skysight-inc/HackerNews huggingface dataset:
Correct. HVDC is significantly more efficient than AC transmission. The problem before modern power semiconductors was always that converting voltages levels was difficult. The Pacific DC Intertie had to use huge Mercury Vapor Rectifier TUBES.

Talking about the Pacific DC Intertie on Wikipedia:
https://en.wikipedia.org/wiki/Pacific_DC_Intertie

> Even for a frequency as low as 60 Hz the skin depth is less than the 1.6" radius of the conductor used for the Intertie. Hence the effective resistance is greater with AC than DC, so that more power is lost to heat. A DC line is also ideal for connecting together two AC systems that are not synchronized with each other. Also, cascading blackouts are less likely.

Interesting point that this was the longest HVDC transmission in the world until the Three Gorges Dam projects.
Agreed, but at the scale they're talking about, trying to rank competent people out of the tens of thousands being let go... you're gonna need a lot of Bobs ;)
For most people, it's extremely risky to treat a severance package as a vacation. You should typically start looking for your next job immediately and with considerable haste and seriousness.

A gap of unemployment on your resume, for any reason, is going to hurt 90% of job seekers.
I think that he is a little unfair in the "Roofs and cubic buildings" category. Most of those are for real estate companies, and they have some variation. As long as a competitor doesn't have a very similar logo, these are very good for real estate companies.
Satisfaction is a great font though.
What happened to IBM?
Mobile wallets are definitely going to become more popular as a day by day tool. With Coin startup and bit coins, digital currency is on the rise.
TLDR: "heavily below expectations" -- Telegraph

Live blog commentary: http://www.telegraph.co.uk/technology/apple/10983304/Apple-r...
Motors would almost certainly still be AC. They are way more efficient, cheaper to build and require almost no maintaince. DC motors do not have those same characteristics.

But they'd probably run on a higter voltage and frequency.
It COULD but they're entering a very competitive space. Profits are almost non-existent thanks to Microsoft and Google's race to the bottom.

I don't feel like Amazon did a good job selling their USP. I still don't know why I should buy it over the alternatives...
The hardest part is not running out of fuel on the way down. Old-school science fiction often assumed something like nuclear power where that wouldn't be a concern. Seems like for many years most people haven't even attempted this full recovery/landing thing because of fuel and weight issues.

Has SpaceX really cracked that problem? What portion of flights on this smaller rocket can do it? It says some missions won't have enough fuel left over.

Will the Falcon 9 Heavy be able to do all or almost all missions with a landing and full recovery at the end? How much fuel will Heavy have left on average after a return? Theoretically it would not wait until the last possible second to start slowing, and therefore use up almost all of the fuel in order to give the descent a larger margin of error and also reduce the possibility of damage, I assume.
Hi Fiddian here director of Soda, creators of Sodaplay. Thanks for your kind words about Sodaplay. We developed iOS and HTML5 prototypes of Sodaconstructor a while ago which work nicely. It is however a significant amount of work creating a new backend to support the million or so models we have in the database and porting the other tools like Moovl. We are planning to do a Kickstarter to raise funds for the dev work, but need to clean our database of 250,000 registered users' emails which costs money otherwise we'll be instantly blocked as spammers. I very much hope to have the Kickstarter online, bring Sodaplay up to date and reinstate a lot of the version 1 features people liked e.g the zoo!
Bypass t.co, go straight to real links on Twitter
That's not at all true. They beat earnings. It's the forward looking guidance that looks concerning, but it's a faux number because Apple has talked a lot about their product pipeline but the forward guidance doesn't include any new products.
People generally misinterpret the role of a logo.

It's purpose is not to be unique but to be rememberable.

That's all that really matters (and of course not offending people)
Minor voltage drops can still be a problem for optimal tracking on MPPT charge controllers.
A server can easily add an extra random wait to all unauthorized responses, making such attacks almost infeasible (at least for web-app case).
WebGL is pretty far from VRML. VRML was doomed from the onset. 20 years later 3D does not have an generally agreed-upon standard markup. (Collada is a de-facto common editor format because of the lack of competition. Not because anyone likes it. And, it's explicitly not a content delivery format.)

WebGL is an implementation layer for creating your own content delivery system in the same way that OpenGL is for desktop apps. OpenGL's approach has worked in practice for over 20 years.

WebGL has done a good job of maintaining parity with iPads. As in, you can expect top-of-the-line iPad games to run at parity on decent PCs with decent WebGL implementations.
China plans super collider
Very surprised not to see the hexagon. I thought that I was being original when creating a hexagon logo, but took a look around and realized that I chose the shape because it was familiar.
I think it just meant that because it was wholly immersed in water, it's not worth refurbishing.
It was definitely below street expectations for revenue, and number of units sold.
Tim even admits this on the call:"iPad sales met our expectations," Cook says, "but we realise they didn't meet many of yours."

So they beat EPS, but they were below estimates on shipping both iphones and ipads.
It's only because they increased margins that they beat EPS.
No, it wasn't clouds - it passed through a chemtrail.
So would this be a startup or a non-profit org? The problem this project is trying to solve is bigger that you or me or any small group of people in an org, not in the technical ability per-say, but along the lines of "absolute power corrupts absolutely". If a single person or entity is the primary creator, what are your thoughts on, how to remain true to the original vision of a truly distributed, participatory network? The linux model perhaps?
You just fly back to the launch area. It's immanently feasible to fly that route and always have a buffer of assurance that the rocket's trajectory will not head towards populated areas. If, for whatever reason, that changes then they press a button, the rocket zips apart and falls in pieces into the Atlantic ocean.

As for cost, fuel is cheap, it's one of the cheapest things in the whole operation. Think about the fact that every commercial airliner has the capability to make an unpowered landing and to save fuel doing so, why don't they? Because operational complexity adds cost much more than using up fuel does. By the same token, the greatest costs in orbital launch come from throwing away the hardware after every flight and operational complexity. If using extra fuel enables them to more easily reuse the stages and get more launches out of them as well as reduce overall operational complexity, then it makes economic sense.
That's often a problem with what's sometimes called "constructive" PCG, i.e. manually writing an algorithm that generates variations of content. It's somewhat hard to craft an algorithm that produces a ton of variations that don't look trivially like variations, at least without a lot of careful tweaking.

> I'd be really interested in learning about any work in the "interestingness" of procedural content.

Some of the AI research on PCG goes in that direction. Instead of writing a constructive algorithm, you instead try to specify what content you want in some formal way, and then use a solver to generate content meeting the description (a genetic algorithm, constraint solver, etc.). I.e. start from the goal rather than from the algorithm. It is still difficult to quantify "interesting content" though! Instead it usually needs to be something more specific, like "a level with the following properties: A, B, C". As a shameless plug, two colleagues and I are working on a book that surveys the current research: http://www.pcgbook.com
It also "scales down" the universe and the time/thrust needed to leave orbit. still a fantastic educational resource!
How easy is it for hackers to be able to take control of your phones camera or speakers?
With a truly cheap reusable system, it may finally make sense to send more smaller payloads and assemble in orbit.
Decoding (encrypted) MySQL traffic with Wireshark
BBC Online Outage on Saturday 19th July 2014
The bottleneck is in materials. We don't know how to recude the size of inductors or capacitors at will.

That said, at 50W/in^3 heat dissipation may also become an issue.
Dr. Skynet will see you now by: Max Levchin
Heh, on the conference call, someone asked them why they beat their gross margin guidance for the 3rd quarter in a row, when these are supposed to be realistic numbers now.
Possibly a google search for visually similar images.
Ok, quick summary:

I think the bottom line of this chat is that making money with open source software is hard. Either:

- you are facebook or google and don't care about the direct revenue from the software, but its indirect revenue. In this case, you clearly need to be a giant to get these types of strategic leverage advantages

- you make money from "support" which is not scalable as a software business

- you build something that is yours only and which you can monetize.

The idea that they had to push MySQL's advanced features for free because "we must show we are committed to OSS" was strange. I think they could have (from my armchair point of view) given away some basic version and then a for-pay set of capabilities (I don't know: clustering, security, performance, etc).

I think the comment that they were valued at $1B and "nobody wants to buy Postgress") was odd. But on the other hand MySQL did have the convergence of good marketing, good technology, good sales, good leaders, etc.

What is there for a small entity trying to make money in OSS? Assuming you don't want to be in a support business, then it is some form of "closed software."

One important insight was how branding can be an advantage. This is, "this can be open source, but you cannot use my brand." For example Red Hat. Again, also relevant only when you achieve a certain size.
I don't disagree with that but that makes "nobody wants this" even less likely, they have to know about it first.
I have no idea what you're talking about. I see only two posts suggesting anything close to solutions. One of those posts named an existing product with a probable misunderstanding of the details of the requirements. The other post said that we should avoid AC and not need an inverter. Neither said they had a plan that could win the competition.

I don't see a single post that fits your description. Am I looking in the wrong spot? Are you being baselessly condescending?
Hardly, I think most people are responding negatively to the fact that their Q4 projections look exactly like what they did in Q4 of last year (http://www.apple.com/pr/library/2013/10/28Apple-Reports-Four...), so staying flat during the holiday / back-to-school season year over year probably got some people worried that the magic is fading. They did payback nearly 50 cents a share in dividends, so its not all crazy times.

Edit: Oh, and that ipad number I missed that the first time, they could really use something magical there.
Reminds me of the Yahoo of the early 00's that wanted to be everything for everyone.

If you think about it, the two companies with the largest amounts of credit card #s on file would likely be Amazon, for obvious reasons, and Apple, because of iTunes.

Because using their payment platforms wouldn't involve the friction of having to add that info, those two stand to gain traction very quickly if they enter the space. Apple is rumored to be working on this, and so it's a no brainer for Amazon to do the same. My guess is that Amazon is waiting to see whether iBeacon or NFC end up winning before adding payments to the app.
A good logo is the least of your problems. A property company? go with a set of roofs over your name, a car company? Choose a swishy logo. Make sure your company name is clear and readable and get on with the hundred other things you need to produce million dollar turnover.

Once your company is employing a hundred people, turning over 8 figures then you can afford a rebranding exercise. Before that it's so much procrastination and mental wank.

You live and breathe your company's essence - if that's not what you want, try therapy not logos.

However, it must have taken some time to gather that and is an impressive overview. More power to them.
That is incorrect. You can cover the screen with a single triangle ... just make it big enough. The corners get clipped and the middle region of the big triangle will cover the screen.
Great Barber Video
Maybe what I meant was some kind of a way to do this without provoking a confrontation.

Perhaps that's just the nature of the beast, though.
Visit your local state capital, Washington DC, the executive offices of Fortune 1000 companies, etc. What do you see? Who has power in our society?

> Men are much more likely to be wrongfully accused of incest or sexual offending children.

I would be very surprised if this compares to the incidence of sexual assault. Also, men are much more likely to sexually assault women (and children), so perhaps the false accusations are proportional.

EDIT: Added last sentence of first paragraph.
I think this is very helpful to keep in mind... consumers pushing their demands to producers... and eliminating waste and inefficiency.

http://en.wikipedia.org/wiki/Lean_manufacturing
I did see a launch north over my town, about 80 miles north of Vandenberg. It looked like the path was over the ocean all the way. The first stage was still burning, so it was pretty spectacular.

Edit: oops. This was supposed to be a reply to the comment below about launches from Vandenberg being mostly to the south.
Is definitely good educationally, but I wouldn't use it to argue against the plans of people who build rockets for a living any more than I would use experience of playing Risk to lecture an Admiral on international warfare.
I have also created a site designed to help people find smaller scale Github projects. You can find it here : http://gilles-leblanc.github.io/dispatcher/
I think it would be better if it's something international.
Probably no video from the earth.

We won't be getting it for awhile. But I think maybe in about a year or 2 we will get to see the video.
Brazil has some laws quite similar to that. And certainly another entire set of problems our governemnt would put over the winner if he lived here.
Until now most information out of SpaceX has suggested it needs roughly 30% propellant left in the first stage of Falcon 9 to attempt a retrieval.

Numbers are not yet known for the 2nd stage retrieval or Falcon Heavy. One could probably assume a similar number for the first stage but possibly a bit less given the Falcon Heavy's higher thrust/weight ratio.
They probably made them all, for $5 each.
> What is your Amazon.com password?

If this were Reddit, this is the point where I would attach a hilarious GIF of some animal running away with the text "NOPE" all over it.
Getting laid off after 15 years at a large tech company is a very scary notion. For aspiring developers, here are some encouraging thoughts:

Pay is currently sufficiently high that you could, with a sufficiently frugal lifestyle and prudent investment habits, go from zero to millionaire in that time period. Being a millionaire isn't what it used to be, but that would provide one hell of a buffer should you find yourself laid off after 15 years.

Think of it like this. If your total compensation over that period averages $150k, that's about $7.7k/month net in CA, $8.8k in WA. If you can invest $4k of that per month at a conservative 4% annual return, you'll have $1M in 15 years; about $1.2M if your return is 6%; and about $1.4M if your return is 8%.

This is all assuming that you have don't marry a spouse during that period who is also earning an income and helping boost those savings.

This is just a back of the envelope calculation, but my main point is that if you're dedicated to the task and you work hard, you can create for yourself a very strong safety buffer over the course of a 15 year career in the technology industry. $1M is almost enough to retire off of if you were to move to a rural area of the country and continued to live frugally--health insurance would be your most costly concern.
Powered landings mean precise, highly controlled landings. You land exactly where you want with minimum damage to the vehicle and you go out and put the stage on a truck so you can bring it inside and begin processing it for reuse in a matter of hours.

Parachute landings mean you have a recovery zone, you need a recovery team, you need to find the rocket and bring it back. Whether landing in the ocean or land with a parachute there's a high probability of significant damage from impact and/or seawater intrusion. So now you have a huge amount of effort just to get the rocket back, then you have to clean it up. And the parachute landing likely means much lower chance of being able to fly even one additional flight, let alone many, unless you develop some sort of cushioning system like airbags, in which case you have to add that complexity, cost, and weight to the system. And all of that is aside from having to repack the parachutes for every flight.

SpaceX is planning powered landings for the same reasons that commercial airlines do powered landings. It's safer, it's more controllable, it's a smoother operational experience. It just makes sense.
Great idea. I have never heard of this company before but I would love to start playing my old favorite games again.
Dwarf Fortress. Read about it. Play it. Marvel at it. http://www.bay12games.com

There is nothing same-y about a game where you can't hit a bogeyman with a hammer because he's too fast, but you can kick his ass with cranberry leaves because they're lighter and let you hit faster.

Or, how about the elephants roosting in trees? Or the vampirism that can take over a fortress? Of the possible were-versions of most creatures, with infections, meaning were-swallows, were-frogs, and plague-like invasions of were-spiders?

Dwarf Fortress is built to generate stories, not just monsters and treasure. Every dwarf has likes and dislikes, friendships, pets, belongings, all driven by a fairly simple AI that just takes these preferences into account when deciding whether or not the dwarf is drunk enough to actually do some work, or whether it's so depressed it wants to sit in its room and cry.
Good design isn't as essential as other facets of a company starting out.
i am relieved that the company named papyrus, who's listed for using a specific font, ISN'T listed for using papyrus.
Did you know Elite is going to have a sequel end of this year?

Planets looks a little better this time around:

http://img4.wikia.nocookie.net/__cb20140618220148/elite-dang...

http://img2.wikia.nocookie.net/__cb20140618220220/elite-dang...

http://i1242.photobucket.com/albums/gg522/frobitz/ed-rings-8...
Clearly Apple is dying.
(Shrug) There is no good solution, because it's the wrong problem. We shouldn't be using AC at the home/light-industrial level at all. No matter how efficient the inverter is, it's going to be constrained by the inefficiency of putting switching regulators in everything from wall warts to machine tools.

That's the part of the situation that needs to change, but of course it's the chicken-and-egg problem from hell...
I still think that the best alternative for putting the pannels in parallel is by using DC/DC converter on then, and never thinking about 60Hz AC.
What's interesting here is the difference:

Soyuz uses a 'suicide burn' that releases a ton of delta-V in a short amount of time.

From the video, it seems that Falcon uses a progressive burn as it approaches. They also mention that they can restart it up to 3 times in atmosphere.
The page is just a landing page, I believe you need to install the app.
Correct me if I'm misunderstanding, but this is only beneficial for static content, correct? For instance, if I want to load facebook.com, I still need to hit Facebook's servers directly (rather than the IPFS mesh). How does IPFS know if I'm requesting dynamic content?
Of course logos from spec work sites will be generic and overused. Good, original logos cost a lot of money.
OTOH: "Since the Nokia acquisition was completed in April, Microsoft sold 5.8 million Lumia phones and 30.3 million non-Lumia phones. "
Anthony Tran: How to Grow an Online Audience
To borrow from another field, there's a great 1969 interview with Charles Eames [1] (famed furniture designer) in which he discusses design, and constraints as being a necessary component of design. A pleasure to read.

Excerpts:

Interviewer: Does the creation of Design admit constraint?

Eames: Design depends largely on constraints.

Interviewer: What constraints?

Eames: The sum of all constraints. Here is one of the few effective keys to the design problem: the ability of the designer to recognize as many of the constraints as possible, his willingness and enthusiasm for working within these constraints. The constraints of price, size, strength, balance, time and so forth. Each problem has its own peculiar list.

Interviewer: Does Design obey laws?

Eames: Aren’t constraints enough?

[1] http://blog.designersrevolt.com/post/52143068880/the-definit...
Mobile Tech News Served Up Hot
And if you haven't yet, you should read Roomcarnage

Start at Chapter I and don't spoil it, it isn't yet fully played out and the community anticipates the next installment

http://www.reddit.com/r/dwarffortress/comments/2b6up6/roomca...
> Instead of writing a constructive algorithm, you instead try to specify what content you want in some formal way, and then use a solver to generate content meeting the description (a genetic algorithm, constraint solver, etc.)

This is basically the difference between imperative programming and logical programming. Each has advantageous domains (basically which ever way is easier to implement).
What's the name of the rhetorical tactic where you avoid an argument instead of addressing it by reframing the terms to create an obviously absurd and / or non-representative case?

There's a word for it, and it does not reflect well on the intellectual integrity of the people who use it. That's fair warning.

Back to the topic: I was speaking in generalities, but if I were to get as specific as you just did (by assigning a specific quantity of one), I wouldn't draw any sweeping conclusions before doing the intellectually honest thing by asking what happens when the quantity = n?

If, say, n = 1,000,000, then the effect is not so trivial. Moreover, the producer typically cares about the price point at which the number of sales and the value of each sale combine to produce the greatest possible revenue. While this point is not only non-obvious, it is likely to vary over time. So setting the price can be tricky. But one thing you can be sure of is that it's not zero. Moreover, all demand satisfied at the zero point is removed from the pool in which the ideal price / volume relation can be found, given that volume is a function of demand.

In other words, the optimal price in a leaky will pool will invariably be lower than one in a pool that doesn't leak. And that's how demand destruction lowers the commercial potential of a property with near-zero marginal cost.