skysight-inc/HackerNews huggingface dataset:
The Roman military manual is precise in how far, how much kit they carry and the pace of a centurian. We know this from scholars such as Judson (1888) who researched the roman military historian, Vegetius (Flavius Vegetius Renatus) [0] Vegetius wrote in detail how the Roman military organised itself: [1]

Kit weight: 30-40lbs (15+kg)
Pace: 40,000 quick step of 2.5ft at a cadence of 100 to 120 steps/min.
(a baseline number still used today in modern Infantry).
Distance: 15-20miles in seven hours
Average Speed: 1-3mi/hr depending on terrain, max by road.

Remember this is a minimum distance, moving a lot of people. What happens bumping up the distances up to say 20-30km per day? I've tried this. I bumped up the distances up to 33km/day over multiple days with 10kg weights. It's brutal. I did this to train for a 240km march in 9 days last year. You can see the type of kit we carried http://www.flickr.com/photos/bootload/4665564383/in/set-7215... and terrain traversed ~ http://www.flickr.com/photos/bootload/sets/72157623796441755... before we hit the mountains. Of the 20 that started only 3 finished without injury, including myself.

This is way beyond the ability of most ordinary people. Even 10km with no carry weight. I can say this because I average 2000km/year on foot with average weight of 1-12kg, 10km at a time. I aimed to run 40% last year but barely did 10% due to injury. I have a lot of data points. I don't see the average person doing even the suggested rate of 10km, 3 days per week at a 10km/hr. In fact the only regular people I see are other runners. This is of course anecdotal. But the figures for the weight of Australians isn't. [3]

A more interesting experimental question would be, "what is the minimum speed/distance you need to do per day to get the maximum health benifit?". At the moment it's 10K steps per day. Hence the reason I'm so active. One alternative to running I suggest is climbing steep terrain ~ http://www.flickr.com/photos/bootload/sets/72157623445003205... You can exert yourself just as much in a much shorter distance and time.

[0] http://www.britannica.com/EBchecked/topic/624659/Vegetius

[1] http://www.garyb.0catch.com/march8_suppl/march_suppl.html

[2] http://www.ibiblio.org/pub/academic/history/marshall/militar...

[3] "Overweight and obesity from childhood to adulthood: a follow-up of participants in the 1985 Australian Schools Health and Fitness Survey", pdf ~ http://www.mja.com.au/public/issues/186_09_070507/ven11183_f...
Thank you for that, I hadn't found that feature. It specifically isn't working for me with wikipedia or google maps, although it works beautifully for a couple other test cases.
Of course they have, but my point is that the situations are dissimilar. In the case of Microsoft, they are crippling their own software at the behest of another internal project, where as Apple is effectively crippling 3rd party software at the benefit of their own. This means that Microsoft is hurting itself, where as it remains to be seen if Apple is hurting itself, but it isn't doing it intentionally if so.
Why iPad 2 doesn’t have HDMI built in
I really hate this idea. Coupling the server to the language seems like a weakness in both django and rails to me, since it means deployment becomes more of a scary hurdle, with possible changes in environment between your dev server and production.

One of the strengths of PHP has always been for me that your development and production environments are pretty much the same, and deployment is just a matter of finding a way to copy the files over (and you can be as simple or clever about that part as you like).

Teaching a newbie how to run the PHP server is not that much less complicated than getting a default apache install running (especially with all the LAMP and WAMP installers out there to do it for you), and then you'd have to teach them about apache anyway before they pushed to prod.
I ain't tweeting shit, http://www.youtube.com/watch?v=YQtXHp5wXLE
Didn't everyone know how awesome Inception was going to be the moment it was announced? Though I agree with some of his points, I don't know where his evidence is coming from. Another thing to point out is that it's really hard nowadays to come up with a truly original idea that feels refreshing to people since Hollywood's gone such a long way. People should really focus more on execution.
I knew a guy that used to apply this principle to coding. He'd put a bunch of while loops counting from one to a gazillion that could be removed at a later time during "optimization".
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So the USA is executing dissidents now?
Your original reply to me had two parts.

Part 1: "It would be fairer to make a comparison with a purely online gaming distribution model like Steam."

It would not be fair to make that comparison since the two models have fundamentally different underlying fixed and marginal costs.

Part 2: "Apple and Google don't have as many realworld costs once their infrastructure is working and is in place."

Apple indeed has other significant "realworld costs", especially the development, maintenance, and future research to extend their hardware platform. Steam does not have those kinds of costs, and therefore does not need to build in those costs into their margins.
Bingo. It's in a way risk mitigation as well plus I think it makes it easily to speak the same language as your future cofounder.

Yeah, I'm starting off with bitesized problems. :)
Gogogo!!

Then share your experiences with HN!
My copy of Visual Basic 1.0 (released in 1991) runs perfectly well on Windows 7 Ultimate.
The military justice system in USA is a human rights joke: https://secure.wikimedia.org/wikipedia/en/wiki/List_of_Guant...

https://secure.wikimedia.org/wikipedia/en/wiki/Bradley_Manni...
The pirate bay hasn't actually run a tracker for a year now or so. BT uses a system called DHT (and maybe something else) that lets the peers handle the tracking themselves. The peers do need to boot strap off of something, but it's very minimal afaik.

Even when they did use a tracker it's probably more reasonable to think of it as a directory server more like LDAP or such. At their base even classic decentralized protocols like SMTP rely on DNS as a directory, IP on routing tables etc.
Chet and Eric got jobs at Valve, where they helped design a game that has an inanimate crate as one of its most memorable characters.
Plus 1 on the logo -- it looks a little fragile on the page, and hangs oddly over the page with an effect that I can only describe as resembling the "Floating Sausage" or "Finger Sausage" effect you get when you put your two fingers close together in front of your eyes.

It definitely is a MAJOR improvement though, 100%.
Actually, at very high volumes (where the non-recurring engineering cost is sufficiently amortized), the larger equivalent component is more expensive, since you are using more material to manufacture the component.

Obviously, other factors, like process yield can be a factor here as well, since a lower process yield for the smaller component would increase its price.
He's not being charged with being a dissident, he's being charged with treason.
This is nice, but more developed, cutesy ones with animals and such are all the rage. Maybe they should ask the guy at The Oatmeal comic if he'd be willing to help; he did the Tumblr one for free iirc and it's fairly awesome.
Goodnight Dune
You could also do this by contributing to an Open Source project rather than a for-profit organization.

Look up Google Summer of Code. You won't get into the program if you're not a student, but it's a great jumping-off point for finding communities that are willing to nurture newbies.
I think that mindset just generally applies to everything in life. I've been greatly humbled by my personal experiences at my previous startup. I came away with one clear though: I know shit about what I thought I knew.

Being in a room with smarter/wiser people than you can only make you move forwards. And do that enough, I hope to actually join the club someday. Heh.

And yea, SO rocks but I think a lot of newbies are taking advantage of it and getting shot down advice to wannabe hackers: do your homework first or get flamed on SO!
If you could prove that there was obvious negligence (and incompetence) while designing and implementing the network then yeah some charges should be brought in my opinion. I believe (someone correct me if I'm wrong) that engineers are can be charged if a building they designed collapses due to bad design.
The design is fantastic and I think you might be on to something here. Although there's the obvious problem (as seen from the comments) of users not being able to see what they endorse first, you will find ways to mitigate this.

Perhaps you let users tweet in the next X minutes of viewing; if they don't like it, they close the tab and there's no tweet.

In any case, good luck, and I look forward to seeing this work for you!
From http://change.gov/agenda/ethics_agenda/

"Protect Whistleblowers: Often the best source of information about waste, fraud, and abuse in government is an existing government employee committed to public integrity and willing to speak out. Such acts of courage and patriotism, which can sometimes save lives and often save taxpayer dollars, should be encouraged rather than stifled. We need to empower federal employees as watchdogs of wrongdoing and partners in performance. Barack Obama will strengthen whistleblower laws to protect federal workers who expose waste, fraud, and abuse of authority in government. Obama will ensure that federal agencies expedite the process for reviewing whistleblower claims and whistleblowers have full access to courts and due process."
Thats exactly what I am aiming to achieve. Not CTO status but enough to hack out a prototype and THEN get a CTO to mend later on.

But dare I say in most people's eyes (e.g mine), you're definitely a programmer.
What he did is not even close to whistle blowing and you know it.
Unfortunately, he's being subjected to a military justice process with a different set of rules which is largely biased or inherently unfair against people the military doesn't like.
The best argument for PHP having it's own web server is to allow novice developers an easy way to code and test their sites. I'll go out on a limb and say I don't think the lack of a built in web server has hurt PHP's adoption in the past.

And a built in web server would only be good for the novice tinkerer. I don't see entrenched PHP shops switching, nor new applications being written specifically for the build in server when Apache w/mods, nginx or LigHTTPD offer better solutions (mature solutions) that are available now.
"... the average human walking speed is 5kph (or 3.1 mph), so to walk at a 2mph pace seems suboptimal ..."

The forced march (140 cadence) is really is the realm of special forces. Moving over distance is as much about reliability. A function of carry weight X distance travelled. 5km/hr over distance, 30km+/day with 15kg pack, day after day is difficult going. A 100-120 cadence is more reachable. ~ http://www.ibiblio.org/pub/academic/history/marshall/militar...

For your average person a 140 cadence daily over 10km is probably too hard. Just maybe a 3x week might be enough. But is it enough? From the abstract: 'Endurance exercise rescues progeroid aging and induces systemic mitochondrial rejuvenation in mtDNA mutator mice'

"... The systemic mitochondrial rejuvenation through endurance exercise promises to be an effective therapeutic approach to mitigating mitochondrial dysfunction in aging and related comorbidities. ..." ~ http://www.pnas.org/content/early/2011/02/18/1019581108.abst...
Pretty sure SIPRNET IA policies were relaxed dramatically as a response to 9/11, when there was a strong belief that various agencies and groups restrictive data policies were hurting AT cooperation. Now, of course, I'm sure they've been tightened again. Kind of a damned if you do scenario.
It wouldn't seem a great leap, then, to combine swimming/rowing/bicycling for its anti-aging benefits with weight lifting for your bones.
Apple needs to make MobileMe free. Then offer their Sync Services framework (which is currently only available on the Mac) to iOS developers. Hoping this comes in iOS5.
Not sure what "replace" and "threat to erlang" means, but: for shops that already run the JVM and .NET, I think many'd be inclined to look at akka (or scala actors) and asynch workflow as available today in F# (and promised for C# 5/.NET 5). But the important thing is that erlang is no static target, development is going very strongly: read the release notes for e.g. R14A, B and B-01.Ask questions on the mailing list if you're not sure what something is, they're very friendly. (maybe someday they'll fix apache not to give out direcotry listings like this ;->

http://www.erlang.org/download/
“EVERY attack now made on WikiLeaks and Julian Assange was made against me and the release of the Pentagon Papers at the time.”

http://www.ellsberg.net/archive/public-accuracy-press-releas...
looks like new facebook profile pages, especially the top part.
Geek beauty at its finest.
If I were ever forced to tweet about a video before I watched it, I would immediately close the tab and instead send a tweet about how idiotic the video poster is for making me jump through such a ridiculous hoop.

I'm not even sure how you'd take into account someone not actually having a Twitter account in the first place. I hear tell those people call themselves "normal".

Edit: almost forgot... if this "service" ever took off, the first thing I'd do is write a plugin to disable it.
Neither are closing tags...
Gotta respect paying for a domain just to do this
Mathematical Cartoons of Larry Gonick
Those 65,000 iPad apps?

Those were developed by "Power Users".
Documents Reveal TSA Plan To Body-Scan Pedestrians, Train Passengers
I think you should totally go for it if you get the chance. I cold emailed startups and wrote very personalised (albeit long winded) cover letters. If you objective is to learn, you really have to make that point shine through because there is no greater motivation in life than the desire to learn and people can see that. So don't get hung up with the low allowance (or none) and don't get discouraged by your friends riding high in their careers, do what you need to do to get that knowledge because (cue cheese) knowledge == power.
Some of the meta-patterns in this blogpost are borderline pornographic: http://b3s23life.blogspot.com/2006_09_01_archive.html

Especially the last one.
Whistleblowing would be if the things he was leaking about were illegal activities that need to be stopped. You could sort of make an argument about war crimes for some of the leaks but it'd be a huge stretch to call it whistleblowing when he dumps a bunch of mostly-innocent cables en masse. And I love wikileaks and what they're doing. But if you're the military here, you have to throw the book at the guy.
You give up many of your civilian rights when joining the military and agree to be bound by the UCMJ, not civilian court. How can the UCMJ be biased against people the military doesn't like if it only applies to the military?

I agree his detention is horrific, but he's bound by rules he agreed to, and rules which are probably not (I assume, and in general) that biased or "inherently unfair" when viewed from the perspective of the military--which is the perspective to which they solely apply.
Perhaps you can have videos play a preview on accessing the site - allow the user to click the play button, have the video pause after ten seconds/5% of time, then pop up asking for a tweet if they want to continue watching.
It would seem odd that a company who's mission is to organize the world's information is afraid of too many applications.
Looking for internet marketing/advertising related gigs.
It only took me a minute or two to write a javascript bookmark (i.e., paste this in as browser URL) that will bypass the tweet requirement:

javascript:a=window.frames[0].document.getElementById('bg').src.split('/');a.pop();window.location.href='http://www.youtube.com/watch?v='+a.pop();

It's only been tested for the OP's site (and will only work for his particular page structure) but the point is that it could easily be adapted for any one of these.
A random sample of napster library space, 2001
Protesters hit by hail of gunfire in Libya march
As pointed out already, there is a thriving startup scene in the Boston area. I think some of the "knocks" Vivek Wadhwa makes about SV being "more failure-cherishing, more risk-taking, better capitalised" are either not good things or not really true. First off more failure-cherishing winds up meaning that more VC money is essentially wasted by people building things that have no business model or aren't even remotely useful. Failure isn't always a bad thing, but I wouldn't pride myself or the community I'm part of on being happy to fail. Second more risk-taking means the same enourmous sums of VC money wasted and it also means, in my opinion, that people are willing to overlook or can't see glaring issues with proposed businesses and invest anyway. Lastly, there are a large number of VCs here in the Boston area and I don't see that changing anytime soon.

Three other points. One, if Boston were so bad for the startup scene or tech in general then why is basically every big player here? Microsoft, google, vmware, akamai, IBM, cisco, juniper, emc, netapp, the list goes on. These companies aren't here because there isn't any talent or it's a bad place to be. Two, many of the companies on the list are companies that have been around for a while and are thriving, profitable and growing on their own. Last, and as has been pointed out, there is a huge biotech scene here, as well as a large amount of government/defense research related work (irobot, raytheon, mit, boston dynamics).
"... combine swimming/rowing/bicycling for its anti-aging benefits with weight lifting ..."

The study was looking at how endurance exercise reduced mitochondrial damage. Rowing, riding and swimming are endurance sports, so most likely yes.

"... The systemic mitochondrial rejuvenation through endurance exercise promises to be an effective therapeutic approach to mitigating mitochondrial dysfunction in aging and related comorbidities. ..." ~ http://www.pnas.org/content/early/2011/02/18/1019581108.abst...
I'd actually have liked to see him to install more applications, perhaps Microsoft Office (circa 1990) and upgraded them as he went along too. I wonder if you can do Office for Windows -> Office 2010 as well.
What does this have to do with what Manning (allegedly) did?
His website works for me.
Ask HN: Cookie based shopping cart wishlist?
I'm baking some "e-commerce" functionality into one of my projects and was considering doing wish lists based solely on cookies. There are two reasons I want to do it cookie based: 1) so the user doesn't have to register 2) this is for an affiliate program so registering on my site just for wish lists doesn't make sense and could potentially confuse things.

And I can think of more then a few reasons NOT to use cookies but I'd like your thoughts.

Perhaps a better question would be does anyone actually use wish lists?

* Note part of MY reason for wanting wish lists in the first place is to get insight on what items are desirable.
Not for themselves.
Give it some time to burn in first. Always give any new webserver time to burn in first. I'm not sure that anyone has yet successfully produced a web server that does not ship with the trivial directory traversal vulnerability on day one, for instance.

I don't say this because it's PHP particularly either. Nobody seems to be able to avoid really trivial and massive vulnerabilities in new web servers. I've lost track of the number of times I've seen it. I'd link to a search of osvdb.org for "directory traversal web server" but it seems to be down.
Does it matter whether 404 pages are ugly or not? I mean its a nice experience for a confused user, but I'd frankly rather it made suggestions as to similar urls that might exist, where possible.
How can I set its display language to English?
The Army has filed 22 new counts against suspected
WikiLeaks source Bradley Manning, among them a capital
offense for which the government said it would not seek
the death penalty.

That's the first sentence of the article.
How Small Businesses are Engaging in E-Commerce
What I still can't understand is why Google's top bar's style isn't consistent across pages.

http://maps.google.com/

https://profiles.google.com/u/0/

https://groups.google.com/
One effect is to encourage competitors to use non-iOS platforms, including webapps on iOS, or android. The consumer downside is if these are not also available for iOS.

However, if Apple quickly copies those features, or buys the company (as it often does), then its customers aren't harmed. And, in fact, Apple's apps are often leading anyway.

I think the place for a real downside is for apps that would be better or more quickly developed on the iOS platform, or would be more attractive to developers there (because more profitable or more users). These apps would appear more slowly for other platforms, if at all. Because native iOS apps are faster than webapps, and because iOS customers seem willing to pay more than Android users, this downside seems realistic - and invisible.
can add BBN Technologies
As someone who has done the entire Apple sales training course, no they don't.
So what your saying is everyone would have access to all the data?

Not exactly better in my view.
Contact info?
Is it just me or has HN taken a very sudden shift lately? It seems in just a matter of days the quality of posts has dropped rather sharply.

I'm not trying to be pompous, but this is not Reddit. Reddit already exists and is a perfect place for stuff like this (in fact someone has already posted this there).