skysight-inc/HackerNews huggingface dataset:
Agreed. However, adding a single CAN bus ADC to the fuse PCB (to sense no voltage on circuits with a blown fuse) would cost almost nothing, and would allow the computer to provide information on the blown fuse and instructions on how to replace it. IMHO, breakers = expensive needless feature creep, but user feedback = welcome to 2015.

EDIT: I was thinking of the 12V accessory fuses. In light of the reply from Tesla, I can imagine where if the drivetrain fuse blew you might not want an average user replacing it ... and I imagine that for something like that, it probably already throws a code that gives you an idea of what's wrong.
I was in aw...
Someone at tesla answered the question:

Marc Rogers[0] Woz - Kristin[1] cant post to your thread but here is her answer:

So there’s a few things at play here. For context, I run the Product Security team at Tesla and I’m safety-trained on the HV systems - I’m also working hands-on with a small drive inverter on a hobby project right now.

First and foremost, our large drive unit pulls about 1000A at full load, and switching that with silicon is tough. We use a bank of custom IGBTs on each of the high/low sides of each of the 3 rotor phases in order to handle the power, and that’s with active fluid cooling. You can switch that much current with silicon but it ain’t cheap, and you’ll need either active cooling or a bunch of thermal mass if you want the thing to switch more than once. http://www.teslamotorsclub.com/attachment.php... is a decent pic, the object on the left is a single-phase switch, you can see 6x transistors laying flat at the front for one side of the phase (the other bank is behind).

Secondly, Model S is an AC induction motor so the current through the winding ramps up more-or-less linearly over time until the phase switches off (or changes direction). You’re at high power but you’re not switching the load at zero-crossing as you would in a resonant load such as a Tesla coil, instead you have to switch at an increasing current depending on how much power you want to the wheels. You now don’t just have to switch a lot of power, you have to switch it FAST so that the resistive losses in the FETs don’t blow out the power channel due to ohmic losses. Your switch is now not just big and bulky, it’s complicated (since you need an additional HV supply) and pretty sensitive to things like stray capacitances. On the previous pic the big black brick on top of the PCB is the capacitor that dumps into the IGBT gates to make them switch fast enough.

Finally, I believe there’s a regulatory issue. I think I’m right in saying that automotive standards around the world require that all electrical systems are fused, and considering that there’s multiple separate power rails it’s not inconceivable that an event could take place that leaves the HV drive rail powered on but kills the 12V accessory rail that powers a lot of the CAN systems. You could end up disabling your active fuse while the HV system is still energized, and considering the amperage our lithium packs can deliver (P85D draws up to 1.5kA) that’s not going to end well.

Woz: I would LOVE to put you under a Tesla NDA and then give you a _real_ tour of the vehicle - ping me at kpaget@teslamotors.com if you’re interested. I’m curious, do you still have one of my RFID cloners on your shelf somewhere? [2]

[0]https://www.facebook.com/marcrogers?fref=ufi

[1] https://www.facebook.com/kristin.paget

[2]https://www.facebook.com/stevewoz/posts/10153145090701282?co...
Good work, would be great if both partners could submit their answers online separately, which then generates a page where they can compare the results together.
The response from Kristin Paget at Tesla:

"So there’s a few things at play here. For context, I run the Product Security team at Tesla and I’m safety-trained on the HV systems - I’m also working hands-on with a small drive inverter on a hobby project right now.

First and foremost, our large drive unit pulls about 1000A at full load, and switching that with silicon is tough. We use a bank of custom IGBTs on each of the high/low sides of each of the 3 rotor phases in order to handle the power, and that’s with active fluid cooling. You can switch that much current with silicon but it ain’t cheap, and you’ll need either active cooling or a bunch of thermal mass if you want the thing to switch more than once. http://www.teslamotorsclub.com/attachment.php... is a decent pic, the object on the left is a single-phase switch, you can see 6x transistors laying flat at the front for one side of the phase (the other bank is behind).

Secondly, Model S is an AC induction motor so the current through the winding ramps up more-or-less linearly over time until the phase switches off (or changes direction). You’re at high power but you’re not switching the load at zero-crossing as you would in a resonant load such as a Tesla coil, instead you have to switch at an increasing current depending on how much power you want to the wheels. You now don’t just have to switch a lot of power, you have to switch it FAST so that the resistive losses in the FETs don’t blow out the power channel due to ohmic losses. Your switch is now not just big and bulky, it’s complicated (since you need an additional HV supply) and pretty sensitive to things like stray capacitances. On the previous pic the big black brick on top of the PCB is the capacitor that dumps into the IGBT gates to make them switch fast enough.

Finally, I believe there’s a regulatory issue. I think I’m right in saying that automotive standards around the world require that all electrical systems are fused, and considering that there’s multiple separate power rails it’s not inconceivable that an event could take place that leaves the HV drive rail powered on but kills the 12V accessory rail that powers a lot of the CAN systems. You could end up disabling your active fuse while the HV system is still energized, and considering the amperage our lithium packs can deliver (P85D draws up to 1.5kA) that’s not going to end well.

Woz: I would LOVE to put you under a Tesla NDA and then give you a _real_ tour of the vehicle - ping me at kpaget@teslamotors.com if you’re interested. I’m curious, do you still have one of my RFID cloners on your shelf somewhere?"
No user ever needs to be unable to arrange for maintenance of the software they rely on. That only benefits some developers by holding their customers captive.
In a way what he is proposing is already used for some systems of a car, although far from everything and mostly for lower currents. Some ecus are capable of delivering enough power from their own I/O pins to drive other components, if any of these outputs are shorted the ecu can detect this, power off the output and enter appropriate failure mode(diagnostics code + disable other functions). When the short is gone it will automatically activate again if considered safe.
The point is for folks to do it in person -- as an in person game. I figured people could fire up an iphone while at dinner and play. But would be cool to be able to invite your partner for an online only version.

Perhaps I could have people chose to play online or play in person.
Well, amateur experimental aircraft have something like this available: http://verticalpower.com/ - but there's a lot of negative reactions to this kind of technology, because it introduces new failure modes where none previously existed before.

But I think something that people forget is that generally, fuses are there to protect wiring and fixtures (switches, connectors, etc) from fire. Preventing the device on the circuit that you, the user, cares about from completely melting down is just a nice bonus.

That's why building wiring codes generally spec fuses to cope with the capacity handled by wiring and switches, rather than the loads attached to it.

EDIT: In any case you NEVER want the car to silently and automatically try to "re-set" a tripped breaker, surely. You want this kind of fault to present itself noisily and obviously; it's a precursor to a potentially dangerous condition.

Any automatic re-set will have to factor in some cool-down time for the wiring in between attempts... what is the temperature of an overheating pair of conductors in the wiring loom when the breaker tripped? What rate of heat dissipation is there allowing them to cool down again? A wire which has experienced overheating will have a different (higher) resistance after the short-circuit event. Even if the wire isn't permenantly damaged, the temporary increase in temperature will still guarantee a momentarily higher resistance. Will the wire still have low enough resistance to trip the breaker again when the short is applied again?
Blown fuses are one of the rarer issues that car owners face, so it likely is a cost/benefit thing - putting an engineer on that project just isn't worth the time and cost of implementing the idea vs say working on improving battery efficiency. (especially from a marketing perspective)
On the other hand, measuring email opens is far from perfect - the user can have images off - and you could unsubscribe users who are actually reading your stuff.
Prolog never delivered on the promise of declarative programming, because its rigid, unintelligent depth-first search strategy makes it necessary to understand the execution model and keep it in mind when writing programs. So it's only mostly declarative. Prolog achieved some popularity because there are times when brute-force depth-first search is all you need, particularly if it can be done very fast; but once you bump against the limitations of that paradigm, Prolog is of little help.

True declarative programming is still an open research problem.
that's how I consumed it. Bray's accents and intonations really were impressive, considering he was able to make a cast of a dozen or so people all have a unique and easily recognized voice.
Quickly looked over it. Needs spellcheck.
Every Villain Is Lime: https://www.pinterest.com/pin/414471971929206671/
Well, even planes use CB today instead of fuses (and remote CBs on top of that, meaning they can be turned on/off electronically)

I think WOZ is suggesting an active current control that, while doable, is probably too risky (and you really don't want to blow the expensive parts)
I think woz is perhaps staring at a big bank of 3, 5, 10 and 20A fuses though. As mentioned in my other comment, experimental aircraft have a few different instrumented electronic circuit breaker solutions such as http://verticalpower.com/ which can integrate with the cockpit EFIS.
I didn't find it painful at all too. Neither did these guys - http://www.audiotool.com
I remember reading about positive conceptualisation techniques in Men are from Mars, Women are from Venus. This is nothing particularly special. What if you spent 90 minutes detailing one another's flaws? You'd come away with a similarly inaccurate negative impression of your partner.
Yeah, definitely keep how it currently works but the ability to do it separately too would be neat.
You're missing the point - this is something that is done on a date as a sorta really long icebreaker that tells you right away if this person is someone you could spend a lot of time with, this replaces those awkward first date questions because neither one of you has to think them up, they're someone else's and you're just "following the rules" but at the same time they're a fun thing to do.
I don't think the issue is just allowing proprietary IDEs to interface with Gcc; I think there are deeper issues at play.

Also, I wouldn't say that he's forcing anyone to chop things, he's more likely saying "let's make dishes from recipes which don't require chopping things", but his cooks are still used to chopping. Is there really an alternative to strong "intellisense" and refactoring abilities in IDEs for efficient development ? I don't know. I personally feels that this is a necessary step. Maybe RMS, with his experience of AI research (iirc), has a different view.
I think because many NLP parsing problems can be solved by dynamic programing approaches that logic programs can easily express and optimize for

Another reason is that you can directly express unification grammars in Prolog e.g., see definite clause grammar:

https://en.wikipedia.org/wiki/Definite_clause_grammar

During my PhD I worked on a parser/generator for Dutch at the University of Groningen, which is written in a mix of Prolog, C, and C++:

http://www.let.rug.nl/vannoord/alp/Alpino/
I think he is just made the wrong move of mixing business with monkey business. It's better to be a professor and work at a car wash I think just like what Walter White did in Breaking Bad.
In some ways he seems an opposite of Joshua Norton
https://en.wikipedia.org/wiki/Emperor_Norton
- speculator, philosopher, eccentric character.
It's possible I'm mildly dyslexic as my spelling is terrible. Thanks for the reminder I need extra eyes to get this production ready.. Also, been grinding all day. Thanks for checking it out!
I think your essay will end up being an interesting read. Not to derail things much but perhaps the ethos is not so much from the place but from the parents. In my experience new parents who care about education, if they can afford it will move into an area with good schools perpetuating this virtue. Of course there are some parents who have a lot of money and stay in locales with poor schools but then send their kids to private schools. I know it seems like one in the same thing but its not. Parent mentality and culture have a huge influence on how education is perceived. Some kifs I grew up with --middle class I'd say, saw school as something in the way of their fun. It was a burden to some extent. But there were a few who saw it as a necessity down the road to an imagined future of success. So parent influence and involvement is key. Some parents think its the school's responsibility --no they are there to supplement parental influence but they very well can't supplant it. You see this in kids who despite parents talking down school seek to do well because they see what their parents don't see or despite parents jealousy, etc.

Regarding the reporter's sincerity about caring, it's hard to tell, it could be just getting brownie points on a topical issue or they may really care. However if they actually really cared and wanted to make a difference doing it from TC does not inspire too much credibility. Typically people who really care move closer to the issue (meaning working on the issue constantly. If I cared about feral cats then I'd be involved directly with doing something about feral cats -- otherwise it's just a nice opinion.
oops, sorry, downvote brigade. :)
Article about this here..

http://torrentfreak.com/chilling-effects-dmca-archive-censor...
I have seen pretty many doing that. However, don't except a work like in a stable, salary-based job, with a little risk. More like shorter freelancer gigs, maybe some small software products/apps/websites which generate some passive income along the side, etc.

Also I wouldn't say that you can travel just to have fun, you also have to get the work done. That means settling for some place longer than you would recreationally. I have met these guys in coworking places, for example.
I don't think Io's feature make it necessarily slower than, say, Self, and that could be quite fast (the methods-can-be-macros should be statically manageable, I believe) .
Interesting site, but it took a little effort to view. When visiting the site via Firefox and Adblock Plus, the site renders as just an empty page.
I'd be curious to know what's not there.

What's wrong with the Web Audio ScriptProcessor node for example?
I agree with louthy on some points. But before you started your project, I am sure you had a plan. so you may want to start assessing your plan to see where the error is before you start typing. But they're right too, you have to start somewhere.	8860624
You have no idea.

One of my favourite 70's quotes is from the quite brilliant book "The Medieval Machine" by the Anglo-French historian Jean Gimpel, published in 1976 (which really is a very good history of Medieval technology):

"The economic depression that struck Europe in the fourteenth century was followed ultimately by economic and technological recovery. But the depression we have moved into will have no end. We can anticipate centuries of decline and exhaustion. There will be no further industrial revolution in the cycles of our Western civilization."

These words were written at the same time as Jobs, Wozniak, Gates and Allen were all hard at work. This smug bastard was just one voice amongst many telling the world that we were in the grip of a permanent, inexorable "malaise" that could at best be accepted passively, which there was no point in fighting, which had to be simply taken as given, unstoppable, forever.

At the same time people like me were being told by teachers that we would never be able to image the disk of extra-solar stars or discover extra-solar planets, and so on [1]. Gleeful murderers of hope were desperately trying to crush any spark of innovation, creativity or freedom. And it was happening the world over. A relentless, ruthless, assault on the Enlightenment, the rule of law, and the industrial revolution.

They failed.

A lot of it was funded, ultimately, by the Soviets, who generated an enormous amount of propaganda that was intended to make people believe these things. One of the notable things that happened after the collapse of the Soviet Empire was the stunning pall of silence that fell over the Left in the West. It was almost as if the lifeblood of the whole enterprise had been cut off.

Part of that was simple empiricism: it was hard for Leftists to hold up their pathologically insane ideas as "better" when their poster-child had just endured a complete and spectacular collapse, including the freeing of a large number of vassal states, all because some shipyard workers in Poland had laid down tools a decade before.

But part of it was also that funding for a bunch of stuff that Comintern paid for (mostly by indirect means, in the same way the US government funds stuff through NGOs today) vanished.

Today, hyper-capitalist brands like Naomi Klein are attempting to resurrect some of the old zombie Soviet ideas, but it's a pretty pathetic effort, full of contradictions and gibberish. They won't have a lot of influence, at the end of the day, and it is my firm belief that we are entering into a century of progress that will make the 19th century look staid and the 20th century look stupid. Having lived through the '70's, this is a good thing to see.

[1] We have done both, and more: http://www.nasa.gov/content/goddard/astronomers-image-lowest...
What's the problem? The Web Audio API is being implemented by IE and is already in FF, Chrome, and Safari (both OSX and iOS). Is there something missing from it?
It seems to me these choreographies are of theoretical interest, but in practice it would be hard to get a real choreography like those between planets

(Especially because of mass differences and the exact speeds they need to form those)

Which doesn't mean they might not form a different choreography
To play the advocate, given that by default compilation produces a binary that includes over 2KB of Lovecraft quotes¹, this article at least serves to reassure people that you can produce a compact binary with Rust.

¹ https://github.com/rust-lang/rust/issues/13871
Stem cell of MS, Gene therapy for hearing loss? What else is new? And if he safe levels are lower than what they thought, would you want to be their guinea pig?
We are moving the Roslyn code to GitHub
I'm thinking of including an easter egg that unlocks a slide saying "Kiss each other" after the eye gazing ;)
3D printing is one of the trends of 2014. And I think it is gaining more exposure and more audience. It could become a potentially growing market
This is fabulous! I had heard there were figure-8 stable 3-body configurations but had never modeled one. Just sketch a figure-8 as the starting orbit and you'll see immediately how it works. Really beautiful work!
It has been posted several times before.
If you liked this article, you might like the movie Dreams of a City, which talks about the creation of East Palo Alto: http://vimeo.com/23458988

EPA's has a really interesting history, back in the 1920s an entrepreneur by the name of Charles Weeks started a Poultry Colony, preaching "one acre and independence".
(http://www.paloaltoonline.com/print/story/2008/04/16/one-acr... , http://www.santaclararesearch.net/SCBIOS/cweeks.html)
- you can still see the remnants of this in the structure of the lots along Runnymede street. http://epawiki.pbworks.com/f/Remnants+of+a+Failed+Utopia.pdf
Why not reverse the argument? If llvm can already be used for that sort of task, why not simply use it in place of Gcc for that very precise task? I'm pretty sure RMS would not mind it as much as opening gcc's AST, and he would certainly embrace the idea of making Gcc able to match llvm feature wise to make sure that whatever becomes possible in emacs is handled at compilation by Gcc.
4 things you can obtained by knowing the CPI and SPI
I have no plans of leasing a car but I had plans of buying one. Still I had doubts. This articles somehow helped me through that huge decision. Great job with putting things into perspective for me.
Add the space so it shows up in the Show HN tab.
Average speed cameras are used in a number of countries, though I'm not sure about the U.S.

They are useful for catching speeders in a relatively short stretch of highway, but useless for medium-to-long stretches. Even if you constantly drive at 20km/h over the limit, the average can easily dip below the limit if you stop at a service station for a few minutes or if there's heavy traffic at some point. And if the highway in question doesn't have toll booths, the police will have to install a bunch of expensive cameras at every single interchange.
An Introductory 4.4BSD Interprocess Communication Tutorial [pdf]
Someone please make these bike parking structures [1] and put them everywhere. I would gladly pay to park my bike in one of these knowing it's secure, and not having to carry a heavy lock around everywhere.

also, please improve upon the design [2]

https://www.bicibox.cat/default.aspx [1]

http://www.lavanguardia.mobi/slowdevice/local/20120802/54332... [2]
Ah yes, my favorite call-to-action.
It doesn't have to be like that. I suggested elsewhere in that thread that emacs maintainers should use llvm for what they need, since it can already provide that service. This would require further down the road to have Gcc match llvm feature-wise (except maybe that feature), so that compilation of code accepted by llvm would be possible with Gcc.
Why in the world are people downvoting this? I'm normally happy to take my lumps, but I don't even see the problem here.
> North Korea is basically a monarchist personality cult rather than anything resembling the Soviet Union.

Unlike the Soviet Union, where no personality cult of Stalin and Lenin existed. </sarcasm>

North Korea is as good an example of a totalitarian dictatorship as any Communist country (including my own).
Is the premise really that just the exercise alone produces the result? Wouldn't two people who were totally repulsed by each other's answers not fall in love? What about people who were just lukewarm towards each other's answers?

If that's the case, how does this idea allude to anything other than the concept that two people who generally get along with each other, and were already predisposed to liking each other in the first place, would develop feelings for each other after spending a few hours conversing and learning about each other?
I appreciate this for the same reason I appreciate metasploit.
I read it as more so that Chinese and Indians are overrepresented by population in tech sector jobs. So while they are culturally minorities, in the workforce that might not be the case.
This book is under 100 pages. Awesome! This is what I was looking for. :)
I like the "grab a partner" as if it doesn't matter who.