skysight-inc/HackerNews huggingface dataset:
The Aldrin cycler requires fuel to keep it going around the sun (with periodic flybys of Earth and Mars).

In principle, each Earth flyby is used to rotate the orbit so that it goes to Mars, but the problem with the Aldrin cycler is that the required flyby distance is too close to Earth: it's smaller than Earth's radius! As a result, rocket fuel is required to give it the required extra kick.

But there are other Earth-Mars cycler trajectories! One of my projects in grad school was to investigate them, and there are some that really can keep going without spending fuel (except for minor adjustments). In particular, the so-called "Ballistic S1L1" cycler is very promising. Here's a paper about it:

McConaghy, T. Troy, Landau, Damon F., Yam, Chit Hong, and Longuski, James, M., “Notable Two-Synodic-Period Earth-Mars Cycler,” Journal of Spacecraft and Rockets, Vol. 43, No. 2, March–April 2006, pp. 456–465.
I agree there is a mental pandemic to be. Imagine 20 years out when ultraporn, AI, and VR helmets are a suitable replacement to having a relationship with real humans. I'm all for tech, but I think that tech that splits us up and disconnects us really does make us a little less human. There's another side to it that lonely people could technically be happier in such a configuration, so maybe my argument is nullified by realizing it's just a tool and it's people that are at fault. I think I just did a 180 in a single post.
Card.io partners with PayPal
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An expedition to Mars would cost a lot more, with a much smaller expected ROI. I too would love the idea of going to Mars, but, in order to build a sustainable colony, you'd need to put in place a whole lot of infrastructure to make interplanetary travel cheaper. And, right now, it's not even feasible.
Welcome to the valley, the line forms to the left. :\
March Madness - SQL Azure - sys.sql_logins
Wasn't Rose the main guy who pushed Digg over the cliff and over to Reddit with the famed v4 disaster?

Don't get me wrong, the guy did great work getting Digg to where it was, but if he was behind Digg v4 he killed it within a matter of days over a decision that no one wanted, and that puts him in a worrying position at Google if he is to work on the social aspects of the company.

Didn't he also tank publicly with Pownce? Again a service with functionality that no one really wanted, that turned up at the wrong time and was eaten alive by the likes of Twitter.

In many ways these high profile failures could be a great thing for him and Google, because the best lessons comes from those who have been there and lost it all. His acquisition could stop Google from its own "v4" moment.
Congrats on launching! I can sort of relate with trying to pull off ideas on the side in a field completely unrelated to computer science as someone who wasn't bred from a young age to program. It's definitely hard, and I commend you for putting in the hours and the effort.

As for the product: It's a neat idea. I think it'd be cool if you actually gave people on Facebook and promoters in general a small cut of some sort of revenue. It'd give users two incentives, both monetary and social (being known for discovering great undercover bands). Have users compete to be the best 'agents'.

Don't mind the haters – it's the growing trend 'round here on HN. If you're not a CS guy, you don't deserve much, basically. That's even more so for people working in business. But you've done far more than the people here can claim to have done.

Best of luck!

Edit: What made you settle for that one idea? Was it the only one you had, or did you choose it from a list of others you were entertaining? I imagine working in an industry like Finance you haven't got much time to play around with ideas left-and-right, so there's a bit more calculation in picking an idea to move forward with.
Isn't call for a price a good deal for little guys? If IBM calls for a price, they are going to get charged a huge number like 100k. If a Mom and Pop shop calls they are either going to get told to take a hike, or given a much better deal. Seems like the companies that can afford to pay more will be footing the bill.
Don't expect the trend to stop, just the other day were several HN threads regarding Y Combinator accepting people without ideas. You don't even need a track record anymore, if you can create a viral video on techcrunch to show what a hustler you are somebody will probably throw some money at you.

It's like VCs watched the movie Moneyball (or read the book) and are applying what they saw to the VC world... but in reverse.
Heh. Developer angst. Very common.

Specific comments on your rant:

1) "Ideas" types do well at Google, they reward people for starting new things, not so much finishing things.

2) "it seems like people in the industry get by based on one previous successful project." - works both ways, people also get tarred with one unsuccessful project. And like success depending on how hard the fail was it can be an influence on the rest of your career.

3) "What could he possibly be bringing to the table with Google?" - this guy has 'model googler' written all over him. Seriously. Lots of ideas, lots of ways to use existing technology tied together in fun ways. If the guy can convince two or three developers at Google to help him bring an idea to fruition he'll do well.
None of them had to take their own air.
Scientists building "cyborg snails" to gather & transmit military intelligence
Great post. Backbone made all of my code faster and simpler to maintain, too, and perhaps more importantly - easier to think about.
I tried using this in my classroom at a local college and found it to be quite useful. Students were able to send answers from their cell phones, which made it really accessible.
In cases like tablets, market timing also matters.

It's not really fair to cite poor execution if things like the supply of suitable parts, supply chains, price-points etc don't combine in the right way.
Are bonuses in finance becoming a thing of the past?
That's amazing. Sounds like there is an under served market!
Compiler flag would make code part of the projects dependent on this flag and thus make compilation process more complex in terms of choices how you compile. Developers may end up just enable this flag always, which kills the purpose of the flag. I sounds more reasonable just keeping compilation to scalac *.scala
No human being has ever settled in a place which was not previously the habitat of a billion years of successful organic life-- and we have failed to settle in a number of places which are.

To think of Mars as just the new New World is a romantic idea, but there is no basis for the comparison. Populating another world will be the most significant undertaking of humanity by orders of magnitude; to assume it can be done while it remains to be seen whether we can survive as a species on a planet with an atmosphere which is exactly what we breathe, which is made of as much water as we are, of the same phase ours is, where food grows in the ground all by itself and we are nearly completely protected from debris large and small, and with a legacy of billions of years to prove it can be done-- well, I'd ask to know your reasoning.
Hakin9 Magazine Mobile Security: Mobile Device Security
Very neat. Not at all iPad friendly. Jerky at best when you click the individual numbers and no scroll or gesture seems to get you going from one part to the next.
I'm with Tsiolkovsky:

"A planet is the cradle of mind, but one cannot live in a cradle forever."

usually cited as "Earth is the cradle of humanity, but one cannot live in a cradle forever."
Dietary cadmium may be linked with breast cancer risk
The Green Bay Packers are community-owned. Anyone can buy a piece of the Packers - you don't have to be a {m,b}illionaire.

https://en.wikipedia.org/wiki/Green_Bay_Packers#Public_compa...
Arch Linux already has the 1.0.14 release available in the community repo[1].

There are still no new patch level version of 0.7.67 available for Debian Squeeze[2] or Ubutu 10.4 LTS' 0.7.65 version[3]. EPEL for RHEL and derivatives also lack a new upstream version[4].

[1]: http://projects.archlinux.org/svntogit/community.git/commit/...

[2]: http://packages.debian.org/changelogs/pool/main/n/nginx/?C=M...

[3]: http://changelogs.ubuntu.com/changelogs/pool/universe/n/ngin...

[4]: http://dl.fedoraproject.org/pub/epel/6/x86_64/repoview/nginx...
This is all very dramatic and entertaining, and we all know you're the security expert, so why leave that comment here yet decline to elaborate?
Http://beemp3.com/index.php?q=latest zone
>He had an idea and spent years working on it, iterating and improving until Digg finally hit the big time. I think he deserves credit for that.

I don't think anyone has argued against this. He does deserve credit for this.

The problem is that he has been given too much credit. I.E. that there were far more ideas of the same caliber. I am sure this must have been tough on him, to fail at producing again like the early digg iteration.

I see the evolution of the social content site to be:

Slashdot --> Digg --> Reddit.

Each a stepping stone for the next. And I do not think this is about THE CONTENT -- I think this is about the UX you provide the users, and the control over that UX you leave to the users.

Digg evolved /.'s model. Reddit evolved Digg's.

Reddit has provided a UX which allows for a VERY fluid and quick experience with the content, given FULL control to the users on what content they see, how it is categorized, modded etc.

Kevin took money from ivestors for his own little think tank - that money was largely given to him by charismatic reputation alone.

Now, after a very short period, he isn't even pivoting, or "shooting this idea in the head to work on others" -- he is abandoning the whole freaking endeavor and taking (unknown) position in struggling social company, Google.

This doesn't leave a good taste in anyone's mouth (Sour Milk? (Sorry)) because being given $1.7MM which he gets to walk away from is a slap in the face to the people who work their asses off on good ideas and don't get any of the valley coddling as Kevin.
Mario is hard, and that's mathematically official
If it's jealousy and hatred, then it's not because of being jealous of success. A lot of developers work really, really hard on their startups for years bootstrapping, just scraping by, and being ignored by investors because they're not famous. And Kevin Rose comes along with a half-baked idea of posting pictures of the food you're eating to the Internet, and his "startup" that he's "really dedicated to" get's almost a couple million just dropped in his lap for no reason and year later just whimsically quits and gets a job at Google with no real engineering skills or anything tangible to bring to the company other than stories of what actual developers produced at Digg.
For the record, and this is just a matter of semantics and word play, but some people use the titles "idea guy" and "product guy" interchangeably. Some very good product visionary types even label themselves "idea guy".
Same here! Once we embraced eventing, things became much more simplistic.
A few months ago I ran across this: http://www.nyx.org/~awestrop/gaddis/whoswho.html, which (marginally) involves Pynchon. Quite the story.
Sparrow has bugs that cause kernel panics? I've never seen this, but... I'd argue that if userspace programs can cause KPs, that's an OSX problem, not necessarily a Sparrow problem.

Do you have a link to more info about this? I'm genuinely curious how that could happen. The only time I've ever seen OSX kernel panics was either due to faulty hardware or due to doing something silly (like messing with kernel extensions)
From a Pure Business Perspective: What you pay for a product or service should have nothing to do with their costs, or pricing to others but rather the value the product creates for you.

From an emotional level: Your concerns have to do with defending your purchase to others and your fear of looking like the fool who "overpaid" for the same product someone else got for less...

This fear should be satisfied with other messaging and tools than pricing transparency. Like, service promises, real testimonials, added value bonuses, and other tools to "feel like the cool kid" who go the best of them.
Fast follower in action! I wonder what sort of patent portfolio square has.
I agree that there are problems but there are also some good people working at GS and elsewhere - I don't want to just slam them. I'm more curious about what's causing this - what in our society allows people to create tremendous wealth while adding nothing?? It's not like greed was invented yesterday.
About HTML semantics and front-end architecture
He had an idea and spent years working on it, iterating and improving until Digg finally hit the big time

Um he had an idea, paid someone to build it (ojbyrne on HN). Promoted it on air in his role at TechTV and had it take off.

Its not like he toiled in his basement for years slaving over it. (Though he did seem to spend a lot of time on it once it became his day job, I don't want to discredit that)

You can also say that the Digg 4.0 was his "idea" and its what effectively buried Digg and started the mass exodus to Reddit (which is now very true to the original digg).
To what end, really? I don't see why a social network, which seems to be what he's talking about, should be the source or main distribution point for great content. A single , dedicated curator (whether for music or political thought or tech news or new podcasts...) will always blow away my entire friend list with a quick browse of their webpage. Even better, Google, Amazon and other tools like Goodreads have made it easier than ever to surface high-quality long-form content on any given topic.

To me, social networks are for being social. The main benefit we derive isn't information or culture - it's building and/or maintaining contact with people whose company we enjoy. As in reality, we all have to walk that line between saying too much and being a wallflower (which a solemn "one post a day" pledge veers on IMO).
Test Driven Development by Kent Beck

http://www.amazon.com/Test-Driven-Development-Kent-Beck/dp/0...
I wouldn't say none, you still need to setup your DNS settings with SPF/DKIM to support Mailgun/Sendgrid. They usually have documentation how to do that, but you need to be sure to do it. :)

Good article though... overall, if you aren't in the kind of email volume you guys are, just use Sendgrid/Mailgun. Sending email is a PITA and just pay someone else if you have the option. :)
>As further outlined in a Wall Street Journal story on the subject on Thursday, a search for “Lake Tahoe” will produce “key attributes” that Google knows about the lake, including its altitude, location, salt content and average temperature. The query “What are the 10 largest lakes in California?,” meanwhile, would yield an answer instead of just links to relevant sites.

Sounds like WolframAlpha.
Tinkerer: reStructured text based blog and static page generator
7 tips for working remotely in a coffee shop
Google doesn't have a good success based on this model though - look at Google Wave which was built under a similar premise.
http://www.artofflightmovie.com/ uses a similar effect but uses a native scrollbar.
Hopefully Red Hat, Debian, FreeBSD, etc. maintainers are reading this.
Don't you think there should be a term for the phenomenon where someone makes it more or less clear that they have said all they're going to say about something on a message board, and still people come out of the woodwork to write comments cajoling them into saying more?

I'm not complaining. It doesn't happen to me that often. Way more often, it's someone complaining about some anonymous employer or service provider and 20 people writing comments about how it's irresponsible for them not to say who it was. But it's the same kind of annoying every time.

Maybe the term ought to be in German. German works great for concepts like this.

Why did I leave the comment? Because it's hard to patch server software and people will often wait on patches until maintenance windows (advise you not do that this time) or take some time to figure out if they're affected. Especially with Apache, where oftentimes you aren't affected because the bug is in some random module most people don't use.
Motion control via webcam
blhack - co-f here - i'm sure you know what we mean to say is not let's take your computers away :) it's just, let's forget about setting up our localhosts each time we need to clone&run a friggin github project that makes you yum,brew,apt-get,npm,make,easy_install,gem and potentially mess up your environment.. we will give one in the cloud, each time you need one, and you can trash it when u'r done. or keep hacking.. cheers!
Insurance for humanity against disaster is a small ROI? Not trying to offend, but how do you define ROI of a colony on Mars?
It will probably work a lot like RMT does in every MMO, except that blizzard will tax it.
Wow, beautiful photographs. They always do a great job.

Has anyone looked closer at the A5X package in these pictures? Is that a glimpse of PC board under that can? Is there some kind of multi-die package (and not just POP)?
Tapitty - an Arduino app store
I think the problem has more to do with event bindings and how they cause references between objects in the JS runtime than it does with backbone. However we found that consistency and patterns were a simple enough solution for this problem. It just takes a bit of double checking is all when you are writing code. In comparison, I would say objective-c's retain/release patterns are a much more difficult to understand.
I am surprised that an ex-finance guy would start this type of company. The music industry is a startup death trap with more than 99% of startups failing. Of all the possible industries to make money, why would someone voluntarily join an industry with declining revenue, nasty lawyers, and a million other competitors?
I am torn between the urge to move to another news sharing site where people know who Turing is, and the thought that a little diversity can do good. I guess the latter wins, because I come here to get surprised, and learn; it doesn't happen as much when you are around people like yourself.
I'm trying to persuade people to abandon the terminology of "subjective" versus "objective" and talk instead of "individual" versus "situational" versus "transcendental". If the simple counting argument (that you cannot talk sensibly about three possibilities using only two words) does not convince, worry instead that law and science put the subjective/objective boundary in different places.

http://www.cawtech.freeserve.co.uk/prob.2.html
Top 100 Scientists on Twitter
Is it only considered malicious if it disobeys robots.txt?
Qualifying for the API Stack
PayPal Here mobile card reader: like Square, but with way more frozen accounts
That's true, and in my mind, that makes her actions more reprehensible, not less, because the consequences of becoming the subject of a professional publication are greater than those of being the subject of someone's blog.

As someone else already pointed out, his name can now be cited in the Wikipedia article on him.
If someone I didn't want to talk (and who knew it) to called me, emailed me, reached out through my friends, and called two of my employers I would consider that stalking.

How can you have the gall to say you were 'humane' after publishing his real name and current employer?
TechCrunch says $15-$30 million.
Amazon Kindle app updated for Retina display
You have basically speculated the intentions of three people, the relationships they have with one another, and the outcome of their company all from this one line. Pretty impressive. It sounds like you've watched The Social Network one too many times. Constructive criticism would be of much more value.

Further, it seems you are completely ignorant to the contributions that skilled businesspeople can make to a startup, and instead you've opted to succumbing to the played-out stereotype of all finance guys preying on the young, nubile, innocent programmer who just wants to build things and do good for the world.
Really? I strongly support this model. Supporting both Blizzard hosted servers and a local server for offline play is a huge amount of work for a teeny tiny percentage of the population. I'd much rather those resources be invested in something more worthy.

It sucks because Diablo 1 and 2 supported local play but if Diablo 3 were the first in the series I don't think anyone would be complaining.
You can sometimes emulate the model, but not always. See the other post in this thread about post 9/11 America.

The problem is that a few well positioned people who behave in a way that is not predictable, or larger forces that the model cannot anticipate (socio-economic, the weather, etc.) can distrupt the model.

Not that the model doesn't 1. Do a good job of explaining a concept and 2. Possibly fits into a larger, more complex model.
Indeed. I'm surprised so many people here are lining up to buy a game with Assassin's Creed 2 DRM built in.
Time to hack investing...so we don't have to be Goldman's "muppets" ever again
Thanks for the advice,
Good to hear from someone who has had something similar happen.
Good luck with your project!
This is branding 101. Don't fight it, learn to play the game.
Greed begets Greed.

With those who know how to exploit the system for their benefit at the top of the power structure where they can remove any and all accountability, you have a self reinforcing greed loop.

THe people at the top aren't going to kill the system, when they can do insider trading with no transparency, and no risk. They get wealthy, and if going after the financial sector would ruin their position -- then hell no - they will die to protect it.

This is exactly what we are seeing. Oligarchy.

The world is farked in its current form. And as soon as the people get TOO upset, they will spark off a war to distract and kill off the complainers.

This is what the Iran issue is - it's the backup plan. If the economy fails further, or the OWS type protests turn violent to where they are a threat to the Oligarchy, US and israel will start war with Iran to get everyone to shut-up.
We definitely appreciate the work that you and Typesafe are doing: thanks! I apologize for my brusque reaction in that tweet.

Regarding macros: it's quite clear that they simplify the job of the compiler writer: you can provide more features, more efficiently to the end user. But every feature has a cost, and increasing the end user's surface area onto the language by providing 1) macros, 2) new features enabled by macros, is very much a double edged sword. Being enabled by a compiler flag definitely helps to minimize end-user exposure to the former.

Macros in lisps can be used as a replacement for many of the features that Scala provides, including call-by-name parameters, (certain types of) implicits, and many uses of generics. If we could deprecate some of those features in Scala by replacing them with macros, then this would seem like more of a net win to me. But that doesn't seem likely: instead we will probably have all N, and Scala programmers will need to decide which of the growing list of ways to accomplish cat-skinning is best.
This reminds me of a startup mantra from the 90s: Eat like a fly, poop like an elephant.

So far there is nothing. A website with a music player and a share-on-facebook button. But the blog post sounds like Andy already turned this thing into a billion dollar company and now bows down to the mere mortals to share the wisdom he gathered. On his heroic journy to fame and riches.
It's definitely got the coolness factor; I really like how the fluent interface works out. Have to say, given the number of brittle, cobbled-together hand-written mini-parsers I've both produced and used, I wouldn't mind seeing this take off. :)