scythe

16 ms·

241.
by scythe 1y ago
>in this HN post [1] shows claims of COPs of ~15 for Delta Ts of 1.3°C. >A compressor based cooler gets a COP of about 4 in the real world. Real life refrigeration usually isn't very interested in a difference of 1.3 C. The Carno
242.
by scythe 1y ago
Part of the reason that cheap meat is cheap is because it's a byproduct of producing nice meat. Chicken thighs are cheap because the chicken seller makes money on breasts. Round is cheap because the cow is paid for with the revenue fro
243.
by scythe 1y ago
I read your careers page out of curiosity. It's like all software and equipment (what I interpret from "hardware"). Shouldn't you also hire some structural engineers and similar?
244.
by scythe 1y ago
The root of the issue here is underinvestment in storage. The weather is unpredictable, but the Sun is not. It doesn't suddenly get vastly brighter. Oscillation occurs within a predictable range. But partially because storage keeps get
245.
by scythe 1y ago
With solar humanity's total power consumption is just a fraction of a percent of the Sun's luminance. With wind in some areas you get towards a larger percentage. But either one pales in comparison to the impact of hydropower whic
246.
by scythe 1y ago
Paper here: https://arxiv.org/abs/2502.06137 I had the opportunity to take a harmonic analysis course in grad school. I passed it up. It was only tangentially related to my research at the time.
247.
by scythe 1y ago
From the abstract: >system-level coefficient-of-performance is ~15 for temperature differentials of 1.3 °C. There's a long way to go. As far as I know, the leader in condensed-phase refrigeration cycles is still the sodium iodide io
248.
by scythe 1y ago
Japan's population peaked decades ago. Surely it can't be a mere lack of land that drives the cost of rice. That would have been worse in the 1990s. Plus, rice is a super high-yield crop and Japan has rich volcanic soils. Many cou
249.
by scythe 1y ago
Another thing to avoid are hardwood floors. I live in a concrete high rise but that wasn't enough to deal with a neighbor upstairs who would stomp around in shoes on the — admittedly very nice looking — white oak floor. It's basic
250.
by scythe 1y ago
You should probably read The Market for Lemons . It's incredibly difficult to predict from the buyer's perspective how noisy an apartment will be. This is [one reason] why we have regulations.
251.
by scythe 1y ago
You know, I work in hospitals all day and people are always stomping around and moving heavy equipment. But you never hear anything coming through the ceiling. Contact your state representative and ask them to do something about the buildin
252.
by scythe 1y ago
More generally, both are cases of a diagonal argument.
253.
by scythe 1y ago
The title is clickbait and misleading. Even though it is the original from the university press release, it should be changed for HN. From the study: >We identified the illicit use of leaded bronze in nonheating device components in co
254.
by scythe 1y ago
I think you're half right. But there are cultures in which people save money. (You can just run a web search for "savings rate".) My hypothesis is that "human" nature does play a role, specifically a very general
255.
by scythe 1y ago
How many levels of "appear to" are we supposed to tolerate in order to minimize the perspective here? Here's where we started: >The Germans in this article all appear to be aligned to [...] So the person we don't like
256.
by scythe 1y ago
The answer to your question is just the next paragraph after the sentence you quoted.
257.
by scythe 1y ago
>Economic opportunities for professional writers have declined dramatically. The two crucial pathways were mentioned for novel writers to support themselves economically: (1) magazine writing and (2) academia. In the first case, magazine
258.
by scythe 1y ago
If this was about the benefit to the United States, then we would have had months of public buildup and debate like we did with the war in Iraq. It is hardly an example of a good decision, but history shows that it was at least a popular
259.
by scythe 1y ago
So, now that the US is distracted with a war in Iran, it creates the perfect opportunity for China to attack Taiwan.
260.
by scythe 1y ago
I would expect that the end of the current Iranian regime brings about a heavily military-influenced fake democracy that structurally resembles the current government of Pakistan. The clerics are a paper tiger. Their domestic support base h
261.
by scythe 1y ago
The only report of a bulk Fe16N2 magnet I remember reading about used a 2 GPa (300 kpsi) diamond anvil to compact the powder. I can see why that might be economically impractical right now. Also there was a bombshell paper that came out cla
262.
by scythe 1y ago
Popular understanding, particularly in the United States, is a little behind the scientific opinion on the subject. Most women I've talked to are still under the impression that endometriosis can only be diagnosed by laparoscopy. But t
263.
by scythe 1y ago
I've come to think the American norm is something of a self-fulfilling prophecy. Bedsharing becomes dangerous mostly when the parents fall asleep intoxicated. You might have noticed that you're much more likely to wake up with y
264.
by scythe 1y ago
>Still, some clinicians use them to treat conditions like migraines, dementia, uterine hemorrhaging and Parkinson’s disease. I think it's more common to use synthetic derivatives of ergot alkaloids like ergonovine. But ergot itself
265.
by scythe 1y ago
The viscose process used to produce cellophane is highly toxic. The lyocell process is safer because the chemicals used are less volatile. But both require a lot of fine chemicals (carbon disulfide or N-methylmorpholine oxide or, recently,
266.
by scythe 1y ago
I think what I find hardest about that kind of question in particular is that the first clause prompts me to think of problems that I didn't handle very well, but obviously I want to tell a story that makes me look good. Eventually I
267.
by scythe 1y ago
I think a restricted version might be possible to implement: only allow transformations if the transformed version has strictly fewer numerical rounding errors on some inputs. This will usually only mean canceling terms and collecting expre
268.
by scythe 1y ago
This is a downright hazard. I scrolled down to find one that wasn't solved yet, and the next thing I knew it was 30 minutes later and I had solved a hundred of them.
269.
by scythe 1y ago
Skiers also have many words for snow: powder, slush, corn, corduroy, crust, ice (not ice), blue ice (actually ice), windpack, popcorn (unrelated to "corn"), and of course the California favorite: cement.
270.
by scythe 1y ago
The real question for practical purposes is how much of these fine chemicals are actually consumed during the process and how much can be reused. The foul-smelling Kraft process has held on to its title in paper production because the chemi

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