skysight-inc/HackerNews huggingface dataset:
This photography isn't really about "photons" or any amount of energy measurements of radiation emission at the subatomic scale. This is more about capturing macro-scale events at very precise time scales and exceedingly high shutter speeds, and detecting how quickly an arbitrary amount of light will traverse the components of a still life.

There's also a lot of distortion introduced into the final composited images, enough that they cease to look like photographs of normal physical objects, and start to look more like computer generated images of ray traced 3D models.
Do you know if matching up holiday allowances with staff partners was an issue? e.g., I could get away with taking months off or working on the road, but my wife only has the typical 20 days allowance here in Australia with about a week of it fixed at the end of the year when their office closes.
PRISMicide: World's most secure Bitcoin hardware wallet and anti-PRISM platform
Knowing the TSA, they'll just confiscate the devices and "incinerate them."
I find as I get older the urgency to do something technically relevant and interesting increases because time is running out. When I was a kid, I would focus on technical tasks that were not core because I had all the time in the world. Fortunately, now that I'm older, my ability to judge what is relevant and interesting has got much better.
Great post! I find this very useful! Thanks!
Oulu team explores magnetic communication for smartphones
Thank you for the clear explanation.

In a previous comment, I sought to further understand how the Lottery possesses the Markov property. Based on your definition above, I can see that it does simply because the distribution X_t of winning numbers has the same dependence on X_{t-1} as it does on X_1, ..., X_{t-1}, that is, zero. Do I have that correct?
The Chinese real estate market in general is very depressing: high prices, lots of uncertainty, no good bargains without buko guangxi. The smart money in China looks to a more stable/growing market to invest in, and the USA is very accessible. Its not necessarily all gray money (or even black money) feeding the buying, but there is probably some of that.
This can lead to a harder balancing problem, though, as the player becomes as powerful as the sum total of all previous monster equipment. If encounters aren't done in a specific order, that can be especially problematic.
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FOIA requests are based upon the information that everyone knows about: the FOIA. Such a reason is unimpeachable.
I've read that Henry Ford came up with the 8 hour work week after doing extensive testing[1]. I think the difference here is that assembly line work is not "creative". So you can do "non-creative work" for longer (8 hours I guess is optimal)... But it seems like this thread is talking about pure creative - e.g. difficult coding - time.

I'm not sure where you draw the line though. Is HTML and CSS mindless enough that it's "not creative"? What about basic unit testing?

I also don't understand how to reconcile this with the countless startup stories of how you spend all your time working... Even PG said he "used to work till 2:00 or 3:00 AM every night, seven days a week." and "During this time you'll do little but work, because when you're not working, your competitors will be. My only leisure activities were running, which I needed to do to keep working anyway, and about fifteen minutes of reading a night."[2]. Perhaps he actually did four hours of "intense creative" and the rest was mundane (he does in that same essay claim only 10% of the work was "technically interesting").

[1] http://blog.bufferapp.com/optimal-work-time-how-long-should-...
[2] http://www.paulgraham.com/start.html
Going further: what if this was broad exploratory study, not meant to test any specific hypothesis? What if they rated posts based on thousands of features, a parameter space large enough to guarantee they would find plenty of correlations (both spurious and substantial), and randomly perturbed each user's feed and monitored how the features of their contributions changed? I would expect that they already do this, and from the very small amount of detail I've seen in articles about the mood factor so far, I wouldn't be surprised if this was just one of the more interesting correlations that fell out of that sort of process.
What's the science behind this? Is it not a bomb if it "powers on"? Is it a bomb maybe if it doesn't? Do unpowered devices pose more of a threat than powered devices?
I'm sorry but I think if you would like to implement a language not only use it, it would be better to learn lisp at first.
It is very easy to implement lisp on lisp and modify it as you like.
This is an scheme interpreter I wrote in scheme.
It's extremely short compared with other language.
There are many good textbooks, too.
http://www.scheme.com/tspl4/
Ah, no. Unless you like shoddy toufu housing.
Show HN: Weekend project - Discover and explore connections between songs
And what happens when both electable parties' political machines put up primary candidates on the same side of an issue?
The problem isn't the TSA, the problem is terrorism and the geopolitical policies that foment them.
Finally, finally, finally. An article on Hacker News about the whole San Francisco housing thing that doesn't assume that you're familiar with the issue and have picked a side. After all the rhetoric I've read about, say...

"the defeat of the proposition to prevent the blockage of construction on the waterfront proposed by the cool NIMBY elitist outcasts who are driving up housing prices to keep out the cool rich tech outsiders who are ruining this city"

...it's nice to have some history and context about what's actually going on. Thank you.
Not Wands of Wishing. Also not magic lamps.
There are at least 10 separate train companies running 40+ lines in Tokyo and yet that seems to work for them. JR, Tokyu, Seibu, Eidan, Toei, Odakyu, Keio, Tobu, ... I'm too lazy to look them all up. There are probably as many bus companies as well.

On top of that in Tokyo there are 23 wards each with it's own laws, taxes, etc.

What's special about California? Why does it work in Tokyo with 25 million people (or maybe it doesn't?) and why doesn't it work in the bay area with only 9 million?
It's a good point, but my point was that it's not an either/or thing. There's plenty of outrage to go around, and the fact of the matter is that the NSA has enjoyed a very privileged position on the internet that the FSB simply doesn't have, so even if they're relatively transparent and respect the rule of law more than the FSB, we never trusted the FSB with anything sensitive in the first place, so they had no opportunity to commit the crimes that the NSA has perpetrated.

Not to mention, the NSA are the ones that the Americans are actually paying for and who we have some (albeit low) chance of stopping. There's no point letting the perfect be the enemy of the good.
For some reason, this was worth a downvote even though it has some validilaty.
Pointless. Plenty of airports that allow transit from domestic flights without another security check. The terrorists will just board there.
Is $50 for an eBook normal?
Really? This is from 2008. Can someone confirm this is still true?
They want to unlock your phone and poke around. If it's 'out of battery' that's not an excuse.
I think it is not easy nowdays....
I read the post, and I've got to say that I've been coding every day since I was about 7, and I'm over 40 now. I've got to say that the problem is not will I not be employable, the problem is that there are not enough programmers to do the work, and not enough marketing staff to sell the products and get the software/hardware out there. So, yeah this guy is toying with Javascript and all the random frameworks that come out every day but I'd say stick to performance, security and scalability in your code and there are only a few languages out there that you'll ever really be writing software in anyway. It's also better to be writing your own software, not something for someone else. Because at the end of the day, its better to make yourself wealthly than someone else.
Companies have been purposely making people feel bad about themselves for a very long time.

Ads intentionally make people feel ugly, lazy, stupid, fat, dirty, smelly, dandruffy, lonely and ashamed so they'll buy whatever product is on offer.

Commerce is all about manipulating people for profit. I'm not a Facebook fan, but tell me how this is worse than standard operating procedure with every other consumer product?
The TSA and other US airport security process has gotten to the point where it's unnecessarily onerous. I avoid even stopovers in the US when flying (unless the US is my final destination) because it's such a wildcard/inconvenience both with security as well as immigration - it's easier to just pay more and fly direct or pick flights that are less convenient but don't transit through the US.

If they start confiscating un-poweruperable devices at any scale (ie if it were an enforced policy), that'd make transiting or traveling to the US far more prohibitive (realistically, i'd never transit with my primary laptop; and I'd imagine that a lot of organisations would start allowing their staff to only travel through the US with their China laptops)... ie it sounds like a terrible set of rules to have; and an even worse set to consider enforcing.

edit: I'm Canada-based and travel internationally several times each year -- avoiding the US on these trips is a real inconvenience.
Because my fave 256 aren't the same as yours, and palette switching is a huge pain. see for example what a pain it is to get Solarized working across both terminal and X and ssh sessions, in vim and emacs.
Crowdfunding Platform Seedrs Begins Offering ‘Convertible’ Equity Option
Hmm, just says "Loading..." for me on my antique old setup (original Galaxy S, Opera) - and frankly the main site actually works fine. In fact none of these alternatives look better imho, and I like to see how many comments are already up before opening an article - something many of them leave out.
It is an either/or thing. Either you have a robust American FOIA-like system... Or you don't. (If you're outside America: You don't.) You want us to hate them all, I argue it is practically impossible to hate anyone else besides the NSA/CIA/FBI without an equivalent to the FOIA. Its epitomized by the American phrases "what you don't know can't hurt you", "what the eye doesn't see, the heart doesn't grieve over" and "ignorance is bliss". I think where people get it wrong is when non-Americans think America is the problem--and that is because they lack a FOIA.

> we never trusted the FSB with anything sensitive in the first place, so they had no opportunity to commit the crimes that the NSA has perpetrated.

Don't mistake absence of evidence as evidence of absence. And I say that knowing full well that without a FOIA, such a mistake is impossible to avoid. The fact is you have no clue about any agencies besides the NSA/CIA/FBI. Be careful how reliant your hatred is upon knowledge when your knowledge is deficient.

> the NSA are the ones that the Americans are actually paying for and who we have some (albeit low) chance of stopping

The NSA/CIA/FBI are the ones that anyone has any chance of stopping. Because its the only one where FOIA information can overcome your ignorance that "they had no opportunity" or some such nonsense. But the first step is to enact FOIAs, not stopping the NSA/CIA/FBI.
"TSA will not disclose which airports will be conducting the additional screening, although it will be at some airports with direct flights to the U.S. Industry data show that more than 250 foreign airports offer nonstop service to the U.S."

Prediction: after some time, they will just roll out this policy everywhere - including US domestic airports.
I wouldn't want to travel to Israel as an Arab or a Muslim though.
I assume this is so they can log cell phone/tablet IMEI numbers and/or MAC addresses at the airport while the foreigners queue to be finger printed and photographed?

If they log the IMEI they can track most foreigners as they move around the country. Even if they are not bringing sim cards, the phones will still try to connect to a local network to allow emergency calls.

Or maybe so they can confiscate and download the contents of electronics devices quickly with as little delay as possible (it can take 5-10+ minutes before a completely dead smartphone has enough charge to complete a boot up).
Choosing Localizations By Analyzing App Store Review Distribution
>Plenty of airports that allow transit from domestic flights without another security check. The terrorists will just board there.

For some reason I am having trouble understanding the first sentence.

You're saying there are airports in the US that you can stopover at (with starting point also in the US) that don't put you through a second security check for a leg that leaves the US? I thought they all did that.
It's not okay to be lazy. But it's wise to prioritize architecture over performance until you have numbers to show you where you should put necessary optimizations. In my experience, optimized code is almost always harder to work with, so there better be a good reason to write it that way.

It's a lot easier to optimize well-architected code than to re-architect optimized code.
Fair enough, but I didn't say "data types and types are not the same thing", I said "(abstract) data types and types are not the same thing" (unless I did for a moment before a quick edit, but I don't think so).

Anyway, I think we've cleared up what I apparently didn't put very clearly in the first place: Algebraic Data Types can help with implementing Abstract Data Types, but one doesn't need the former for the latter -- and I suspect the data structures of "Data dominates. If you've chosen the right data structures and organized things well, the algorithms will almost always be self-evident. Data structures, not algorithms, are central to programming." are indeed closer to using the right simple data structures along with the correct abstract data types -- so there's no direct contradiction between the 5th rule and Go not having (proper) Algebraic Types.
I'm in my 50s, and I'm having a ton of fun with this new stuff.

After burning out at a startup that did everything in 68000 assembler (nice architecture...) in my 20s I'm getting back to dev work now and finding I still have aptitude and curiosity.

There is a lot happening. But the change has barely has started yet. I can see hints of new shapes coming over the horizon, and anyone who thinks they're going to be needing the same skills ten years from now is fooling themselves.

Imperative and functional styles have been around for decades already, it's true there's a lot of pointless reinvention (at worst) and refinement (at best) happening.

But very different things will start happening within the decade. IMO the fallout after the bootstrapping will be like nothing anyone has seen before.
You're saying you can avoid a TSA check from overseas if your final destination is US? Example of this? I doubt any example is from an at risk country.
Right. Manhattan isn't even that "Manhattanized". Most of the high buildings are in the Financial District and Midtown, where few people want to live.
I don't know about other companies, but depending on the type of startup you're running (eg. a SaaS vs. a free service with ads), some things that could be focused on are:

Month-over-month growth in:

User numbers
Sales
Length of time spent on site/app

You could also possibly measure year-over-year growth. As far as comparison goes, perhaps using a stock-market tech index will be a good way to determine if you are experiencing good growth (although this may not matter if you are not targeting massive growth and an IPO/acquisition).

The problem I personally see is that as entrepreneurs, we/them will tend to focus on measuring every metric (through some template we found on the internet), yet it makes more sense to determine what metrics truly matter (determining what is important is tough for somebody not experienced in finance/accounting).

"What are you doing today to measure them?"

Probably using analytics tools (a big part of the SaaS market I think) and also tracking your finances through finance tools (another part of SaaS).

Oh, and per your title question, I think all companies bother with forecasts. They give a sense of direction, in terms of what your growth trajectory is (you can also use forecasts against actual numbers to see why you couldn't mean targets and using that info, spot flaws/weaknesses in your business).
We're in our late thirties and just spent the last month (pretty much 24/7) learning golang while developing our own cloud-based relational database (which has some really impressive benchmarks by the way) so this whole idea that you cease becoming adaptable to new technologies the moment you hit 30 is silly.

If anything, we find it's the early 20-somethings these days that are rusted on to javascript or ruby and can't seem to work in anything else. There isn't any passion anymore.
Show HN: An Android app to watch video highlights of World Cup games
In the Bible, God defines what is right and wrong. He issues the commandments. If he does it, it can't be wrong by definition.
Because those aren't psychological experiments. Nobody's claiming it's ethical for an ad company to make you feel bad about yourself, but that's not really the point here. The point is that there are strict ethics rules for running experiments, and one of those rules is, except for a limited exception (that does not apply), the subjects need to be knowingly taking part in the experiment.
A Zany Imagination Runs Riot
Yeah, I have to admit that they do a good job of screening you without making you feel like you've done something wrong.

Still felt that I was targeted for some reason, but they helped me skip a few queues once they confirmed everything was in order.

Net result was a fairly neutral experience. Which is kind of good I guess.
I look forward to you producing a list of all representatives and senate candidates that are against these privacy violations, with citations of course.
You seem rather comfortable in your knowledge of this.
Can your face reveal how long you’ll live?
Reality Distortion Field (1981)
And there is research to back this up? One step below burn-out sounds miserable to me.
What has happened to us that "idealistic" has somehow become a slur?
The fear of getting caught shouldn't be the only reason you don't do something. Either it's important enough to do, or there's multiple reasons doing something isn't a good idea.
I'm sure there is some overseas participation in the San Francisco housing market. And San Francisco does have a high vacancy rate (relative to the U.S., per the 2010 census).

That's an interesting situation to try to understand. It's not an especially sound basis for an angry rant about corrupt foreigners ruining the housing market there.
I think their premise is that a device which has been converted to a bomb large enough to cause total destruction of its target would have had the majority of its components removed thus rendering it non-functional. Following that "logic" a device which powers on has a much lower chance of being an explosive device.
Slightly different situation, but while I was away in Israel for a conference, the battery on my laptop stopped holding a charge. Thus, I could only power on my machine if it was plugged in.

Of course in the airport I was asked to turn it on. I explained the situation and that I had no adapter, so they offered to take into a back room to check. I agreed and they came back around 15 minutes later to say it was charged and I should turn it on now.

Obviously something was lost in translation, but they ended up getting me to talk to the head of security. Finally I had to surrender my battery and charger for additional screening and pick them up at the airport a few days after my arrival.
Advertisements for consumer products are effective precisely because they cause psychological and behavioral changes in consumers.

Companies rigorously test and refine ads to manipulate emotions and behavior on a scale two or three orders of magnitude greater than Facebook's experiment.

Is Facebook's experiment different because they published the results in an academic journal?
Apple and Google move computing forward in identical-yet-incompatible ways
Oh yes, downvote. The possibility that the TSA has a threat that someone is going to be planting a bomb in a laptop that can't be detected by chemical smell is zero. It's not like terrorists have access to the same chemical detection equipment. http://en.wikipedia.org/wiki/Timeline_of_airliner_bombing_at...
Thanks for that. Yes, I'm a little sad a lot of the VRI stuff has a bit of "abandonware" feel -- I suppose they view it at just some (half-silly) proof-of-concept code, but I think a lot of this stuff could be really useful right now.

I really wish they'd taken the time to package it up, and license it under some Free licence -- I'd hate for this stuff that doesn't seem to require anything in the way of special hardware -- languish and disappear in a similar way to Smalltalk -- for no good reason.
FreeBSD 9.3-RC3 Released
That doesn't make sense. A simple x-ray would show that the internal components have been removed.
We do not use "general mental ability" tests.
I'm not sure this is new either. I remember traveling with my laptop (post 9/11) in sleep mode going through security so I could quickly 'turn it on' to show that it was a real laptop.

From what I can remember they're always (since before 9/11) been able to make you turn stuff on to prove it's real. Maybe they'll do it more, but it's not as if this rule came out of nowhere.

I agree with one of the top comments (as I write this) that if they every truly started confiscating 'dead' devices (at least of Americans) they would quickly run afoul of congress due to complaints.

Body scanners? "Whatever makes me safer." Taking your iPhone? "YOU'LL LOSE YOUR JOB".
They do this at Ben Gurion Airport too - make you turn on all your electronics, the Israeli airports are praised for their security procedures - right?

eg: http://www.huffingtonpost.com/2013/12/23/airport-security_n_...
It annoys me to no end when people bring up the extreme overreaction to terrorism as justification for paying extra attention to terrorism.

You're mixing up cause and effect here. Invading Iraq/Afghanistan is not a reason to put a lot of effort into counterterrorism. It's a reason not to.

The US is like a country that's allergic to bee stings. The immune system is constantly finding new ways to fight bee stings harder and faster than before. And when we point out that the vast majority of the damage done by bee stings is actually done by the immune system's reaction, the counterargument is that we suffered a lot of damage in the last bee sting, so we need to react.

Imagine a "keep calm and carry on" reaction to 9/11 instead of the panic attack we actually had.

Yes, the differences are huge. And we should work to make them not be huge, instead of using the huge differences to justify making huge differences.
I've always opted to fly through HK rather than LA, US customs are both scary and slow. (As well as feeling like a an underground parking lot..)
Israeil has a small population/traveler count and a relatively direct threat. The US has a huge population/traveler count and a vague possibility of threat.

That may not work here.