skysight-inc/HackerNews huggingface dataset:
If there was a browser plugin that would surf some random innocuous crap in the background for me, with an eye to messing up the data scrape, I'd install it. ( Fly fishing? sure. Country Line dancing? OK. Fancy goldfish? sign me up. ) A three for one ratio of random to real would make the data set pretty much crap for advertising purposes.

The only drawback, so far as I see, is wasting bandwidth of sites I don't really visit.
Well, if the can fails you're toast either way. :-)

The pressure ratio for the compressors in the CFM56 engines in current model 737-800 models is 32.8:1, so somewhere in the neighborhood of 400-500 psi (will depend a lot on altitude).

Seriously, we've been building machinery to operate safely in this pressure and temperature range for a long time.
Shouldn't that be BYOO2?
I've read plasma gets squished out of your blood and fills body cavities such as sinuses to keep your head from imploding.
depending on the size and make up of the particulate our bodies are actually pretty damn good with removing most particulate, additionally because it is not a regular exposure it is now a smaller risk
Spooky- Just this morning I decided that building a cell phone would be my next evening project.
> ... for a seasoned programmer it saves me time coding because I don't have to enter whitespace and a closing bracket or a end space, etc.

Yep, I agree. When I'm coding something new, intent on getting something working as soon as possible, I appreciate the fact that it saves typing. Later on, when I'm trying to maintain, debug or expand old code, different story.
A vehicle near the end of its ride will be carrying up to 818 kg (1800 lb) of superheated steam (127 C, 260 F). The 4000 kg (8,900 lb) of onboard batteries and 1800 kg compressor will be dumping heat too. This is 6600 kg of "hot stuff", whereas the entire capsule is projected to have a mass of 15000 kg.

The current design has the passengers in an enclosed capsule in between the compressors and the batteries, with a pressurized air channel running right down the center isle.

Keeping the cabin cool will be a challenge. If that emergency braking is activated, it could get a little warm in there before they are rescued.

I think they may have to quickly repressurize the loop if a car ever gets stuck.
Speeding Up Geocoding on Rails with Geocoder
It would seem to make the stations a lot more complicated – they'd need to handle the car loading, the accompanying traffic, and the security would be really challenging.
Not going to help you with problems like when your boss says oh we have brought a mega expensive bit of kit 4 to 5 times my annual salary.

Just hook it up to the spare PDP we have and go and see Bob and work out how to use it to analyze the data from his experiment tracking high speed droplets droplets in 3dspace.

BTW I had to write a driver to network with a rtos (RT11) just to talk to the device. I was 22 at the time and joined the company straight from high school.
Why can't the next social network by a peer-to-peer network where your personal data stays on your personal machine at home and where you have total control over who has access to what.

Eben Moglen's FreedomBox project has been working on a soup-to-nuts software stack for that sort of thing for a couple of years now. They can use more talent.

https://en.wikipedia.org/wiki/Freedombox
You can't just make lighter trains; heavy rail is heavy because it has high capacity. These vehicles can be much lower-capacity per vehicle because the speed is very high, which means you get equivalent throughput even with much smaller per-vehicle capacity. It's just like how you can get the same amount of water through a high-pressure, low-diameter pipe as through a low-pressure, high-diameter pipe.

So yes, you could make the rail lighter, but in order to match the proposed passenger throughput, it would have to go 700mph. Good luck with that.
I'm not sure if the idea of "peripherals" matching such a device appeals to me.

Let's think about this... A keyboard is basically a device for entering text via mechanical (or touch) switches which appear on your console/screen. A mouse is a virtual index finger.

Even though most of us can't imagine our daily lives without them at the moment, they both seem archaic in a way. Don't get me wrong; I think that's part of their appeal (I have an IBM model M somewhere in storage), but their high-tech-ness(?) is a bit of a non-sequitur when the day comes when our phone/device/gadget/pc-thing can talk effortlessly to a keyboard and mouse.

It's almost as if a mirror with built in camera interfacing to your straight razor. Some things are best left old-fashioned.
Measures / Countermeasures
That is not how the POP or IMAP protocols work. To make the system work with existing clients, the server needs to have the plain text when it is sending to the client. Surely this is also how they complied with valid warrants (wait until user logs in, then execute warrant).

Asymmetric encryption on the server means that an intruder can't read the content (except possibly for those accounts where the private key passphrase is still in memory) and nobody can search old mails until a user logs back in.
> I think only allowing voting within the comment page would make it more likely that votes would be on content (or up-voted summaries in the comment page, at least) instead of the headline.

Maybe. And maybe someone intent on playing the system would simply move to the comment page and upvote there.
That may be true, but the only thing you really need is to find a company that is willing to build this while chipping in some of the R&D cost.

I don't think such a company would be hard to find because if they get this done, they are now the only vendor of a highly desirable technology. Pretty sure they'll be able to get back that early investment... and then some.

(And remember - Musk contrasts $6b to what he estimates could possibly grow to $100b for the current proposal, so even if they end up needing to double their budget, they'd still be off by an order of magnitude.)
Avoiding errors by using primitive data structures instead of objects and threading them through functions. Sounds like functional programming to me!
Market capitalization is just the valuation implied by the current share price. (share_price * n_shares).

For a less ridiculous hypothetical, we know that BBRY has $3bn in cash right now. Supposing that it instead had $10bn in cash, its valuation would not be the same, it would be $7b higher. Its stock price (and equivalently its market capitalization) would reflect that, because the stock market is a place where people who disagree about the how to value the company go to make trades they believe are favorable. People who go to the public markets and act on the belief that ($10b in cash + a niche mobile phone business) should be valued at $5b would be rare. They would also be very wrong.

The current valuation of $5b implies that the niche phone business is worth $2b and the $3b in cash is worth $3b.
It isn't that there is no profit in it. There is profit - but it is craigslist level of profit, not google level profit.
"I'd like to know what exactly is entailed in becoming compliant with money transmitting and laundering regulations."

This. Someone with more understanding of financial regulation, please step in and explain what it is the government would actually want from the currency. This sounds scary to some extent but there's no real reason that it needs to be. I assume it is to enforce real-world identities at the USD/BTC exchange point.
A bit of friendly advice.

Being introverted is one thing, being socially awkward and getting nervous when people talking to you can be a hindrance. If you expect to create your own business, the most important aspect will be customer interaction; you will need to get past these issues in order to be successful.
A plain reading of the Fourth Amendment clearly prohibits this sort of mass surveillance. Constitutional arguments tend to degenerate into semantic ones, so let's ignore that argument for now.

The threat to privacy and democracy is that anyone with access to this data can blackmail anyone. The NSA is storing as much data as possible for as long as possible. This means they have the communications (metadata or otherwise) of every potential politician, and thus the ability to blackmail them to distort their decisions. We're told that there are safeguards in place to prevent such abuse, but those safeguards are secret, and I can't imagine any safeguards being foolproof. The best safeguard to protect our democracy is to not allow such a system to be built.
In the US. Maybe.

https://www.eff.org/deeplinks/2013/01/rebooting-computer-cri...
"by placing solar panels on top of the tube, the Hyperloop can generate far in excess of the energy needed to operate."

He seems to be planning to build this over farmland? Because farmers aren't going to be happy about someone blocking their light.

Light is the limiting factor in plant growth.

If he's going to block the light to farms he'll have to pay them for the lost crops, and then he might as well just buy the land.
I am NaN!
Pretty but absurd.

With all that money I rather give a Cessna to 1M people so they can fly anywhere without restriction.

Or make special small airports for direct flight between cities. Much less infrastructure.

Kudos to Elon, I love they guy and his incredibly visionary mind.
Interestingly, and not trying to compare to what you experience but I'm not very tall and when I have to get a drink at a bar it's truly a challenge. And I always think "If I was one of those tall guys I would get better service". (I've not done anything to verify this other than it seems that way).

Likewise sometimes I am in my car and someone looks over at me. I think "wow if I was a girl I would think they are looking at me because of that!" (Because I tend to check out girls!)

My point is although there is no question you are subject to the actions you (and others describe) but it also could be the case that it happens for other reasons that have nothing to do with skin color. Make sense?

Lastly, while I am white, I am of a religion that has a percentage of the population that is biased against us. But for some reason I haven't really experienced that bad treatment that I can link to my religion. I think this is because my last name doesn't scream the religion as some others do.

One more thing. I'm married to a physician and I dated a physician. And when we are together people always assume I am the doctor or also a doctor. And they always seem to defer to me rather than my wife (or in the past girlfriend). My wife also has been treated by nurses without respect something they don't do to the male doctors.
I've worked at a bunch of different companies (Yahoo!, The Guardian, various smaller companies) and in all of them the "designers" were the people who did the visual design using Photoshop and Illustrator - those people rarely if ever wrote HTML and CSS, and almost never to production level standards.

The people writing production-ready HTML and CSS were known as "web developers" or "client-side/front-end engineers".
Some direct competitors:

- https://www.hackerrank.com/ (aka https://www.interviewstreet.com a YC company)

- https://codeeval.com/

- https://coderwall.com/

- https://www.employiq.com/

- https://www.mindsumo.com/ (college student only)

- http://www.codewars.com/ (in beta)
My bet is that Elon could build the Hyperloop closer to budget than the state of California could build a traditional train. Leadership matters.
I agree: I have no idea how the scoring system works. Am I supposed to get it done in as little (real world coding) time as possible? As few keystrokes? Is it supposed to be done in as few cycles (on their test machine) as possible? Should it be bulletproof, or just work?
Very good point. Another possibility is some forward-thinking government paying for the initial R&D effort to have one of these built in their state/country.
No. Well, I suppose you could design an active vibration system to (almost) completely cancel the vertical vibration motion, but know you're talking about a powered system in each pylon of incredible complexity.

Passive resilient systems could help with higher frequency vibration (above say 100 Hz or so, depending on the forces and weights involved), but for lower frequency vibration (especially below 20 Hz), the resilient elements would have to be so compliant that even a gentle breeze would create very high vibrations in the guideway itself, which would be incompatible with the speeds of the cars inside.

You could make the pylons so massive that the forces from the vehicles couldn't move it, but again you're talking about higher construction and material costs, as well as visual impacts.
A bigger factor is that the efficiency of a train depends on having all the cars connected to each other. With the hyperloop, the pods are spaced out, so there's no need for the structure to bear the load of a bunch of them at once.
Only people like software engineers would stoop so low to subject themselves to measures like these.

Aren't technical interviews (which are just politically correct way to test IQ) enough of a humiliation one has to go through?
Upvoted for beating me to the punch, and I'm leaving a reply before someone unrelated to the intended recipient doesn't get the humour and takes offence to your strong wording.
Nokia is getting $250 million each quarter from Microsoft, minus the price of the OS licenses, minus the foregone revenue from supplying Nokia Maps for free to non-Nokia Windows Phones.

With 7.4 million Lumias sold last quarter, at $25 per Windows Phone license, Nokia is drawing just $70 million each quarter from Microsoft. At 10 million units, they'd start paying Microsoft money.

Blackberry sold 6.8 million units last quarter. They have no maps to license to Microsoft. If they signed an agreement with Microsoft tomorrow, it'd still take several months for the first handset to come out. What would Blackberry be worth to Microsoft in a year?

The numbers are not in Blackberry's favor. That having been said, I will never underestimate Steve Ballmer's ability to overpay for a deal.
Wow. I was expecting it to be something like the UW Ram Accelerator (RAMAC), but he put a fan in front. I was thinking it would have natural gas/detonation for propulsion, using the ram jet principle, and continuous acceleration, but I guess that rapidly gets you to totally absurd speeds (10km/sec+) and wouldn't really be viable, plus humans aren't so into 10G+ acceleration even when mounted laterally.

I would totally ride this. I hope there's a way for California to build it, and more importantly, I hope we can fix our government somehow to allow projects like this to actually happen in multiple fields.
Schelling! Forgot about that one.
California is more able to attract interested private operators because the availability of potential passengers with money to spend on fares is substantially greater.
Note that the UK's new high speed rail (HS2) is budgeted at £33bn ($51bn) and likely to exceed that[0]. Being mostly straight, and across land already approved for rail use, it seems like an ideal candidate for a hyperloop alternative.

At 120 miles long[1] compared to the SF<->LA ~350 miles, a UK hyperloop would be even cheaper, especially since the major cost is the tube itself. A back of the envelope calculation[2] gives a cost of about £1.9bn ($2.9bn) which is suspiciously, almost absurdly, cheap.

If anyone can find any flaws in this argument (specifically related to e.g. UK-specific issues/laws that I may be unaware of) I'd be very interested to hear them!

[0] http://www.independent.co.uk/news/uk/home-news/revealed-hs2s...
[1] http://en.wikipedia.org/wiki/HS2
[2] using average cost values from the pdf, not accounting for differences in pylon height/amount of tunnel required etc.
Looks like the price of Bitcoins just made a good jump at https://www.mtgox.com/ . Are speculants thinking that if the us government are geting involved it validates Bitcoin further?

Edit: Screenshot of the jump: http://i.imgur.com/G5Dk7Nh.png
BART’s Tax Shelters
Build something you care about.
Do you feel the same way on all tipping? (For example tipping the bellhop or tipping the maid at a hotel?)

I'm not defending tipping I'm just curious how you feel about it in other cases.
Don't forget we're also comparing to HSR. On a train you can go to the toilet anytime you want.
The name Cap'n Proto is bit strange. The name makes me thing of CAP'N CRUNCH CEREAL and prototyping, but then I read about the connection to protocol buffers. Might want to think of a different name, e.g. Zero Data X "zero cost data interchange" or something.

I am using JSON to save structured data for an application, and this is interesting, although my app doesn't spend alot of time encoding/deconding the JSON since the data structures are fairly simple.

If I wanted to use this for Java, wouldn't there still be decode step to convert the fields into java objects?
Quite interesting; I've heard similar things. A good friend of mine, not as math-y as me, was a psychology PhD student in John Bargh's lab in Yale. She ended up getting her doctorate and leaving the field because she didn't want to be the statistics police.
There's a bug where if you drag everything out of your configuration, you can't drag anything back in again.

Neat though.

I'm on Firefox v22.
Greyhound is where I got the inspiration from.
Yes, just like that. Please show me a case where the setting is not followed because I have no clue what you're talking about nor can I find anybody complaining that it has not worked as advertised.

Furthermore, you're also free to disable the clearly labeled "Automatic Updates" service and then you can happily spend your time downloading and manually installing update packages. You can even get separate software to do this for you or even build your own.

You sure are right about one thing though. Windows is their OS...and it's a good thing too because I have just never had the time or the inclination to build my own ;)
It's kind of cool that Elon Musk is competing with himself here -- Hyperloop vs. a 3rd generation Tesla (which should be even cheaper than $45 one-way per car, including depreciation and electricity.)

The real problem, even once you add self-driving cars, is I-5's limited capacity.
I'll be more concerned when we have examples of actually I-know-it-when-I-see-it unfair "server" bans, rather than purely hypothetical risks. (We certainly have had examples of unfairness from other providers, like Comcast.) In these modern times there are many options available for shared hosting, IaaS, colocation, etc. at all price points and service levels. Of course if you're just operating your own low-traffic mail server Google doesn't care. They probably don't even really care if you operate an appropriately-throttled Tor node. If you're saturating the link, however, someone will notice.
Unpopular opinion of the day: bitcoin is real money, and the government will regulate it and control it as such.

In my opinion, the end-game is this: bitcoin addresses are taxable, with occasional tax agents spot-checking large accumulations of bitcoin to determine if said addresses fall within their jurisdiction. Bitcoin has the unusual ability to have a very tight trace on where a given virtual coin goes: that just makes the ability to watch the money easier.
ehm, no. you can create brand new wallet for each transaction and wallet on its own is not connected to your real identity in any way. it's more like government's worst nightmare.
I don't see Hyperloop's constituency; there really aren't that many people who want to commute to work in SF from LA and can pay the roundtrip Hyperloop cost who can't pay the $80 on Southwest from Burbank to SJC.

The problem with CAHSR isn't the "HSR" part, it's California's utterly dysfunctional political system, and going faster and putting the track up on pylons isn't going to cut through that morass without a stronger group of people standing up and saying YES, WE NEED THIS.
Pens and pencils are archaic interfaces as well, but they're still perfectly suited for their task.
Thanks. By comparison HSR in Europe carries 300-500 people with three minute headways (according to wikipedia).
...which means we can't set up our own instance of it or modify it work as we need (as I outlined above, in its current form it only does a fraction of what we would need it to).

Please don't superimpose your own views about software purity on our practical realities.
I hope this happens. I've only started reading the .pdf and cannot claim I will understand everything but it seems like a very promising read.
If Musk can partner with Richard Branson and other billionaires (along with contributions from people on the web) it could happen!
http://en.wikipedia.org/wiki/Pure_function
On trains the cars have to be connected to each other. The structure has to bear the load of all of them at once. Not the case with hyperloop.
HyperLoop on Github
right-here right-now anytime anywhere calling, texting, emailing, photography, GPS, location-critical web-surfing

This is not "consuming content". I consume content just fine on my desktops. Obviously I can't do GPS-based work while mobile on them, but GPS-based work is but a fraction of 'consuming content'. Indeed, I find it much easier to read emails on a big screen than to have a small window where I can only see part of it, and similarly there are plenty of websites that suck on mobile. 'Consuming content' is far from a victory won by mobile.

Edit: Also, games. Games on mobile are a wasteland of drek, for the most part. And you can't get much more of a consumer-oriented industry than games.
Jerry Brown's political career is coming to an end, so there are no long term political consequences for him. He's also traditionally been an opponent of government waste. I don't think it's unreasonable to believe that he would choose an unproven but promising technology over our existing useless high speed rail project. The assembly is another matter. If you think hyperloop is interesting, write and call your state assembly member and encourage them to consider this plan, that's what I'll do.
good point. Also my estimate is the marginal cost for a car vs the ammortized total cost for the hyperloop.
Get Your Mind Blown: Jason Silva’s Inspirational Shots of Awe and Wonder
> what the hell does anyone need this information for

Advertising. This isn't the first company to try this, and it sure as hell won't be the last. They want to know where people move, where they look, what stores they visit, and ideally what they googled for last night, and then send targeted ads to smart devices and electronic billboards.
it makes me think proto man from megaman.
My fear comes from a different old saying - absolute power corrupts absolutely. I've never trusted Zuckerberg.
Wow, 300 comments in 2 hours--this is reaching the limits of readability. My first thought is that this release of Hyperloop details is like the geek's version of the Breaking Bad season premiere that is being so talked about in the US (didn't see it myself).

First of all, I think it's genius how nobody saw this solution coming, despite all the speculation. Put the air compressor on the pod, and use Tesla's battery technology to power it. Seems evident in hindsight.

My biggest gripe is the non-inherent safety and thus the security issues. The evacuated tube is a real issue in my mind, and saying it will be re-pressurized in case of an accident seems dubious. Yes, like a modern jet, but planes can descend to 15,000 and people live. Also, planes don't fly at 150,000 feet (the pressure equivalent in the tube) and there may be other biological hazards other than breathing. But mainly, the vehicles are subject to the same exterior threats as airplanes, so security will need to be similar. In addition the tubes are also a target of threats, which is less of an issue with trains and not an issue with planes.