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Data centers raise nearby temperatures by up to 4 degrees in Phoenix

techxplore.com
40 points·by limitedfrom·vor 2 Monaten·3 comments

The Very American, Intense World of High-School Debate

newyorker.com
13 points·by limitedfrom·vor 2 Monaten·0 comments

comments

limitedfrom
·vor 2 Monaten·discuss
Underlying paper here: https://asmedigitalcollection.asme.org/sustainablebuildings/...
limitedfrom
·vor 3 Monaten·discuss
On the magazine itself, it seems to be labeled "Why Japan has such good railways"[1] instead

[1] https://worksinprogress.co/issue/why-japan-has-such-good-rai...
limitedfrom
·vor 8 Monaten·discuss
186 mi for 31.5 kWh would indicate nearly 200 mpge which is quite impressive.
limitedfrom
·letztes Jahr·discuss
Canned versions (original, Diet, and Zero) are in the dataset if you search for "Coca-Cola"
limitedfrom
·letztes Jahr·discuss
Americans are driving more than ever and fatalities per capita has been steadily rising again since the 2010s per the Wikipedia provided data. The goal should be fewer deaths overall, not fewer deaths per VMT.
limitedfrom
·letztes Jahr·discuss
Reminiscent of halo cars in the automotive industry. Fancy flagship vehicles produced to show off the brand and bring attention (to their other vehicles), but not necessarily to become profit makers themselves.
limitedfrom
·letztes Jahr·discuss
Back in 2020, VSCO and Kelly Shane Fuller (same one from [0]) seemed to have figured it out, at least to make a preset. Perhaps if they are willing to put in the effort, they should reach out to them (and not just fall back to developing in B&W).

https://eng.vsco.co/reviving-kodachrome/

[0] https://emulsive.org/articles/darkroom/developing-film/they-...
limitedfrom
·letztes Jahr·discuss
See my reply up on the original question.
limitedfrom
·letztes Jahr·discuss
These pages[0][1] has more details. The families had three different emblems to start. The zaibatsu came up with the now famous three diamond design in in 1873[2], but there were no trademark laws until 1884, and many companies proceeded to use the logo. The pencil company first registered this in 1903. The zaibatsu finally got to it in 1914, but the earlier filing by the pencil company was honoured.

As for the cider company, sounds like they've been selling it like it since 1913[2], but registered it in 1919? My guess is that since it was a regional product with the product type in the name that's already established (like [3]), they allowed it.

[0] https://ja.wikipedia.org/wiki/%E3%82%B9%E3%83%AA%E3%83%BC%E3... (translated: https://ja-m-wikipedia-org.translate.goog/wiki/%E3%82%B9%E3%...) [1] https://www.buzzfeed.com/jp/kenjiando/mitsubishi-pencil [2] https://www.mitsubishi.com/ja/series/yataro/11/ [3] https://ja.m.wikipedia.org/wiki/%E5%9C%B0%E5%9F%9F%E5%9B%A3%...
limitedfrom
·letztes Jahr·discuss
Unfortunate that's your experience. Personally, at least with my 3-4 speaker setup (multiple Sonos and 2nd gen AirPort Express feeding non-Sonos speakers), I've never really had issues (maybe out of sync once or twice a year). Your mileage may vary I guess.
limitedfrom
·letztes Jahr·discuss
Glad to be using the Sonos speakers as just AirPlay 2 speakers. No issues, no app to deal with (never even opened them past setup), perfectly synchronized with non-Sonos AirPlay speakers as well.
limitedfrom
·vor 2 Jahren·discuss
Yeah, if you read the Korean language article[0] (or the Namu.wiki article[1]), they both refer it the function as preserving and storing kimchi, not really going for further fermenting. Most folks I know buy prepared kimchi and use the fridge to store / have it last a while (as well as using it as a secondary fridge). Given that optimal kimchi ripening goes from 2d to 35d changing the temperature from 20°C to 4°C[2], I suspect it would take an enormous time trying to ripen it purely in the -1°C fridge (typical kimchi fridge temperature).

[0] https://ko.wikipedia.org/wiki/%EA%B9%80%EC%B9%98%EB%83%89%EC... [1] https://namu.wiki/w/%EA%B9%80%EC%B9%98%EB%83%89%EC%9E%A5%EA%... [2] https://ift.onlinelibrary.wiley.com/doi/abs/10.1111/1750-384...
limitedfrom
·vor 2 Jahren·discuss
Not really, the advertised temperatures of most brands' kimchi fridges[1] are -1°C (with lower -0.5°C band of stability as well), which is supposed to be mimicking "buried outside in Korean winters" condition.

[1] Example here https://www.lge.co.kr/support/product-manuals?title=manual&m..., see table on page 10, it's between -0.7°C and -1.7°C for kimchi.
limitedfrom
·vor 2 Jahren·discuss
You would have to make some trade-offs with emissions/fuel economy though. Harder wearing compounds generally lead to higher rolling resistance, which means higher energy use per distance. I’m inclined to think that microplastics pollution might be worse than tailpipe emissions (or electricity generation pollution depending on your source)?, but it wouldn’t be straightforward. While there will probably always be uses for autos, we should encourage other methods of transport whenever possible.
limitedfrom
·vor 2 Jahren·discuss
Except the perception of anomalous dinner time in Spain is also due to time zones. Spain switched to CET in 1940 to be in solidarity with Germany[0] (nowadays it will still translate to easier coordination with France, Germany, and Italy), meaning that despite much of the country being west of London, it shares the same time zone as Serbia and Poland. This means that if you live your normal life according to the sun, the clock time will 1 to 1.5 hours behind depending on where you are in Spain[1].

[0] https://www.npr.org/sections/parallels/2013/11/30/244995264/... [1] https://imgur.com/source-http-wp-me-poxsk-pq-8IFLFoJ
limitedfrom
·vor 2 Jahren·discuss
The flip side is that she might not want to criticize the translator (and translations) that brought her the biggest amount of success & fame. Plus, it's possible that the author herself is more comfortable with the amount of "deviation" than some readers and that's a personal preference thing at the end of the day.
limitedfrom
·vor 2 Jahren·discuss
Deborah Smith translated her biggest works (The Vegetarian & Human Acts). In fact, her translation arguably single-handedly led to Han Kang winning the Man Booker International Prize in 2016, which then made her popular outside Korea. The translations have been quite popular, but a bit controversial as well[0].

[0] https://en.wikipedia.org/wiki/Deborah_Smith_(translator)
limitedfrom
·vor 2 Jahren·discuss
I did not suggest that they have twenty vehicles either. I replied on a different post, but an average school bus route in the US is about 32 mi[0]. Zum buses are capable of 155 mi[1]. Given their "up to" language, I'd like to think that they actually offer smaller battery capacities as well, but especially for a non-rural district like Oakland[2], if one were to carry 155 mi range for a typically 32 mi or less route, it would be quite an overkill.

One can have a few 155 mi range vehicles for field trips, sports games, etc. but the majority of the fleet can be much smaller for every day uses.

[0] https://www.nrel.gov/docs/fy14osti/60068.pdf [1] https://www.ridezum.com/blog/electric-school-buses-the-benef... [2] https://gopublicschoolsoakland.org/wp-content/uploads/2016/0...
limitedfrom
·vor 2 Jahren·discuss
City buses in many districts are tied to their operator's licenses, displayed somewhere in the buses; same with taxis in most places I've been (prior to proliferation of ride shares). Not that they need to be tied to a vehicle necessarily, but I don't see why you think school bus drivers wouldn't be capable of getting into correct vehicles nor why that should be how a district picks a fleet of buses.

Also, for the SFMTA[0] as an example, different routes use different vehicles depending on the size & route & electrification. It doesn't have to be air travel to want a few varieties to fit all the needs.

Here are some stats[1, page 3]: An average school bus route is 32 miles, with max observed being 127 miles (and this is most likely a very rural route, not like the Oakland example here; in fact, here's an average of student distances for Oakland[2]). Given such a long time period between school start and end times, I expect most of these to be able to be charged between the two shifts with the exception of some field trips.

If you look at the Zum website, their buses are capable of 155 miles[3]. I suspect this was designed to fit the highest range case described in the paper, but almost 5x the average route distance. For most non-rural school districts, even if you account for some detours and faulty charging even, x2 (or x3, sure) seems reasonable to keep as the majority of the fleet. And perhaps you can keep a few of the largest range ones if the school regularly has field trips in that range.

For what it's worth, ETOPS regulations are interesting look for how aviation deals with failure modes for range/routing. Assuming failures are rare, the idea is to ensure the planes have enough to get to safety, not just put as much range as possible on all the planes.

[0] https://en.wikipedia.org/wiki/San_Francisco_Municipal_Railwa... [1] https://www.nrel.gov/docs/fy14osti/60068.pdf [2] https://gopublicschoolsoakland.org/wp-content/uploads/2016/0... [3] https://www.ridezum.com/blog/electric-school-buses-the-benef...
limitedfrom
·vor 2 Jahren·discuss
To some extent, definitely. But I'd like to think that

1) School districts could buy a mixture of different ranged buses to fit their needs. After all, airlines have a mixture of planes in the fleet for different range / needs and not just have all the fleet be the largest / longest range model, and

2) The manufacturer offers range conversions later since it's a more commercial use than consumer EVs, especially when they want to sell it to different school districts. They probably need to do battery swaps when batteries degrade beyond a certain degree anyway.

Carrying additional capacity takes a lot of material (that could be used for other batteries especially) and energy. I get that it's convenient, but I hope folks put a little care into it than just put large batteries everywhere.