s no multitasking, when you are at the desktop of a Macintosh the only application open is Finder and it’s already in RAM. Open any other application and then close it. You’ll notice a relatively long delay (10 seconds in my testing, although I don’t have real hardware) after closing the application before the desktop and finder are responsive again. You can try this on your preferred Macintosh emulator online.
> Make the browser development the charitable work
They probably cannot do this. The IRS generally does not consider writing open source software to meet the requirements of a 501c3, for example [1]. They aren't super consistent about it so some groups have gotten 501c3 exemption in the past, but for the most part there is a reason that 501c3 open source foundations focus on support activities, conferences, and not software development.
> accept funding to non-charitable company
They could do this, just like they did for Thunderbird, and I wish they would.
Maybe we can make a deal with the government. In exchange for making the development of open source software a tax exempt charitable work, we remove private jets from the list of purchases that can be deducted from income taxes. Seems like a win-win.
Why would the government wish to remove private jets from the list of purchases that can be deducted from income taxes? Why would they be unable to do this without making a deal with people who want open source software development to be designated a charitable purpose? How would making a deal with people who want open source software development fix this?
> Why would the government wish to remove private jets from the list of purchases that can be deducted from income taxes?
To bring in tax revenue to pay for things we actually need.
> Why would they be unable to do this without making a deal with people who want open source software development to be designated a charitable purpose? How would making a deal with people who want open source software development fix this?
Because my comment is this thing we call a joke, it was meant to highlight the absurdity of the fact that some obviously charitable work gets taxed, while toys for billionaires are tax exempt because...reasons?
Not in current practice. That is why you have to get a certificate from a trusted CA. If your CA isn't in the browser's cert database they will reject the connection even on the first time. If browsers allowed TOFU we would still be able to use self-issued certificates, without manually distributing certs to anyone that uses your service.
I'm now aware of three protocols that Exchange has used: MAPI, EPW, and Microsoft Graph. Are all of these supported/commonly used in both on-premise and Office365 environments, are are some limited to one or the other?
The 501c3 tax exception is specifically for charitable organizations, and the law and IRS interpretations exclude a number of groups that would colloquially fall under that description. On top of that there are many groups who aren't doing charitable work, but want to reinvest all revenue back into the organization and not be beholden to shareholders (private or public).
That's not true. Charitable organizations are just one of many groups that qualify as a 501c3.
Groups dedicated to scientific, literary or educational purposes also quality.
The reason this is a problem is that Rebble is using their being a "non-profit" as a point of advertisement but there is essentially no difference between someone owning a for-profit company, and someone controlling and heading a non-profit company where they set their own salary and are not a 501c3.
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