skysight-inc/HackerNews huggingface dataset:
Before you try to understand electricity try to understand work and energy. Know the definition for a watt and what that means mechanically for example.

For really basic things: maxewels equations, ohms law, and the idea that in a closed system potential and kinetic energy are constant. Just grab a university level physics book.

V=IR (ohms law) gives you most of what you need for DC circuits. Remember that power is volts x amps so you can exchange one for the other (for free in an ideal world.)

Alternatively if you want a practical understanding here’s what I learned from as a kid: forest mim’s book (it’s wrong in some ways but it works) the art of electronics (this has anything you could want to know and is well organized and written, like an O’Reilly book for electronics in general) and this really old book I found in a used book store titled “introduction to pulse circuits.”
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...while trying to peddle absolute economic lies, which were called out by the independent UK statistical authority as misleading. In the same breath also lying about him not running a candidacy to be PM, declining to name any figures backing his assertions.

What are you trying to say?
I tried to opened a business at that time and they asked what countries we think we might have customers in. I came up with a list off the top of my head and on that list was a potential customer in Mexico (which has the 15th biggest economy in the world so it shouldn't be that unusual). Anyway we never got anywhere with them and 3 months later they told us they couldn't open the account. I too wish they would have been open about it. It only took 3 days to get an account opened with Barclays across the street.

Ironically HSBC at the time had adverts plastered at airports all over the world bragging at how good they are for international businesses...
Here's the thing: Reading something extremely close to your eyes is unhealthy and causes eyestrain. (Your eyes work harder to focus on closer items.)

If your monitor is so close that you can actually see the details described in the article, you're in the eyestrain land.

I keep my monitors far enough away that I don't see these details anymore.
At no point did they "follow the science." So called scientific racism was always built with the conclusion of (usually) white supremacy in mind. Blacks would never be found superior no matter what evidence existed.

The author seems to be a proponent of "intelligent design," another idea that begins with the conclusion, which may explain why they see this as science.
Enigma and IBM Cloud Are Protecting Human Lives as Well as Data Privacy
Where/How to find like-minded people (co-founder)?
Where one can find like minded people?
Would love to hear some of your stories about how you found like-minded people/con-founder.
Thanks,
Signals always seem (at least to me) to be an early implementation of exceptions
I have gotten a visa and worked in other countries with less effort than trying to move app store. I just don't get it.

I now live in Finland, with a Finnish address and bank card and everything and I still can't get the damn thing to change. I refuse to accept that it is a technical impossibility to have a UK bank app and a Finnish one (for example) on the same phone.
Nitpick: Arrogance and incompetence - something we do so well!
SA is good, and Adrian prices their services responsibility. Fathom charges $24 / month as our 2nd tier and I do believe Adrian should offer a middle tier too. But I know nothing about his business behind the scenes, so I can’t comment. Ultimately, you can be confident that he prices his service to be sustainable, which we really respect.
“ And questions remain about whether any smartphone-based system reliant on Bluetooth signals will be accurate enough to be useful”

This is the biggest question for me. I’m interested in the actual public health usefulness.
> Long long time ago, computers used to have memory segmentation.

If you are using an Intel chip, they still do.
Good adblockers do DNS lookup to see if subdomain points to tracking server anyway.

Only completely self-hosted (your domain, your tracking server) solutions are resilient to adblocking
Fileside – a modern file manager with unlimited panes
I volunteer to write that script. I am very trustworthy and totally won't abuse this position to push my own political leanings.
I have a few years old phone which still has ivona on it, it's just perfect!! have a look at a sample - http://www.ttsforaccessibility.com/ I use british english, female voice, Amy - perfect.
Intel was trying to maintain backward compatibility, so the segments made sense. (They let you default to using the same 16-bit pointers as the earlier 8-bit CPU's, and only use the extended capability if you explicitly opted in by adjusting segment registers and the like.)

And given the cost of memory and CPU packaging pins, 20-bite probably didn't seem like too much of a loss compared to 24-bit addressing (or Motorola's internal 32-bit).
The quarantine for new arrivals has been in effect for 10 days [1].

Contact tracing was launched on 28th May [2].

It seems to me that what went wrong was a large number of UK residents were overseas in February/March (sspecially on ski breaks) to Italy, France and other mainland Europe destinations. The Government didn't impose any emergency isolation or quarantine on those arriving, as was the case for those arriving on repatriation flights from Hubei and other Chinese destinations.

Given much of the scientific analysis of the virus points to strains being descended from those in mainland Europe, it seems a key reason the UK wasn't "head and shoulders" ahead was the scale of this international leisure travel to countries that ended up most affected. Had those returning been put into quarantine, there might have been a very different outcome, but it's hard to say for sure.

[1] https://www.bbc.co.uk/news/uk-52774854

[2] https://assets.publishing.service.gov.uk/government/uploads/...
Open Source, Universal Payment Identifier
>NYT is squarely center right, politically.

Just because you are far-left, doesn't mean institutions to the right of you are actually 'right-wing' or 'center-right'. NYT is in no way a 'center-right' publication.
Incidentally, this happened to me yesterday. Roll20 told me that my library was full but didn't give me an obvious way to delete more than one item at a time, so I spent 40 minutes reverse engineering their API to batch delete everything I'd uploaded.

Naturally, I found the bulk delete function as soon as I had finished.
Almost six billion Earth-like planets in our galaxy, according to new estimates
It's a case of "plans are worthless but planning is essential". After the 2009 swine flu, the UK planned heavily for pandemic influenza, stockpiled millions of doses of tamiflu, etc. When the coronavirus came, instead of making a new plan for coronavirus they decided to just stick to the influenza plan, based on the reasoning that all pandemics are the same. Only, the two diseases are very different and by the time they realised that an influenza playbook wasn't going to cut it, it was way too late.
Seconded! And you can build your own adapters for other databases as well.
Lame no Linux option. Oh well.
How to make the healthiest coffee during Covid-19 lockdown
Other commenters on this thread pointed out that Apple reduced the subpixel rendering quality when retina display were introduced.
> 24:35 - PDP-11

I saw Amdahl (22:11), IBM (24:42), Data General (24:01) and DEC and endless IBM disk drives. Making everything talk to everything else should have been quite an accomplishment
I voluntarily live in the UK as an EU citizen. Most countries have faults, these are the British faults. Germany won't act without a manual to follow, in Hungary you need direct permission from the maffia (also known as the governing party); choose your poison.
I love that site! They’ve got a lot of neat stuff on holograms too.
"Appeal to authority" -- which is a huge red flag when it's brought up in a discussion, because it's usually an attempt to elevate nonsense as if all voices are equal and things like expertise and training/dedication aren't pertinent -- has zero relevance, and seems to be misunderstood a hundred times for every time it is actually understood.

An appeal to authority is disputing widely understood information by citing an authority as if it is an override. e.g. "my doctor told me that vaccines don't work": Against hundreds of thousands of experts and professionals, and a widely understood body of evidence, someone cites a dubious authority as a counter argument.

"My plumber says that lead makes you grow strong bones" "My accountant says that compounded interest is a myth". "My cousin has a chemistry degree and he says that global warming isn't real".

Does that somehow mean that every layperson needs to fill the world with their hot take of noise about COVID-19? No, not at all. This does not follow.

The argument to moderation claim makes even less sense, and I'm not sure you understand what it even is because it's woefully out of place.
I think recent news is showing that a practical implementation of New Zealand's approach is not sufficient to acheive the required containment goal.
> Oh, it has to land like the Falcon 9 as well, except hovering and lowering itself on a tether, like the Air Cav for Mars.

Here's a video that blows my mind every time I watch it. https://www.youtube.com/watch?v=h2I8AoB1xgU

Such a complicated landing sequence, and needs to work correctly the first time, all autonomously. And it worked!
My optometrist tells me this is not true. Exercise does not hurt your eyes.
I've also moved on to board games that have some element of randomness as otherwise I try optimizing to the point where it ceases to be fun and becomes work. Overall I've found myself way too competitive, especially around younger family members, and these days I instead play the role of GM while letting them play. Most board games don't have a role for GM, but with a little creativity it is easy to modify the game so that players focus more on the fun of playing their own roles while I 'run' the game. It also allows for the interjecting of a story into the mechanics that I have found younger players to greatly enjoy.
>That is why I am absolutely against abolishing paper cash.

Ah, took me a second. You don't mean paper cash in reference to fiat money vs the gold standard. You mean hard cash being replaced by plastic account balances in a sort of cyberpunk vein. Totally agree, great point.
This reminds me of the way ssh became so popular so quickly in the mid-1990s: it was simultaneously more secure and more pleasant to use than unencrypted telnet or rlogin. I've tried to take the general lesson when writing my own systems: if security is making anything less convenient, I'm not doing it well enough.
What is this functioning government of which you speak?
> Thinking about the power we give to big entities is a central mechanism to build the society we live on. That's why we should think about what we buy, the media we consumme, etc.

Elsewhere on HN today we have 'On the Folly of Rewarding A, While Hoping for B (1975) [pdf] (web.mit.edu)' https://news.ycombinator.com/item?id=23549203 in a way, you could say it applies to this whole situation quite well.
>It's sits center-left in that study because the study centers around the center of US media coverage, not any principled definition of political center; the NY Times viewpoint is, and has long been, neoliberal corporate capitalist

Your contention is that the center is really defined by the progressive/Marxist/"democratic socialist" minority? In that case, I guess anything to the right of that minority (i.e. everything) would be see as right-wing. Unfortunately, that's not the actual center. A better descriptor for those groups is 'far left'.
https://github.com/payid-org
If you're using Ruby on Rails, perhaps consider the "Ahoy Matey" AKA "Ahoy" free and open source gem created by Instacart [1].

I've used it in my personal projects and have never had any issues. It's great to have no vendor lock-in and full ownership of user metric data. If you go this route, please be responsible with the data and follow all relevant regulations & guidelines (ex: GDPR) regarding its storage and usage.

[1]: https://github.com/ankane/ahoy
> It is already estblished that those who had COVID develop immunity for it

Who claimed something opposite to that and where? I don't understand why you write that at all.

I'm arguing that getting the coverage directly from the experts who do reflect the knowledge of the whole fields (and who don't promote some narrow agenda like Ioannidis) is provably better than getting it from the politicians or the press. The goal is always to recoginize these who introduce a bias which distorts the truth.

What are your "better" sources (as in, more expert and less biased) that cover this pandemics?
PowerPoint Live is now generally available
Most obfuscation techniques are lossy. You lose information such as project structure, names of files, data types, variable names and so on. Decompilation and deobfuscation might give you a shadow of the original source code but the benefits are overstated because the advantages over working directly with assembly code aren't that big. Most of the time is spent finding the dozen relevant functions out of 10000. If you truly need access to the entire source code your time is better spent on an opensource project.
What token hardware does support x509 certs (and thus compatible with an SSH CA?)
Take a look at these articles - they start with first principles:

http://amasci.com/ele-edu.html
Leaving the app to one side, NHS Digital has been doing good stuff for the last couple of years: https://digital.nhs.uk/
Invisibilia, an NPR show, ran an episode last week on a case of Wirecard's onslaught of intimidation and pressure on a short seller looking into shady Wirecard dealings: https://www.npr.org/2020/06/02/868001948/trust-fall

Wirecard's tactics included a disinformation campaign smearing the target's reputation with false accusations, following and photographing the target, sending 'bodyguards' to intimidate the target at his home, and a constant flow of sophisticated phishing attempts.
No way 8 upvotes in one minute after submission is organic, flagging this.
Can you expand more on "are made up of the semilattices over a monotonic operation"?
A trivial way way to get around that:

Make calls to two seemingly benign requests early on. Now you can send whatever data you want to without triggering another prompt by successively requesting the first resource to indicate a '0' and the second resource to indicate a '1'.
I'm fond of using interpolated search on hashed data. I've never tried it on data with dynamic insertions/deletions.

I would have anticipated the cost of maintaining the sort making it not a winner. Interesting to see that it can actually work out in practice!
Exactly what I was thinking - I don't see how this approach will work in practice with the time it takes to find and positively identify a Covid-19 case, as the chain of contacts will become enormous.
Context matters. Per the other comments up-thread, the letter was a response to a request for help in advertising a specific book (Finnegan's Wake) that Joyce made of Wells. Not writing the letter and just not responding to the request would be fairly rude too, no? Just refusing without expalaining why would also be a bit odd, given that Wells had provided just such help for Joyce's previous work.
Are you claiming that fire from an unoccupied police car somehow spreads over non-flammable cement/asphalt? If so, you may have some misconceptions about the nature of fire.

I think it's fairly clear that this fire was not intended to spread and had little chance of spreading.

To be clear, I'm not saying what she did was right--but I am saying that if we look at intentions and what was likely to happen, this clearly was not done with the intent of destroying anything but property.

And to be clear, if you look at the George Floyd murder and protests, and your biggest concern is the torching of two unoccupied police cars, you aren't concerned about justice or public safety.
Moomins and the Finnish Culture
Maybe because their life, family and friends are in the cities they're in? You can have attachments to the place you live in and resent gentrification at the same time.
Privacy Policy [1]:

> Human Web

> ... turned on by default

> Data Collection: In order for Human Web to function we automatically collect non-private URLs, search queries along with search engine results pages, suspicious URLs that could potentially be phishing websites, information related to safe and unsafe trackers, and information related to the prevalence and performance of Trackers.

So opt out data collection, I thought better of Recommend Extensions. They really should use leverage to make safe defaults and forbid dark patters.

[1] https://addons.mozilla.org/en-US/firefox/addon/ghostery/priv...
But then plenty of the same people that seek to police speech online and to claim the moral high ground are capable of and comfortable with quite horrible and unjustified forms of harassment, e.g. extreme levels of doxxing, getting people sacked for hurty tweets, even hounding people to suicide.

Let's not pretend there aren't plenty of cynics that employ woke culture to sinister ends.
Listen Deeply, Unite Widely, Act Boldly
We run our own analytics solution based on a js library, a small go app and ClickHouse for data aggregation.
With a very cheap and small setup you can handle hundreds of millions of events per day.
I run a reasonably large website and about two years ago it dawned on me that I never checked Google Analytics. It was completely useless. It wasn't telling me anything useful. I also knew that it was marginally user hostile (or at least perceived as such) and affecting page performance, even if only slightly.

Removing it felt momentous and insane. But in November 2018 I finally plucked up the courage and removed it. The crazy thing is, until this article appeared on the top of Hacker News reminded me, I had completely forgotten that I had removed it. Far from the world ending, it turned out to be the most inconsequential thing imaginable.

(I remember pouring over web server logs in Analog and AWStats 15+ years ago. Now I honestly can't remember why. I think it was some combination of vanity... and because everyone else was doing it. I suspect for most web developers GA was just the natural evolution of that muscle memory.)
A concise guide to the latest Go generics draft design
One of my favorite mountaineering photos is one of Ed Viesturs navigating a long traverse across a > 50 degree snowfield high on K2 with Scott Fisher kneeling in the background on belay. Can't seem to find it now but I think I first saw in this book.
I remember in high school I had trouble getting it because I thought ohms law had too many variables. Then I realized that a 5V supply will always be 5V in normal operation and ohms law means the current varies.

All of the water analogies were unhelpful for me. I did better just doing the math and seeing the result.

Someone else mentioned MITx. I did that and it was revolutionary. I also have a pretty good book called Practical Electronics for Inventors.
The UK Parliament is the mother of modern representative democracy, but it's so old that it now looks a bit like your grand-grandma: on a wheelchair, muttering incoherently most of the time, and struggling to understand anything in the conversation.
Silicon Valley is an excellent example of decades long government funding and commitment spawning a world leading ecosystem.

See e.g. https://steveblank.com/secret-history/ for a nice overview.
I would give the centralised app approach some credit - there is some good science around why being able to react to reports of symptoms (without a test) could actually have significant positive benefit.

Some of the feedback seems to be frustrating (for those building a system like this) in that it came down to more human factors like people not wanting to receive this kind of news via a message on their phone, and it scaring them.

I think the constant delaying to the app is a real problem, but it does appear to have become a target of pot-shots from all sides of the political spectrum. Despite this, some of the innovation that went into the app seemed to be quite impressive, and I think it's a shame we won't get to see the outcomes of a "well-thought-out" centralised app compared to the decentralised ones. My concern with the decentralised apps is that they are reliant on testing, testing means latency, and given the incubation period of covid, it seems people will be at their most infectious, spreading it to the next generation of recipients, at the time they are notified they may have been exposed.

At least in my view, getting notifications out ASAP is most important given the pre-symptomatic spreading, and the centralised approach seems to both aid that, and help get people able to stop isolating if it turns out they weren't exposed to Covid (i.e. they and others exposed to same person don't have symptoms in 5 days, thus suggesting a false alarm). There was more to the centralised app than purely "centralised vs decentralised", but there's clearly other issues in the approach to handling covid.
Or decode the x86 stream to find the next instruction. :-)

Next C statement is pretty cute, though.
> And I disagree with another commenter here saying Analytics is just for vanity. That's not true — even for a personal blog analytics are useful to see which articles are still being visited and thus need to be kept up to date, or in case content is deprecated, the least you could do is to put up a warning.

Some examples: I maintained a Vim ChangeLog for a while (which is quite some work), and turned out no one was reading that, so ... why bother?

In another case, I wrote an article about "how to detect automatically generated emails" and I thought it wasn't actually that interesting and no one read it so considered archiving it, but turned out quite a few people end up there through Google searches etc. and I ended up updating it instead of archiving it, as it was clearly useful to people.
At this point there is little fear of running out of oil and gas. The hydrofracking technology that is applied in the United States would work in many other places.

The real problem is global warming. The IPCC is only allowed to show projections until 2100, but if you run the models to 2200 you start questioning the survival of mankind.

There is the good news that U238 + n = Pu239 and Th232 + n = U233 but it hasn't been an easy road.
Nuclear Command and Control – Security Engineering – Ross Anderson [pdf]
Prominent LGBTQ+ Technologists, Past and Present
Shoot I learned to drive on a Ford Bronco that was as old as I was. My friend's mom was still driving an ancient Toyota Tracel until maybe ~3-4 years ago.

Get off my lawn, etc...
So recently I noted that Dickens' re-evaluation came 70 years after his death https://news.ycombinator.com/item?id=23454834 - it is now 79 years after the death of Joyce - is there a re-evaluation under way, is he going down, and if so who is going up? I personally don't think Wells is going up, but Verne might be (based on nothing more than feeling).

on edit: although of course there would be no reason that the critical reputation of Verne should be gained at the expense of Joyce. Just that we are far enough away from a generation of writers that you would think there would be some shaking up of the critical order.
Useful context about the film, from the New York Times's in-house historian: https://www.nytimes.com/times-insider/2014/11/13/1978-farewe...