skysight-inc/HackerNews huggingface dataset:
Unlikely. Hydrogen in this use is a pollution amplifier. Additionally it is very dangerous to store and transport. A hydrogen fire has no color. Hydrogen make metal brittle and likely to fracture.
Nuclear has been and continues to be viable economically speaking in several countries. France is currently selling nuclear power to providers at about 7 cents per kWh. If simpler and safer designs are approved we can see huge improvements in this area.

However it is starting to look like improvements in battery technology will make nuclear unnecessary in the long run and wind/solar are getting to be insanely cheap. New pressurized water nuclear plants would be impractical at this point for sure. Molten salt thermal neutron reactors are promising, but even a test reactor for them is more than 5 years away at which point solar and wind will be even cheaper.
Homemade PCBs for Beginners
Looking for an enthusiastic co-founder who share the vision and help me get my product to the next level.

I'm Full Stack Developer, just launched the BETA version of
http://flySuperCheap.com

With the mission to become the best Cheap Flights Finder Service, The ideal co-founder can be either another Technical person or a marketer/product.

Contact me at the email on my profile and I will share more details on how I'm already ahead of the competitors on Search Results and user experience.

With this launch I kind of closed a phase in this project, so I'm also open to hear about any other interesting idea to partner on.
I enjoyed the slides, and wish the talk video was available.

Now that I am retired, most of my side projects use SBCL, with a little Haskell and other languages. I have great respect for the commercial Franz and LispWorks products but for my projects SBCL works great.

I really enjoyed the history covered in his slides. I have lived through this history since 1982, but unfortunately almost 90% of my paid work has been in other languages. In our present time with great resources like Quicklisp, CL Cookbook, etc. I think that the CL ecosystem and number of deployed projects should be even greater.
Iridium orbits are ~780km (485 mi). Starlink lower tier orbits are ~340km (210 mi).
I answered Idk to all. After the first two, the pattern became clear and I felt like if I wrote a compiler myself, the answers could be very different.

I've worked on 16 bit C code, 32 and now 64 bit code. So I knew that the behavior was implementation and optimization dependent. :)

Ignorance is bliss in C.
My comment was in regards to the discipline of neuroscience as a whole, not parts of it.
Transformers often fail after a given 'long time', they are usually made out of many laminated plates glued together, and over time the glue will fail, plus they tend to vibrate at the mains frequency, which can shift things around over time and cause failure too.
I don't see false images when I use my mind's eye. My actual sight is not impacted by using my imagination to picture something in my head. There's nothing floating in midair or covering my vision. It's like recalling a memory. Can you not recall a memory of a past event?
Sure, but "I don't know" makes it seem like you're just saying "pass", which, when you finish the test, is obviously not what it represents.
In school, I was taught to choose the "best answer" on a test or quiz, and if you don't know something, choose the answer that looks right to you.

This test.. it reverses that entirely.
You underestimate the hunger. It's a new toy to play with for billions of people. Pretty much 3k satellites at 1TB/s each is equivalent of a bucket of water for a stadium full of people. And they plan to give this access for free. It will overload their network and realize they will need 3 million satellites instead, at least.
I kind of think BMW has generally lost its way. Their model line is bananas. They're great cars in some ways but damn the electronics are a pain in my ass! Like the battery registration--no reason why you can't add a menu that tells the computer "new battery installed" oh no, can't do that, have to have dealer-level software and equipment. I had to buy a code reader type tool for $150 that can do that instead of it just being a built-in feature. This is design for purely post sales profit margin enhancement.

Also, why do automakers keep taking the spare tires away? If you live near a city, well, great, but anyone who lives outside of "town" needs to be self-sufficient.

I appreciate a lot about the car, but its time is almost up. There are some screwy German things about it that just get more annoying as time goes by and lots of things broke before even 50K miles that never broke on Toyotas and Hondas I owned. BMW needs to go back to making cars, not computers on wheels.
Yep. I had to leave everything I had just gone through the store to pick out. I prefer Albert Heijn for their selection but shopped at Lidl cause they'd take my cards.
It's been pointed out that if these protests hadn't been used as an excuse for skipping school - that if they had generally been held on non-school days - then the turnouts would probably have been much smaller.
I’ve heard about fit and finish issues from multiple Model 3 owners. They all like the car, very few are impressed with the company.

I was utterly unimpressed on my Model 3 test drive. A $50,000 car should ride better. The driving experience was nothing special. The few tactile controls felt like cheap toy plastic.

I did like the UI, sort of. Put it on an overlay on the windshield in front of the driver and I think you have something close to the future. I liked the concept of the customizable, simple controls on the steering wheel — the execution is unpleasant.

And yeah, you can take off quickly and go quickly. So what?

Musk needs to sit in a mid-2000’s Volkswagen Passat for an hour or so.
One of the surprising things about the Panama Canal is how the sea level can differ between the Atlantic and Pacific sides. This depends not just on tides but on salinity, weather, and even differences in gravity. The Panama Canal has locks to lift and lower boats through the central lake, but even if the entire canal was built at mean sea level, it would still need locks to accommodate the (ever changing) difference between Atlantic and Pacific sea level at any given point in time.
Particularly writing it in C... It isn't a language well suited to be fully defined (see this very article for why), and no, Rust/Go aren't either. But Ada derivative or Haskell perhaps, there's some amazing tooling for safety critical systems and the languages themselves lend themselves to exposing side-effects.
Can someone share the cited research? Twitter appears to be blocking Tor these days - what a disappointment:

> 403 Forbidden: The server understood the request, but is refusing to fulfill it.
> Nobody is proposing arresting all 600 people straight away.

Even though no one is proposing such a thing, it's basically guaranteed multiple police forces will do just that.

I know that sounds ridiculous, because it is, but essentially every technology handed off to police forces gets misused in the worst way you can imagine. Not all the time, of course, but some of the time.

I really like the idea of tasers, but unfortunately the claims that they're used as torture devices have a lot of validity.
> ”Clojure has many interesting modern ideas, but I feel being so tied to Java and the JVM has hurt a bit in the long run.”

Would you expand on this? From my perspective, it actually opens up Clojure to a lot of opportunities where introducing, say, Common Lisp or Racket, would be a much harder lift. Clojure’s just a library, and immediately has available the entire Java ecosystem. Granted, it’s based only on my experience, but I’ve much more frequently seen first-class (provided by a vendor or otherwise officially sanctioned) Java libraries for services and other tooling than Common Lisp or Racket. Being able to take something like that off the shelf for integration is a big plus in my experience.
$60k to Learn to Code, and Why I Built a Leaderboard for AlgoDaily
Is it still being claimed that young Greta can "see" CO2 with her naked eyes?
Sine bar in action: https://www.youtube.com/watch?v=PO-Ab7YfBzY
Almost all you'll ever need to know about gauge blocks [1]. It's also a fairly decent introduction to the uncertainties of measurements, and other factors of taking measurements of objects. Of course it also includes a section on wringing. (and other sources on papers about the wringing phenomenon)

[1] https://www.nist.gov/sites/default/files/documents/calibrati...

Further more, if you're really interested in how modern precision engineering/industrial manufacturing came to be; I highly highly recommend you look into Foundations of Mechanical Accuracy by Moore. (it's a $150 book, pdf easily found by googling.)

(I'm a flatness/metrology nerd. I recently lapped three cast iron plates together just because I wanted to create as flat a surface as I could. Just because. )
Any time limit defeats the point. An electric car isn't just a car without gas, it's a climate-controlled room you can put anywhere.

As global temperatures rise, there are places becoming increasingly uncomfortable to live in. There may be cases where it's cheaper to wait out the hottest days in your car, instead of retrofitting a cooling system onto a building.
Would you consider the Soviet Burans in Kazakhstan ‘sitting in hangers’?

The design of those shuttles lacked the flaw that contributed to the Challenger tragedy.

So, what was the engineering reason for implementing a US design requiring o-rings?
oh god, don't even get me started about that, they even have the same texture as the other controls
Making Banking Programmatic
The idea of designs appearing identical sounds clever - but also simple enough that you can't possibly need a whole book to explain it.
I recall a work trip to a conference in Anaheim (California, US, right outside of LA but still in the metro area). It was my first real work trip and I was disappointed because I wasn't seeing very much of Anaheim outside of the more tourist-y stuff, as the area around the conference center/hotel was one giant tourist trap. So, I ended up at the local Target at around 9am, and I'm really glad I did, because I felt like I was seeing a more real part of the city than the rest of the time combined.
I failed on one, number 4. I bravely assumed 16 bit integers cannot exist. Can anyone name a concrete platform/compiler where int is/was 16 bit. Or is this just a theoretical option left open by the spec?
Universal Basic Income Can Work, and Here's How: Andrew Yang
I would pay good money for well thoughtout docs on all those protocols including HTTP, DNS, how they relate to mdns / avahi / bonjour and other modern implementations and differ as well as the IRC protocol. I would love to read RFCs front to back but I learn by talking with someone about tech or just seeing schematics / diagrams and pics and then lastly sheer experience.
Tied closely to this shift is probably the theory falling out of favor due to a lack of evidence. But I’m really enjoying it in Westworld, it’s just great to spend to reflecting on one’s own consciousness.
I emailed this to my boss telling him I got 0/5. He just setup a 1:1 meeting first thing Monday AM.
Applying the precautionary principal would mean only getting vaccinated for potentially life-changing viruses like polio, mumps, etc. and skipping vaccinations for the inconvenient viruses like flu/measles/chickenpox/etc. It's interesting that the popular opinion on vaccines is binary with anti-vax and all-vax, I haven't heard anyone outside of my dog's vet advocate getting as few vaccinations as possible.
where did you read that
Though it originates from oral traditions, the Iliad is literature. It is a work of wonder and triumph. Does this story appear to some people as just a list of enumerated events and nothing else?

If the Iliad is not the product of a whole mind then whatever created it is its equal in every regard.
AVR, so certain Arduinos. On an Arduino Uno, sizeof(int) returns 2.
You can see a similar effect with ordinary glass plates --- the production process[1] is such that it normally has a flat enough surface that two pieces will naturally "stick" together if placed upon each other and there's nothing else between.

[1] https://en.wikipedia.org/wiki/Float_glass
Fresh water literally falls from the sky unless you live in a desert. I question the value of exporting water from Greenland.
>7 hours a week at the gym? What and incredibly laid back lifestyle.

What a strange thing to pick at - is there a joke I'm missing? And it's not strictly the gym, it's 'gym/fitness'.
I don't know if that's how free time works once you have kids. "Parental duties" takes the free time. You get some time when the kids sleep.
it's ultimately and fundamentally a domain-specific scripting language

A domain-specific rather than general-purpose programming language? Most definitely. A scripting language? I would dispute that. Scripting languages are for automating the execution of sequences of tasks that you'd otherwise run independently.
There's an enormous difference between auditory hallucinations and visualization.

There's a gap in the language and between minds that makes it near impossible to understand and communicate about the actual experience of thought. There seem to be a lot of people mistaking these gaps for the presence of some unique disorder and calling it "aphantasia".
1/5.
I don’t know C.
4/5 I tricked myself into thinking I could figure out the last one....oops.
Most compilers for 8-bit and 16-bit CPUs, e.g. Z80 or 80286.
what would you consider to be the flattest off the shelf metal commodity component available today, would it be a typical hard drive platter or something else?
I have 1 free year left
Many C compilers that target 8-bit (sometimes 16-bit) machines. MOS 6502, Zilog Z80, and Motorola 6809. Modern examples include Intel 8051, AVR and PIC.
I wonder how burdensome it is to even get the tool fully integrated into the ehr. Like are the doctors not using it because it requires manual input of drugs and insurance? Even then, the doctors aren’t necessarily getting paid more for doing this extra work; it’s the payer (insurance) company that is primarily benefiting.

To be clear, I am acutely aware of just how hard it is to get this sort of thing working (MS in health Econ, phd in biomedical and clinical informatics). Just keeping track of all the formularies seems like a pain just to to begin with!
> What's it like inheriting a lisp code base, finding out its full of homemade macros like list comprehensions, and that they're not documented?

If such a macro is used in more than two places, it's generally a relief that the author did that instead of doing copy and paste by hand.

The author had some coding idea, and formalized it into a little robot that writes that idea, which has a name.

Even if that thing isn't accompanied by documentation, it can serve as a kind of documentation to what it's doing.

Code is going to be full of homemade functions that are not documented; whether they are functions that write code at compile time, or whether they are run-time functions, is kind of a minor concern.
Generated Columns in PostgreSQL 12
I quite liked that video. It was indeed worth watching.
I agree, but in terms of the theory, Jaynes spends some time at the start of his book explaining what he defines as consciousness, as it is only with that definition that the rest of the book makes sense.
The most famous example of this is sickle cell anaemia, which offers resistance against malaria.
My Learnings at Appier
You should join the army and fight for that.
Patches Carved into Developer Sigchains
I know it's not intentional, but when I scrolled down and saw "parental duties" at the bottom of the list I laughed and said to myself "that's not how this works!". Move that one to the top, above sleep even, when the kids are young.

Feature request for the calculator: if you say you have kids, it asks you what time they are in bed and asleep by and what time you try to go to bed: this window of time is now your chores/maintain relationship with spouse/gym/relax/hobbies/whatever time.
I wish we devised a way to make turbines out of fossil fuel. One word: plastics.

I hope that something comparable to concrete can be made out of polymers, glass / ceramics, and steel at a lower CO2 cost.
For Common Lisp, there's ABCL ( https://abcl.org ) which is a CL on the JVM and, otherwise, LispWorks bundles a nice Java FFI.

But, additionally, CL makes binding to C libraries really easy via CFFI and things like cl-autowrap ( https://github.com/rpav/cl-autowrap ) so, when there isn't a native lisp library, it's often easy enough to just use a C library in your program (or, I suppose, anything that can compile to something compatible with C like `extern C` in C++ and the equivalent constructs in Rust)
Then I'm inclined to believe this would have been a problem when building any canal across a considerably large landmass - such as the Suez Canal. Is it exclusive to the Panama Canal only?
There you go: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3415726
“I don’t know” is not the right answer. I do know. I know the answer to be “Unspecified”.
Turbo C on MS-DOS for one. In fact 16-bit int was the norm on that platform, because the architecture didn't have 32-bit general purpose registers.

In the C89 days, you'd use 'short' in aggregates (structs and array) for values you knew wouldn't exceed 16 bits so didn't want to potentially waste space; 'long' in situations where you knew 16 bits wouldn't be enough; and 'int' the rest of the time (where 16 bits was enough, and there weren't any storage benefits to outweigh the performance benefit of using the native word size).
There are a few problems with the questionnaire. "I don't know" is pretty generic choice to be given/choosen.

Say for example, in question 5, the statement "return i++ + ++i;" is undefined, because the value of i is read and modified twice in a single sequence point (and of course, the order of addition is unspecified), which is not allowed in C. So the answer is "Undefined." (The explanation given in the page not accurate enough in terms of C)

And for question 1, the code is valid, but the result is not strictly defined. It depends on the implementation. So the answer is "Implementation defined."

The usage of "main()" hurts me, the strictly conforming way is to write it as "int main(void)" (or similar)

I feel like the questionnaire piss off people who really knows C.
My first thought was MSDOS/Turbo C, and I found this page when looking for confirmation: http://synfare.com/599N105E/hwdocs/sizes.html
Biocarbon Engineering's Drones Plant Trees by Dropping Germinated Seed Pods
How does this compare in terms of Muscle Memory https://en.wikipedia.org/wiki/Muscle_memory
and instinct reactions, things we do from inputs without thinking about at the time of doing. People tend to react if you shout "Timber" near tree's, and rightly so. They react first and think after they have already started reacting.

Is Bicameralism just another way of trying to define primal instinct and how that gave way to intelligent thinking as the main driver in the human evolution I wonder.
There is a minor error in the explanation for the third one: the minimum allowed value for CHAR_BIT in C is 8 (it does not affect the result, principally because the value of ' ' could be anything in the range of char).
> But Ada derivative or Haskell perhaps

Ada, maybe? I don't know enough about it to comment. You definitely don't want to use Haskell for that sort of work load, though, at least not directly. Laziness-by-default is precisely the sort of hard-to-reason-about logic you don't want in that sort of application.

That said, if I I had no alternative but to try and tackle this problem, I would seriously consider a strategy where I would write a Haskell program that would generate the actual program (potentially in ASM directly) for me.
The Pi people are good folk - all that is needed is to run the USB 3 conformance tests and report back the results (both as USB PD sink and source). Better to know the knowns than have a enthusiastic fan base find them and we get into discussions like this!

I'd also recommend they put up a compatibility table of power supplies on their website in time - probably cables as well! Its a good opportunity to collaborate with the Google engineer who has been spending his non-core hours on the USB-C madness.
I tried to be realistic but it comes out as -7.5. I must be lying about sleep.
They could just charge extra for the “last ms”. So add a ms of latency for the standard plan, and remove it for the HFT plan.
It's not true. LEO systems are far more CAPEX intensive than GEO, and neither Starlink, Oneweb, Telesat, or Kuiper will be cheaper than Viasat-3 and will not be able to compete in terms of cost per Gbps.
What makes China "the enemy"?
So does AVR's (ex?) competitor, PIC8. This comes from the documentation of Microchip's C18 compiler. https://i.stack.imgur.com/1uV3l.jpg
5/5, but I don't think this test is very good at capturing the more obscure features of C, they all just deal with the fact that platforms have different datatypes/alignment requirements, except for the last one. I think a better example would be the following:

int a=1, b=2, i, j;
i = a += 2, a + b;
j = (a += 2, a + b);

Whats the value of a, b, i, j? Hint: i and j are different.

Which begs the question, why does C have those features in the first place? The only C code where it's reasonably common seems to be in crypto algorithms.
This is interesting, thanks. I just got a Macbook Pro with the new keyboards and I'm really liking the lighter force and travel of the new keyboard. It just feels easier to type on. As I've gone back and forth with my 2012 Macbook Air (transfering data and settings), the 2012 keyboard has begun to feel mushy and deep.

That said, the new keyboard is much louder than the old one. Even light presses produce a loud "click" type noise that the older keyboards did not.
I put 40 for a 2 year old. About 3-4 hours after work each day and full days on weekends.
Umm... you do know the Buran only launched once with no humans aboard before being scrapped?

I’m pretty sure there were plenty of flaws that would have shown up if Buran had flown 100+ real orbital missions.
Specially now that the satellites have no crosslinks.
From the article:

"Biocarbon Engineering also wants to help people in the community continue to get higher-paid, more technical jobs. “We train local people to be drone pilots,” says Fedorenko. “And they want that. They want to be in IT. They want to process data, they want to fly drones, they want to do agroforestry, they want to do regenerative agriculture, they want to create vertical farms . . . they want to do all this cool stuff. It’s not the ambition to be a seedling planter for $1 a day.”

The trees can also earn revenue through carbon credits. Worldview International Foundation’s work has been validated so that it can sell carbon offsets to companies; that money comes back to the community and keeps the work going. Biocarbon Engineering is now talking with brands that want to sponsor tree planting, so that when consumers make a purchase, a tree is planted. The drones could share data about specific trees with consumers. “We can literally see every single tree and the leaves on the tree if we need to,” she says. “It opens up this new market for people to see the connection with trees and to say, ‘Wow, this is my tree. I planted that.'”
All GrubHub had to do to make this totally acceptable to all is have the restaurant owners explicitly opt-in before creating a microsite.