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Comment: How to get my hands on live ADS-B data? (Score 1) 52

by jlar (#49454115) Attached to: How Flight Tracking Works: a Global Network of Volunteers
I would really like to get my hands on a live ADS-B feed like FlightAware and FlightRadar24 apparently have. Does anyone know what I would need to do to do that? Global data would be ideal but European or Arctic coverage would also be very interesting. But others might be interested in other areas.

Comment: Re: never heard of this jMonkeyEngine (Score 2) 184

"How much slower do you think it is okay to get work done in order to put it in a completely free software framework? How many people is it okay to have die from the additional time?"

By all means use the tool that provides the best value for you and your company. Personally I find Python much more productive than MatLab for scientific work in my field. But I guess it depends on which features you need and what kind of software you are developing.

Comment: Re:uhhh.... (Score 1) 319

by jlar (#48795515) Attached to: Several European Countries Lay Groundwork For Heavier Internet Censorhip

The above case is not about inciting violence or terrorism. Let me cite a bit of the official court press release about the conviction* (google translate, with small corrections):

"The district court writes in the judgment that those who exercise their freedom of expression - in the picture, voice or text - also have a duty to the extent possible, to avoid statements that are unjustifiably offensive to others and statements that do not contribute to any form of public debate. The judgment is that Dan Parks and gallery owner aim of the exhibition have not been to bring an informed debate, but rather to provoke. On the way they spread the pictures, they have not taken responsibility. Protection of the individual to avoid insults and slurs are therefore in this case of higher priority than freedom of expression and the right to freedom of art."

*) Official press release

Comment: Re:uhhh.... (Score 4, Insightful) 319

by jlar (#48791823) Attached to: Several European Countries Lay Groundwork For Heavier Internet Censorhip

But to be honest, freedom of speech is somewhat more limited in Europe than in the USA. But even between European countries there are som marked differences. Sweden is for example jailing (provocative) artists for hate speech while neighbouring Denmark has no such tradition (although Denmark does also have hate speech legislation). See for example Dan Park (

Not that I like Dan Parks views (even though he says that the court in Sweden is misunderstanding his art pieces). But I do believe that Sweden is on a dangerous path when they prosecute artists for hate speech (who draws the line).

Comment: Re:A step too far? (Score 1) 191

by jlar (#48598831) Attached to: Spanish Media Group Wants Gov't Help To Keep Google News In Spain

"Keep in mind that wasn't an accidental difference. In Germany, the publishers that opted out of the scheme (and kept their presence in Google News) benefited from absence of those who didn't opt out, which created a motive for all publishers to opt out in a sort of tragedy of the commons situation. The Spanish lawmakers wanted to prevent that."

The legislation is an attempt to create a law mandated news cartel:

"In economics, a cartel is an agreement between competing firms to control prices or exclude entry of a new competitor in a market. It is a formal organization of sellers or buyers that agree to fix selling prices, purchase prices, or reduce production using a variety of tactics." (Wikipedia).

If they had been succesful the consequence would be that Spanish media consumers would have to pay more for their news. Fortunately it seems like they will not be succesful and hopefully Spanish consumers can use foreign media outlets that are not part of the cartel.

Comment: Re:C is very relevant in 2014, (Score 1) 641

by jlar (#48555619) Attached to: How Relevant is C in 2014?

. As a long time C hack (still am) I concur.

Behold. A C program that has gained sentience.

You’re in a desert walking along in the sand when all of the sudden you look down, and you see a tortoise, it’s crawling toward you. You reach down, you flip the tortoise over on it's back. The tortoise lays on it's back, it's belly baking in the hot sun, beating it's legs trying to turn it'self over, but it can’t, not without your help. But you’re not helping. Why is that?

Comment: Re:"Getting whiter" (Score 2) 496

by jlar (#48427941) Attached to: As Amazon Grows In Seattle, Pay Equity For Women Declines

If you look at:

Seattle demographics

in combination with the article you will see that the city is in fact more colored now than in 2000. The original poster is cherry picking statistics to prove his/her point. Seattle is less white now than in 2000. You could say that after a prolonged browning of the city it is now whitening slightly. The long term trend is however not clear.

I am also a bit confused by the article. It seems like Amazon is only hiring from Seattle itself and not the suburbs. Otherwise they would not employ 5-7% of the city population. Is that really true or is it another one of the authors mind tricks?

Comment: Re:The right to offend ... (Score 1) 834

by jlar (#48358777) Attached to: How To End Online Harassment

OP: "We can start by stating the obvious: It is never appropriate to use slurs, metaphors, graphic negative imagery, or any other kind of language that plays on someone's gender, race/ethnicity, sexual orientation, or religion."

You seem to be missing that the OP argues that we should abstain from offending people due to for example their religious convictions. I totally agree that threats of violence should be (and is in most countries) illegal. And I also agree that women are more likely to encounter threats of violence on the net. But if your fantasy friend in the sky and you believe that it is fine to kill homosexuals, apostates or whatever you should sure as hell expect others to ridicule your religion.

Comment: Indirect tax (Score 4, Insightful) 462

by jlar (#47079497) Attached to: Fiat Chrysler CEO: Please Don't Buy Our Electric Car
This is in effect an indirect tax. Buyers of non-zero emission cars are effectively paying for the loss that automakers make on the zero emission cars. It would be much more honest to tax them directly instead of letting the auto industry act as an intermediary. But then again: taxes and honesty are probably not words that one should use in the same sentence.

Comment: Re: False premise (Score 1) 379

Could you please document that older people call in sick more often? In my country it is actually the other way around. Young people tend to call in sick more frequently than middle aged people. And I have the numbers to prove it:

Comment: Re:When is python going to support parallel proces (Score 1) 242

by jlar (#44615941) Attached to: Interviews: Q&A With Guido van Rossum
If you want to avoid the overhead of spawning new processes you might want to look into IPython Parallel:

If you use that you can keep your "engines" (= processes) running to avoid the overhead of spawning processes. But the inter-process communication will still be slow (I believe they also use pickling) unless you use MPI for communication (which limits the datatypes that you can transfer and adds some extra programming overhead).

Comment: Re:When is python going to support parallel proces (Score 1) 242

by jlar (#44611501) Attached to: Interviews: Q&A With Guido van Rossum
But spawning processes is very slow. And more importantly communication between processes means pickling and unpickling objects which in my experience can be a showstopper due to the performance penalty. I guess this is a consequence of the fact that the multiprocessing module is very general and can run on several nodes. So my question is:

Will Python get a fast parallellization module for CPU bound problems on shared memory architectures?

"When it comes to humility, I'm the greatest." -- Bullwinkle Moose