hwillis

39 ms·

451.
by hwillis 4y ago
> electricity sources for heating Weird question. You're looking for "carbon intensity", the CO2 emitted per kWh: https://www.statista.com/statistics/1133295/electric-sector-... > percentage
452.
by hwillis 4y ago
> If I didn't have a propane furnace I'd have to fly to Florida every winter. Keep the propane. Use it 5 days every year. You still have 95% of the reduction in CO2 and pollution that a heat pump brings, and reliable heat. N
453.
by hwillis 4y ago
> If you get a nasty February ice storm that cuts a power line, you can be without electric power in 0F weather for up to 5 days. I guess people can install natural gas generators for that occurrence Why would they? They already have o
454.
by hwillis 4y ago
> There also isn’t a low temperature heat pump solution that works for radiators. There are. Here's one [1] that works down to -26 Celsius (47 F below freezing!!) and connects to radiators. In practice it will also work below -26
455.
by hwillis 4y ago
700k people per year in the US die from heart disease. There are ~18k surgeons (of all kinds) in the US. So even if 10% of them were cardiac surgeons, each surgeon has one person dying per day to worry about. They're busy . Heart s
456.
by hwillis 4y ago
Growing pains. Not really unlike how it used to be hard to start cars in cold weather- newer cars have heaters built into the battery, since its basically zero-cost, and enough insulation that they can get up to temp quite quickly. Heatin
457.
by hwillis 4y ago
Is there something that makes the electric Volkswagens, Hyundais, Nissans, Chevys and Fords different from the conventional cars?
458.
by hwillis 4y ago
> Even weak indoor light would eventually charge it. No, it wouldn't. Sunlight is ~1 kW per m^2. A medium-sized room has maybe a couple 60 watt bulbs, spread over 10+ m^2, each of which radiates ~10 watts of actual light. Light in
459.
by hwillis 4y ago
It would take about 50,000 hours (5.7 years) to charge a 10 Wh iPhone. A solar cell on the back of the iphone would take roughly a full sunny day to charge an iPhone, with ~2 watts peak output.
460.
by hwillis 4y ago
You really should not. 60 beats per minute means that in ten years the leads of a pacemaker will be bent *315 million* times. That's an order of magnitude higher than we typically test fatigue resistance, and even if we were that con
461.
by hwillis 4y ago
Literally all nvidia has is the circuit design. They do not do any fabrication, and they get all their stuff made in taiwan. If china had the layout, they would just get it made in taiwan.
462.
by hwillis 4y ago
If we can go 1% the speed of light, a 70,000 year journey is roughly the length of time humans have been living in shelters. It's an extremely long time, but it's firmly a social and technical problem. The people who step off th
463.
by hwillis 4y ago
> I would prefer to see them based on diagnosed cancer rates, but that data set probably doesn't exist. Definitely not, especially in the US. Cancer is very highly correlated with age and body weight. Maine has one of the highest
464.
by hwillis 4y ago
https://www.researchgate.net/figure/Scanning-electron-microg... "electron microscope pollen pollution" showed a few similar papers. I did not read them, and microplastics seems a little... unexpected, but th
465.
by hwillis 4y ago
> 29% of facilities ProPublica contacted said the EPA’s data on them was wrong. I don't think it's necessary to point out why this is not very convincing > And why didn’t the government pay for an interface and analysis that
466.
by hwillis 4y ago
Note that if we ran out of samarium and neodymium tomorrow, we'd still use SRMs instead of induction motors. SRMs without magnets are still extremely efficient, just larger than induction motors. Despite being larger they are still c
467.
by hwillis 4y ago
> The way this article conveniently ignores that fact leads me to believe there's no chance of the modified synchronous reluctance motor exceeding the efficiency of the induction motor and therefore will have no impact on the electr
468.
by hwillis 4y ago
Support systems have absolutely nothing to do with holding anyone accountable ever, and I don't know why you think they would. > "You cannot possibly be this dense" is referring to whoever is making the decision. Is this r
469.
by hwillis 4y ago
Right... do you yell at waiters and phone support people too? You're doing that to someone who has absolutely nothing to do with the problem you are having, is probably often harrassed by people like you, and who are at literally the
470.
by hwillis 4y ago
1. Yes- as salaries are still low, you should be skeptical that companies are really trying to get talent. 2. On the other hand, the US(and/or EU) is not the only market. If engineers are being corned by the established large firms he
471.
by hwillis 4y ago
> Its about that the best minerals people all predict that lithium, cobalt, nickel and graphite is gone be in shortage. 6% of nickel is used in batteries. 2.7 million tonnes annually are produced, enough for billions of kWh of batteries
472.
by hwillis 4y ago
> (e) STANDARD HOSPITAL CHARGES.—Each hospital operating within the United States shall for each year establish (and update) and make public (in accordance with guidelines developed by the Secretary) a list of the hospital’s standard cha
473.
by hwillis 4y ago
> Sometimes CSV files themselves are ambiguous because they don't use any quoting so you end up with some lines that have more columns than others, and require manual repair line-by-line by a human. It's wild that we haven&#x27
474.
by hwillis 4y ago
It's the opposite. You don't have children when you die, and evolution occurs overwhelmingly due to genetic diversity rather than iteration. That is, mutations are not nearly as important as the number of parents with diverse
475.
by hwillis 4y ago
Standing is determined in the course of a suit, and this is in LA.
476.
by hwillis 4y ago
> So someone had to be crossing lanes one way or the other for the collision to occur in the first place. Maybe not, I am not a traffic expert or familiar with the area, but that is how it looks to me as an experienced driver. The victim
477.
by hwillis 4y ago
Given that this was Dec. 29, 2019, if you are correct about when light detection rolled out then it seems like it is not unclear
478.
by hwillis 4y ago
You can sue anyone for any reason.
479.
by hwillis 4y ago
Russian nuclear is ~17% (compare US at 19%). Overall it is slightly less CO2-intensive than the US, as it uses less coal. They have almost as much hydroelectric power as the entire US renewable sector.
480.
by hwillis 4y ago
You don't have to worry about dozens of other applications fragmenting your memory. You keep your threads neat and your memory neat, and you don't have to worry about failed allocations. Another reason to keep memory contiguous i

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