skysight-inc/HackerNews huggingface dataset:
Can only afford a few 100 F-35s? You know we're planning on buying over 2000?

If you think jets are so delicate, you haven't been paying attention to the mishap rate with drones. It's not like an RC model you're controlling within sight. You're operating them at ranges where lag is significant, where control links can be jammed, where GPS is easily spoofed, and where current performance is similar to a small Cessna.

How pray tell, is a small, cheap drone going to be able to carry a high power laser or "high energy RF" weapon (whatever that is) to the altitude that modern jets operate at? And if these "high energy RF" weapons are available, why wouldn't they be deployed on fighters, which can carry heavier weapons than drones, and have more surplus electrical capacity to power them?

It's easy to come up with armchair tactics when it's all Starcraft you're drawing upon. But the military doesn't work like that. Weapons take time to design, to implement, to refine. You can't just set your factories up to build UNIT X and ZERG!
Get Traction: The Virtual Growth Event
Are there that many good ideas?
I was about to say the same thing. I'm a huge test cricket fan (only form of cricket I really like to watch). For me part of the appeal of Test Cricket (6 hours a day for 5 days) is that the Australia summer is too damn hot to do anything else. The big match (Boxing Day Test) coincides nicely with the break week many jobs have between Xmas and New Year. So the fact that you have a bunch of downtime from work combined with it being too damn hot to want to do much else makes vegging out on couch with a beer (or several) and the cricket on the box all that more appealing.

I do not know a lot about American football but I recall hearing or reading somewhere that the breaks in play make it a more popular spectator sport. As it allows for discussion and analysis of the prior event in a way more freeflowing sports do not.
So, it turns out that there's nothing to see under the sun. When pulling, what you get is a pack, and not its index. The index is created locally after retrieval. Packs don't contain the SHA-1s, so the process of creating the pack index does, in fact, compute the SHA-1s. So if a pack is altered somehow to contain objects with a different SHA-1 than the advertised one as in the parent comment, what happens is that the connectivity check that happens after all that will complain about the missing commits, trees or blobs.

In the altered repository in the parent, actually doing a commit and then cloning (non-local, because local clones cheat) will yield an error about the missing 78981922613b2afb6025042ff6bd878ac1994e85.
Maglev, huh. Does that imply the track has to have embedded coils / permanent magnets? If so, seems like that pretty much explodes the cost, no?
> I have no idea what the next major conflict might look like

Drones.
It's not a completely different issue. The F-35 can't do the things that the parent post suggested it could to avoid the cheaper interceptors, because it's too slow to avoid the engagement and too cumbersome to win a dogfight.
Let's add to this the fact that if you're under a DOS attack with DigitalOcean they disconnect your machine from the internet (making it impossible for you to log in and do log analysis, etc.), send you an email saying "figure out what's happening and stop it", and then reconnect your machine several hours later only to repeat the process practically as soon as it's back online (assuming the DOS continues). I wouldn't trust a side project on DO, let alone my business.
Probably a reference to the older CSS Zen Garden: https://en.wikipedia.org/wiki/CSS_Zen_Garden
I don't have a reference at hand but recall vaguely that all these issues were addressed in Musk's original document.
The picture depicts one car though. That would likely imply that you could send multiples though the tube, kind of like rail cars are sent along the rails.

The big thing is that these will travel much faster.
"We identified the hardware issue resulting in servers being unable to view their own drives after power-cycling as a known firmware issue that we are updating across our fleet."

Tell us which vendor shipped that firmware, so everyone else can stop buying from them.
yup, GCE gives you a "VPC" by default
Hey! Guess I miss-typed a bit, and it's too late to fix. We have two separate teams, a Networking team and a SWE-Networking team. It seems we don't have a proper "network engineer" posting up right now, but if you know someone interested they should still get in touch (http://do.co/1mf6HgB).
I use rdiff as an open source, simpler alternative to Dropbox for syncing files across a network. Dropbox uses the same library of functions as rdiff: librsync.
I guess that raises the question of why this is on the front page of HN where most people are not CMU students :)
Yep, that is almost certainly the book in question. I have a hardback copy I bought through a used bookseller ages ago. It's a must-read if you're interested in these types of things.
Sure thing. Expect an email in the morning.
> You might propose something and after 12 days of working you might discover it was mathematically not going to work

This is perfect though! In two weeks, you discovered the wrong thing. That's as valuable, IMO, as finding the right thing. The goal I find in my work is to try and fail fast... in other words, discover as quickly as possible whether or not a particular solution is feasible or not.

For truly complex issues, I have found that it often can take upwards of three failures before you discover the 'right' way to solve complex problems. You might have worked in an environment that didn't allow for failure and/or changing of dates. That definitely sucks.
Curious what Google lacks compared with Amazon and Azure, outside of having to raise default quotas?
The whole point is that in the post-accident customer's mind it is NOT an arbitrary price increase--the customer feels that they "earned it" by getting into an accident.

But all the insurance company cares about is revenue vs. expenses across the entire pool. If they can charge one customer more, it allows them to charge another customer less--like, by advertising a low fee for new signups.
Happened to me. I like drinking and (college) football, especially together, even though I can see the negative utility of both.
Every time I see this link, which is about every year or so, I spend an inordinate amount of time trying to build a "laser". It really feels possible, using a combination of diffuse/reflective to "corral" all the light into going mostly in the same direction. Would love to see if anyone has gotten close.
During design weekend someone asked the question, if Hyperloop could be used on other planets like Mars, to Elon Musk. He dismissed the idea, saying the atmosphere on the planet was already low enough that you didn't need a depressurized tube since that would just increase costs.
How is it unfair? The Syrians had plenty of time to prepare for the battle, they had Soviet weapons and advisors, their SAMs were excellent, they just got waxed by better planes, better command and control, better pilots. The F-15 and F-16, combined with the E-2 were so far better than the Mig-21bis and Mig-23 that the Syrians were flying, that the outcome was almost pre-determined once the Syrians started moving SA-6 units into the valley.

And the Super Tucano? WTH. The USAF accepted 20, temporarily, before transferring them to the Afghan AF. The USAF has no squadrons that utilize this airframe, and no intentions to. It has no survivability in a contested airspace at all.
Dropbox is playing catch up with Box in the enterprise so they're hiring salespeople like crazy in San Francisco, Australia, New York and Europe.

Why you ask? Obviously because storage will be infinite and free in the future. Google Drive for education is already completely free.

https://www.google.com/edu/products/productivity-tools/

What that means is that Dropbox is shifting from a consumer to an enterprise company. We all know for consumers they're way too expensive - 1TB for $100 is way to much free space for the average person.

The problem is they've screwed up other things. Google owned Carousel with Google Photos. Mailbox turned out to be an overly expensive acqui-hire. Luckily that doesn't affect them that much because they raised a boatload of cash and have lots of customers.

Now will Dropbox go away or die? Probably not but they'll always be behind Box when it comes to enterprise features.

It's too bad Box and Dropbox can't merge. Box has crap sync and Dropbox lacks a lot of Enterprise features Box has.
Mirror?
The photoshop operatives are following me.... They want my lucky charms (hex digits!)
MySQL is free and has been since its inception. Most developers will always choose (free + good enough) over $10K-per-installation licenses for functionally complete solutions. The same is true of PHP.
It's not often that companies nail one thing really well ... and then nail a second and third thing. Dropbox is amazing at cloud storage and syncing. Why do people expect them to develop great products beyond that?
I think 3 years ago this would have been super helpful to get to a point where I could know what I don't know. Although it will likely still be helpful in that way now.
"But there are package management systems and other stuff depending on being able to download from Github."

Rust program building, for example, seems to require that Github be up.
They talk about a vacuum tube and so on but specifically the point of the hyperloop was that it WASNT a vacuum tube
Its engine is relatively tiny for its required power output. Being a turbofan, that thing has to be seriously noisy. Forget radar stealth if you can just use acoustic radars and sensors.
Love the idea, keep up the goodwork.
ah, the javascript developer mindset applied to CLI development.

Start from scratch just because you don't want to read the manual of the right technology, convince lots of people to adopt with a cool site, spend the next 5 years updating your project to get to 10% of the 20yr old projects you ignored.

disclaimer: mostly javascript developer nowadays. but salty.
Well, how much of the money they spend on them came in the form of U.S. foreign aid in the first place?

Who are the suckers?
Look at the volume of the car, it is tiny compared to rail. Faster isn't a big help since we already have efficient air for that. Heck, we still use barges for cargo. Plus, the whole evacuated tube would play hell on cargo loading because of the added requirements. Speed buys very little given cargo is fine with traveling all night.
Disappointing headline--no robot revolutions to be seen here.
There were a couple designs at Design Weekend including MIT's design where they use passive magnetic system instead of the active magnetic systems (Maglev) found on most high speed trains. By inducing Eddie-currents, they don't have to rely on embedded coils, just permanent magnets. Supposedly the teams using the passive magnetic system say the costs are low enough currently since you save power (no high power usage) and don't need to lay out specialized coils on the track.

There are couple difference designs that will be tested at Design Weekend, including the air bearings proposed in the alpha paper along with magnets and wheels.
If only there was someone related to this project that had experience building a business based on using batteries for transportation where other people have previously thought wasn't possible ...
one engineer for a couple weeks could have just written a glue from tracks to a gdoc/gdrive spreadsheet and have a long-lived (i.e. until they shutdown gdoc/gdrive) product for absolutely free.
Get mad then use your anger to code up a storm and surpass those spoiled brats.
How to Uncomplicate Your Life
Pretty.

I had obviously expected that, but the large number of reflective surfaces [1] greatly reduces the performance. The author explained in the blog post [2] that it is a path tracing (Monte Carlo simulation of multiple random rays incrementally averaged) and probably it is hard to limit the number of bounces small while maintaining the image quality. Indeed, the source code [3] says a hard limit of 1000 bounces, not big but not that small either.

[1] Something like http://is.gd/cFDlq5

[2] http://scanlime.org/2013/04/zen-photon-garden/

[3] https://github.com/scanlime/zenphoton/blob/bea23c1/hqz/src/z...
FWIW, there were about 70 comments about this yesterday, at https://news.ycombinator.com/item?id=11021463 .
It's ugly, not bad.
Japan for one. When it comes to national defense why would one let another country dictate the defensive posture? That is suicide.

Atleast Japan is trying to actually have a viable solution:

http://www.cnn.com/videos/world/2016/01/28/japan-first-steal...
Sorry to hear that. That does sound incredibly frustrating. Send me an email at asb@digitalocean.com We can discuss how DO can support your hackerspace, and I can take a deeper look into why you got caught up in our verification process.
So just make the offer to all startups.

If your company employs less than three people then $X amount of service provided per month.
"Wrigely field in nearly 100 years old."

And it's a dump. I mean, I get why people think it's charming, but it's a pretty uncomfortable place to watch a game compared to modern stadiums.

Warning: I'm a Cardinals fan, so take that for what you will.
I mentioned in another comment that there are a couple different designs for levitation and all of them do not need a compressor system anymore. Even the air bearings can rely on on-board tanks of compressed air (even at full scale). The compressor is too expensive to implement and would require high power which isn't feasible since it adds cost and weight to the batteries.
Evernote shutting down Market, turns to software-only products
S-300s can't target an F-35 according to unclassified reports. It might be able to target them if they're hanging ordnance on their external pylons, but not if they're using internal carriage. S-400? Sure, those might be able to eventually. Depends on if their search radars can maintain a lock.

A fleet of Mig-21s, even upgraded, would be no match for F-35s. Even using Su-30s as a mini AWACs, the F-35s wouldn't be detected on radar. So the F-35s could wax the Sukhois, and then take on the blind Fishbeds with ease. It would be like what the F-22 pilots call it when they went up against 4th Gen fighters; clubbing baby seals.

Fishbeds are decent jets in terms of speed and agility, but they're not dogfighters; they have horrible visibilty, they bleed energy in turns (delta wings), and they have limited weapons carriage.
Most of these guys just read some Rust tutorials though. That has to count for something.
You had to talk to a telephone switchboard operator, and they would manually patch you in, I believe.

https://upload.wikimedia.org/wikipedia/commons/8/8e/Photogra...

http://cdn2.business2community.com/wp-content/uploads/2014/1...
The Future of the Humanities: Reading
I think the Brits have a military need as they need as the Navy's aircraft carriers can only take short takeoff aircraft, the Harrier is no more and they need something to stop the Argie's taking the Malvinas next time they're in the mood.
The Ultimate Guide to Google Analytics
India's Government Is Becoming Increasingly Antiscience
So I went and wrote another Redis client aka: Introducing StackExchange.Redis
How many technology companies are there in the world?
No we were not referring to snappy compression when we came up with the name.
Also from St. Louis. I don't agree with this. r/stlouis wouldn't shut up about it, for example, and the opinions ranged all across the board.
Great idea, but -- why limit it to one site? If bandwidth is the concern, I'd still suggest making available a small suite of sites of special interest to the homeless.
A full stack developer is only half as focused as a half stack developer
Thanks for the feedback, gealian! I've let our data team know about the problem.
Virginia Tech, 4th place team, will soon release its full pod design at www.hyperloopvt.com. Several of the top 5 teams had similar designs to the MIT pod. The teams at the top were all very close in quality.
Yep, but you are allowed to use only 16 of them. Check the configurable address range.
Curious what the heat losses are on eddy currents. I guess we'll see...
I see option autocompletion is provided as a service by the framework. What about tab-completion of paths?
Show me a "cheap" drone that can cruise above 500mph at 20k feet...
My problem is with npm and nodejs dependency, for writing CLI, which essentially means you have to install nodejs and is probably only really useful for nodejs developers.
Most people don't realize that the bulk of U.S. foreign military aid is in the form of required purchases from U.S. defense industry companies. We don't give them money for military goods to spend how they like, we give them... F-35's, maybe.

(Although Israel, one of the very largest recipients of U.S. military aid, actually has an exemption to this rule, we actually give them cash they're allowed to spend on their own local military industry. I bet they don't buy any F-35s)
True, but you could use a throwaway email that automatically forwards to you for a limited time.
I love this idea. Unfortunately, everything I tried gave me:

Sorry, I couldn't do this search.

Could not find a location matching "Nashville, Tennessee"

I'm.. so proud. :-/

One more reason (as if I need more) to be thankful I do at least have a roof over my head.
Got you covered. Extensions, extensions. Guess I should have advertised that in the site.

https://github.com/vorpaljs/vorpal-autocomplete-fs
Evacuated tunnel. And actually it is a big deal considering the speed of travel which presents new problems. Also all designs are focused on scalability of system
What other stream processing frameworks do you prefer in the place of spark streaming?Storm is pretty mature, but does not play very well with YARN last I tried. Flink looks pretty good, but is fairly new. Samza is another one. I'm curious to know if you have any specific issues with spark streaming's operational immaturity. Some things I don't like in general are:
# Backpressure algo is fairly new, but pluggable
# Does not handle stragglers very well, inspite of back pressure - this is due to treating everything as batch
# Events from the system are not very rich and cannot be customized.
# Error handling is very unclear, and does not offer a lot of flexibility

In spite of these shortcomings, it has pretty good Kafka integration, mostly uses the same paradigm as batch and plays well with hadoop infrastructure. Makes it a decent choice for many use cases
what are you looking for?
Who do you want to talk to then? Unless you're a big customer, the founder or VP of the company selling to you is probably (understandably) too busy to talk to you. If they really want your business, the sales person will escalate it appropriately. If they don't want it bad enough ... they won't get it.
No, it sounds good, because it's realistic and then you can build mitigation strategies.

I was recently involved in an outage that occurred because the sama datacenter was hit by lightning three times in a row. Everything was redundant up the wazoo and handled the first two hits just fine, but by the time the power went out for the third time within N minutes, there wasn't enough juice left in some of the batteries!

Now would it be possible to build an automated system that can withstand this? Probably. But would your time & money be better spend worrying about other failure modes? Almost certainly.
I don't think it really is. These ideas have been kicked around for a long time and several companies have attempted at solving them.

I am not talking about execution but about problems as in. Solving the problem is the execution (think cure for cancer)

I am not saying there ren't companies in YC that aren't solving big problems but it's not what they are good at noor what the angel model is good at either IMO.
Stalinist, no. Mob culture? Lost its way? Disconnected from history? yes.
As has been mentioned elsewhere in this thread, public money funds all sorts of entertainment and cultural endeavors, from operas to art museums to 5K fun runs and so on and so on.
Unusual but not incorrect. My understanding has it that the religious sense is a (very common) specialization of a more general meaning along the lines of "treating different groups the same".
I can understand that. Fortunately, Node is becoming huge in terms of CLI - there's a ton of really useful CLI apps for all kinds of things. To the point where it becomes advantageous to have NPM installed, Node developer or not. At that point, installation of a CLI app is easier and more uniform than many other methods. My 0.02.

My purpose in writing Vorpal is to make building CLIs accessible to a wider audience. While haters will hate JS, it nevertheless has a very broad use and accessibility.
LtGen Riper disagrees [0]. The drones don't need complicated control links if they've got rudimentary autopilot functionality with a few extra routines that would not be out of place in air to air missiles. Take a page from the General's playbook and control the swarm's attack state with WWII style light signals, and then laugh at how long it takes Lockheed Martin to roll out a new multimillion dollar electronic warfare module for the F35 to jam visible light comms. As drones start to take on a larger role in warfare, we'll find ourselves back at where it all started - a war of economies. The country that can crank out the most ball bearings will win.

[0] https://en.wikipedia.org/wiki/Millennium_Challenge_2002
Anyone not living and working in SV is not on a level playing field when it comes to startups. Either the service you use does it's job at a price that fits your cost structure or it doesn't.
In some way these guys are "investing" in these YC companies' future, hoping that when they grow they will stick with DO. YC has good track record so it's relatively a good bet, whereas if they did it with any rando startup, they'll probably lose tons of money (statistically 99% of the startups die). Remember this is a company not a charity.
Well I agree it's too early to say anything, that goes for both of us.

However the angel model isn't really suited well for solving complex problems it's mostly not even a execution problem (besides as I said elsewhere, that solving the problem IS the execution)

I am happy to see they are moving that way but so far I haven't seen any attempts at solving first principle problems.

I love YC don't get me wrong it just doesn't look like it's something they will ever be good at and thats totally fine.
A new Shenzhen? Poor Pakistan fishing town's horror at Chinese plans
Thanks, prawn, I believe I've reproduced the issue and we're looking into it.
Why they kept the Macbook Air logo...?
Those are the interned. I'm talking about how Japanese were treated afterwards. We don't give hiring preference to them and don't accuse companies without enough Japanese employees of racism. Try again.
MongoDB has a reputation for losing data. I'll try to find the reference. EDIT:
http://www.mongodb-is-web-scale.com/
https://aphyr.com/posts/322-call-me-maybe-mongodb-stale-read...
Hey, just give it a bit of time. If the government is really that eager to keep printing ever more money, the toilet paper problem might solve itself.
Why the Accelerator Game Is Played Out
> It has no survivability in a contested airspace at all.

Seeing as how the last time the USAF operated in seriously contested airspace was forty years ago, this is perhaps not as big a problem as it would seem.
Show HN: I created a Whatsapp bot that plays hangman with you
Yes, that's why female and black employment/compensation isn't a hot button issue at all any more.
Without looking into the source, I'd bet someone tweeted the "exploit", just to make the point that going to that page basically runs arbitrary javascript in your browser.
That's the one. Thanks.