skysight-inc/HackerNews huggingface dataset:
Weird observation: Even though the days are getting longer, sunrise is actually still getting later for a few days. It's just that sunset is getting later faster.

http://www.timeanddate.com/worldclock/sunrise.html

I think the instant of the Solstice this year is 17:47 UTC

In Los Angeles: 09:47

In New York: 12:47

In Melbourne: 04:47 on the 22nd
I must admit eventually I became of suspicious of "Good Calories, Bad Calories", too - who says he didn't handpick the studies to quote, like everybody else? The format of the book was very weird, just this stream of quotes. Not very pleasant to read at all.
I was about to comment this one, but u already did.
I learnt this (and dozens of other interesting words) years ago from Anu Garg's AWAD mailing list.
http://wordsmith.org/awad/archives/0404
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Useful image of the sun and sunshine on the Earth:

http://www.timeanddate.com/worldclock/sunearth.html
Word of mouth really only works if you live there, not so much if you're just passing through. And the time you really need a site like yelp is for all those times you're just passing through place and want to know who will do you a good pizza.
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Sure, but it's also important to realize that Google Maps was a rare success in a string of mostly failed projects/acquisitions (Orkut, Knol, Picasa, Google Video, etc).. I'd argue that Google's biggest successes were in areas in which the previous leaders failed to innovate for years (Mapquest, Hotmail), whereas Yelp is a very active company in a constant state of improvement/innovation. If I were Yelp, I'd be more concerned about Google doing something which would cause it to lose placement in search results.
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This is why different Wikipedia banners result in different average gifts
It was on HN yesterday.
"Optimizing Wikipedia's Fundraising Banner Ads" (http://blog.wikimedia.org/2009/12/11/annual-fundraiser-checking-banner-results) asked readers to post their thoughts on the difference of average gifts donated by wikipedia users, when shown different banners.
I wrote a blog post about the "anchoring heuristic", which explains the phenomenon.
Depends on their location I would presume.
Top 10 Design Mistakes ?
Yelp is not doing anything revolutionary. Before Yelp there was city search. Yelp came along and improved on what city search had done. Who is to say a better Yelp won't come along. I think they will regret walking away from this deal in the near future. For a very recent example look at Friendster. Although I hope I'm wrong.
typically, most accounts get banned for one or two really unpleasant comments. once an account is dead, every comment that person makes in the future will also be insta-deaded, whether it is civil or not.
I wonder if there's a statistical test for mob voting... a mob vote is a vote reinforcing an already extreme score, a mob voter is someone whose votes are usually mob votes?
Hello I never said it was simple, I say it has to be simple. But the human being is way complex and error reporting are so simple. Simple doesn't mean "easy". IMHO engineers try to do complex systems they don't understand, instead of simpler ones.

I have worked in automated real-time systems, and I was not bad at it. And yes, I have seen real industries working with duct tape fixes, hanging cables when there was parts movement,that was a calling for disaster, but I will never take responsibility of it with my handstroke because if I let them go I will go to jail if it happens. I know what is stopping a production chain for doing something the "right way" and having the owners eyes on you while they are losing thousands of euros every not working minute.

That is the proper and original meaning of Murphy Law, if you let something to happen, it will.

Even when proper training, people do stupid things just because they can when you let them. I had in my family an airplane pilot from the early days when 50% of their colleagues had died from crashes. A friend of him died trying a "macho" demonstration to her girlfriend with his little plane. If you try to do stupid things with a commercial airline, it won't let you unless you deactivate the automation(and give explanation of why you did so).
Precaution, uncertainty, insurance, and morality [re AGW]
I watched it a while ago but I did not understand what was the key idea that he wanted to say.

Okay, the corn syrup is just fructose, and as I understood from the lecture it's equivalent to poison so we should avoid it.

But then sugar from plants and fruit also contains fructose! For every gram of natural sugar there is half a gram of fructose. If we eat natural sugar it seems equivalently bad? I don't get it.

So what does the lecture tell? Does it say we shouldn't be consuming sugar at all? Or should we only be consuming glucose part of sugar? Or what?

Can anyone explain?

Thanks!
This post makes the point that the greater the uncertainty in the climate models, the greater the potential catastrophe, and the greater the need to insure against catastrophe.
10 million viewers a week implies otherwise

edit: it's rare for UK tv shows to exceed 10m viwers
What are these extreme actions though? Are you saying that it's a bad idea to do things like focus our attentions on more renewable forms of energy? Even if there is no Global Warming whatsoever the idea that 'Texas Tea' will gush forth from the Earth until the Sun engulfs the Earth is a bit 'out there' to say the least. I don't even care if you believe that 'peak oil' is still 200 years off. The idea that we should greedily waste as much oil as we can, procrastinating on looking for alternative energy sources is juvenile at best.
IIRC T-nation had an article on this. Fructose in an apple is OK because the fibre etc means it is absorbed more slowly. The body isn't designed to have a huge amount of fast-digesting carbs dumped into it in one go - even if the total calories are the same.
That is, in fact, ozone. You're not alone. I often smell it ahead of big storms as well. Of course, I also smelled it after watching the maple tree in my front yard get zapped 20 feet away with nothing but a window screen and air between my face and $DEITY knows how many kilovolts.
I've always been a bit confused on topics related to MSR. Everyone seems to hate Microsoft, for their products, for their policies, for pretty much everything. Although I've been noticing that its going down. But still Microsoft Research happens to be the most respected research group. And thats in my very humble opinion. (I'm just completing my undergraduation.)
The kind of people who join MSR, the kind of work that they do, the kind of groups (in academia) that they are associated with - everything happens to be top notch. Still there are so many people who are anti-MS. Confuses me everytime.
It depends.

It depends on whether the manager adds value.

When I stay with my programmers it's because sometimes I can:

+ be a cardboard programmer

+ actually help with the code

+ make a decision about things to leave out

+ order pizza (or other food/sustainence)

+ clarify priorities

+ be someone to check weird noises in the building

And I want to make it clear that I trust them to do the work, and will be there to support them.

What I don't do is drop in every hour to make a witty comment.
Verizon locks its users into using bing on Blackberry phones.
I understand that that it's a collective action problem, but game theory only applies if things stay constant. By practicing what he preaches, and taking the hit to ss he shows that it is important, and he can use that to convince others to do it. As more people do it, the loss of ss per person goes down, and it might even invert (lose ss for ironing).
Studying Young Minds, and How to Teach Them Numbers
Innovation comes at a cost. One has to be willing to accept failure.

NASA isn't at the moment. I'm not sure any nation is willing to accept high enough failure rates in their space programs to fly by the seat of their pants.

Increasing launching is maybe a start, but until the space program tolerates more failure true innovation might be tricky. High risk high reward work loses in that environment, no matter the lipservice paid towards that work in overviews.
There is a big difference between attempting geoengineering and trying to reduce carbon emissions. Don't conflate the two.

I'm pretty suspicious of geoengineering with its promises of "we don't have to change our habits, we can just funnel a lot of money into government contractors to dump stuff into the atmosphere".

Now assuming climate change is indeed man-made:

The great thing about reducing our emissions is that we know we won't screw up the planet worse by doing so.

The problem with reducing or "greening" our economic activities is that there are people who stand to lose a great deal from it, even if the majority would profit. Geoengineering is being sold as an alternative that would mean more economic activity (and hence more profit).

As for our limited resources, we currently spend far more of them on cheap trinkets from China, bailouts, bonuses and pork than we do on anything like malaria.

I'm pretty suspicious of the sudden flare of "global warming is a lie / is not man-made" stuff that's come up conveniently at the same time as the Copenhagen conference. Lots of people with lots of money stand a lot to lose, and those kind of people tend to employ PR firms that aren't above a bit of astroturfing.

Even so, it is of course possible that climate change is misunderstood and that reducing carbon emissions won't help. But I don't think I want to do a wager on the whole planet.
If you have ever tried going low- or no- carb, it is exactly like withdrawal. You feel awful and then just a taste, just a little, won't affect the diet, and you feel OK again...
Noscript doesn't even allow the frame to open. Either that or adblock... There's a nightmare I have that one day I will have to use the internet without them - and everything will be covered with ads.
I know a bunch of subjects I could have got an A in had I cared less about my CS courses.

I find this comment to be rather sad.
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Agreed. I saw I got minimally downvoted for what I thought was a comment that really added to the conversation. It's disheartening to be downvoted simply because somebody doesn't agree with you.
The real meaning of decimation
If you think this debate is about oil you are very wrong.

Oil is a transportation fuel, we can find away around that, maybe expensive, but its solvable.

This is about coal and natural gas. Much of the industrialized world runs on those. Start to strangle those off and you raise the cost of absolutely everything.

Raising the cost of everything == making everybody poorer. Millions of people live on the edge now and would start to drop off.
Code that will blow your mind
The guy who wrote the thesis is the same who popularized a notation about the limiting behavior of functions which was introduced by the German mathematician Bachman. The notation is therefore called the Bachmann-Landau notation. Alternatively it is known as the Big-O notation.
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This is a very good (if unintentional) argument against manned space flight.

There is no way that firing an elaborate terrarium full of large primates into space is ever going to be cheap, and there is no scientific basis for continuing to do it (other than the circular justification of learning more about how space affects the people we fire into it).
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Stealth Disease and First Mover Paranoia
Definitely - we understand and appreciate the spirit of HN. All the feedback here is gold.
OK, I guess I misunderstood the use case. Seems like a niche to me.
> a manager is a disruptive figure to a coder,
> whose presences implies the possibility of
> sudden changes of course, and who can't be
> casually ignored.

You mean a bad manager. A good manager is none of those things.

I try to be a good manager, and my programmers tell me that they appreciate my staying on those rare occasions they have to work late.
On Accountability
Fear of bad ideas
NASA missions have proven very innovative - and very tolerant of risk - when astronauts' lives are not at stake. The various missions to Mars are a good example.

Contrast this to the kind of extreme conservatism needed to operate manned missions, where every mission-critical system needs to be massively overengineered and multiply redundant.
How old is Jeremy Stoppelman?
Yelp also seem to have some slightly questionable business practices. Google could win just by not being quite so evil as yelp.
Forecast calls for more clouds in computing
Seems like we would be better off with android-avatars. There is not really a need to send actual humans to just do the kind of early exploration we want to do at this stage.
Vitamin D is a fat soluble vitamin, like Vitamins A, E, and K. It does accumulate in the fat tissue. An excess of Vitamin D is not simply disposed of in the urine, like Vitamin C or the B-complex.

Interestingly, although it is now evident that Vitamin D insufficiency and deficiency is higher in the general population than previously realized, it is often worse in those with higher levels of fat in the body.

"CONCLUSIONS: Obesity-associated vitamin D insufficiency is likely due to the decreased bioavailability of vitamin D(3) from cutaneous and dietary sources because of its deposition in body fat compartments."

above from Am J Clin Nutr. 2000 Sep;72(3):690-3. Decreased bioavailability of vitamin D in obesity.

Vitamin D toxemia can occur. One of the more common symptoms is nausea, and if the toxemia persists, calcification of soft tissue and formation of kidney stones can result. Vitamin D is needed for proper intestinal absorption of calcium, so excess Vitamin D can throw off proper mineral balances in the body.

Likelihood of toxemia is rare for Vitamin D, however.

Consider that a healthy individual can obtain 10,000 IU or more of Vitamin D produced by their own skin from being exposed to the sun for 20 to 30 minutes. The amount of Vitamin D in a standard multivitamin supplement is rarely more than the current US RDA, which is only 400 IU. So even people taking higher dose Vitamin D supplements of, say 5000 IU, are not really mega-dosing/"going Linus Pauling" with their Vit. D.

Also, that current RDA of 400 IU is now considered by many scientists and health professionals to be too low. It may simply be the minimum amount needed to prevent rickets (known in adults as osteomalacia). Now it is known that it is needed for more than just bone development and maintenance, as Vitamin D receptors have been found throughout the body; some reports say virtually everywhere.

Reading through the information at http://vitamindcouncil.org , it appears that to achieve what is now considered an optimal Vitamin D level in the body, people generally need more sun and/or supplementation.

In the news within the last year or so, a study reported that even 50% of Hawaiians were low in Vitamin D. In modern society, I guess that walking from the car to the office daily just doesn't cut it for sun exposure ;)
this is a fantastic idea
I have written a blog post on this with detailed explanation of the 'anchoring heuristic'.

http://saperduper.org/post/293243288/wikipedia-donators-anch...

I also posted it on HN http://news.ycombinator.com/item?id=1007587
From what I understand of the original rover designs they were originally designed to be extremely intolerant of risk and it's only after an intern was dicking around with a robot that actually worked that they saw the light and realized they had to go with the "bump around a bit and see what happens" approach.

Even then, I would argue that NASA's strength is more in finding solutions to extremely constraining problems (i.e. all their big saves) more than it is to finding solutions when nothing's the limit. Though it's not my field and what they do is pretty amazing, so really this is all just coming from me and my armchair here.

I don't really believe you that the missions have been at all tolerant of risk. I see very very little to back that up.

Look at how much of a stink got raised when units were converted wrong and we lost one probe. Do you really think NASA's a risk embracing kind of place?

IIRC the current reaction that particular issue is all schematics involving every single component must be in US units. Sure sounds like a fast and loose environment to me!
As a member of the EU, the UK can't pass such a law. We've given up some sovereignty for the benefits of being a member of the larger entity.
Google Videos
Ma Bell and Bell Labs had the same issue. It's definitely surprising but nothing new.
Rage performs live on the BBC, including a surprise ending that shouldn't have been a surprise to anyone. http://www.youtube.com/watch?v=lx19x9xPB8o
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This was really very interesting. I for one was mostly ignorant to the big difference there was between glucose and fructose. Also the bit on ethanol was quite interesting in itself.

The fact that HFCS is made from normal corn syrup (almost 100% glucose), which is processed into fructose seems almost ironic.
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I've used BASIC quite a bit on the C64 as a prototype tool. Everything ran so slowly that even the slightest performance gain in my algorithms where noticeable with the naked eye.
So when my demos where coded in assembly I knew which algorithms where the fastest.
Ahh the memories :-)

I'm not sure BASIC captures the imagination of kids these days. _why's Shoes does a much better job.
Yes I am not knocking Forth as a language for embedded systems. I own a copy of Thinking Forth and it's great. But it's not what I'd use to teach kids (having had LOGO and BBC BASIC myself).
Its not really an issue of elegance. Either way is not pleasing, but given that your code is the only consumer of the exposed http.Send, my recommendation is that you isolate your end users from the Go.http's evolution by including the (dup) code in your source and removing it when the update release fixes the issue. Transition would be transparent to your end users.
A natural form of MSG is found in one popular variety of edible seaweed: kombu.

Interestingly, some canned beans, e.g. Eden Organic (unsalted), come with kombu in the can.

All the debate over things like artificial/alternatives sweeteners and MSG seem like a severe case of not seeing the forest for the trees. The issue of which sweetener to use is not so big as how much of any of the sweeteners. And for those who eat a diet of only whole foods, the answer is even easier: none.

The controversy over issues like these has the general public all worried about things they don't need to worry about so much, instead of being concerned about things they really should be, e.g. what foods make up the diet and their nutrient density. Worrying about MSG in my junk food, organic vs. conventional pizza, or HFCS vs. cane sugar soda, is not likely to have much benefit if these items make a regular appearance in my diet.
Wapedia - Wiki: Hashlife, super fast Conway Life implementation
Point 6 is a really cool way picking a random row and has never occurred to me. It does make me think though why has something like this never been optimised out by MySQL before running the query. After all it is such a common requirement.
I've been looking around for a while now, with little success ... are there any timeframe / estimates on when Rails 3 will be live? There's been lots of hype about it for months, and I'm looking forward to moving over to it, but I don't know quite how to manage my expectations in terms of projected release dates. Anybody know?
It was a highly-voted article (almost hit the top), so lots of people came in here to see what people had already said. Then some bikeshedding happened: since the discussion was on linguistics, no one felt qualified to add anything—but they did feel qualified to notice that you hadn't picked up on something. :)
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Different Types of Massage Therapy
Your programmers also tell their mothers-in-law that they love having them over...
How about the voting staying as it is, but a facebook-esque "Like" thing put on the comments. This way, people can "like" a comment without having to resort to voting. Their intepretation of voting stays the same.

People are familiar with the "like" concept, so such a move would be intuitive to a lot of users. It would also ease the difficulty in understanding the voting system.
We're going to see more and more of these articles popping up as cars become more automated.

To me it doesn't matter what the rate of failure is on automated systems, as long as the rate is below human failure rate. In that case, we win. It also doesn't matter whether humans can recover given a failure, again given that the failure rate is already below the average human failure rate.

The problem is that humans are really hung up on the illusion of control. We know that in a car that drives it self that we're not in control and the prospect of that machine killing us without our intervention scares us. What we're not so sharp on is that by taking control we are [hypothetically] increasing the chances of our injury or death, and in a field of all manual or all auto cars, manual control doesn't even favor skilled drivers since the real danger for above average skilled/careful drivers is the /other/ drivers on the road.
SBCL LLVM
http://en.wikipedia.org/wiki/Yalda
Yelp is, from my observations, anything but active. They haven't innovated in terms of UI or features in probably two years. Even geographies have been slow to develop - UK took a long time to appear.

In fact, they're oddly static - the number of reviewed restaurants and stores has increased quite slowly for most cities, they haven't done a good job pushing into smaller markets.

Admittedly this is my anecdotal observation but i've been following yelp pretty closely since they launched and honestly up until the Google acquisition attempt, i was wondering if they were short on cash because they seem to spend so little energy on product/design/site and there seemed to be a bit of desperation in the whole 'yelpscam.com' accusations, which appear to be legitimate.
Democracy does not work. A random fluctuation in tone will be picked up by other users and the entire tone will move in that direction. Even the flagging would go the same way. You have to create a sort of elitist system (like wikipedia), where the flagging is controlled by the model citizens, and people who are not flagged for a while then become model citizens, further propagating the model citizen mode. This way, a large change in the demographic of the site would not change the demographics of the elite, and after a while, the elite would swing things back to go their way, as they have more power than the masses.