skysight-inc/HackerNews huggingface dataset:
You'd have to calculate it and your expected power usage. You probably wouldn't be able to run AC on full all day without a massive solar array. Check out how big a 100w solar array is, how many of those can fit on your RV roof, and how much power your AC uses. You'd also need a big (and not 100% efficient) inverter. Also take heat and dust inefficiencies into account.

TL;DR you're better off going in on that industrial diesel 3-phase generator rental which comes on its own trailer.
It's worth noting congressional staffers actually shape a lot of legislation. They come from diverse backgrounds, but as a rule are extremely intelligent folks.

Two of the smartest people I've ever met were congressional staffers.
Your data growing legs also sucks big time in the real world.
You look at the developer documentation for developing PowerShell cmdlets using C#, and go "look! it says you create cmdlets using C#!".

Well, here is another way to create cmdlets: https://msdn.microsoft.com/en-us/library/jj542520(v=vs.85).a...

Yes, you specify cmdlets using XML. You can point to static methods, remote CIM objects.

It may very well use .NET classes underneath. The implementation details are immaterial to how PowerShell works.

PowerShell is certainly built using .NET - and require that commands are built (or at least execute) under .NET.

However, PowerShell works with objects. An object is a collection of properties and methods that work on the object. Every command in PowerShell must be able to understand the objects, hence a common binary object format must be specified. PowerShell choses .NET objects as it's lingua franca - the PowerShell type system, although it extends it.

PowerShell specification says that commands that specifies parameters must do so with types from that type system, and if they support pipelines they must consume objects from the type system and produce objects from the type system. It is a protocol

This is very much like how sh shells specifies that commands must support arguments as an array of strings and can optionally consume byte streams from stdin and produce byte streams to stdout. It's a protocol

Does PowerShell use the same protocol as sh shells? No. Hence, the commands are different.

You do not like that they are different? fine. Don't use it.

Your pipeline illustration should have been:

PowerShell's cmdlet / object pipeline:
(PowerShell runtime | adapter(arbitraty old-school stdin/stdout) | ironpython runtime | any runtime that adheres to type system)

Unix Pipeline:
(Python runtime) | (arbitrary executable) | (PowerShell runtime) | (Ruby runtime)

Yes, PowerShell raises the bar for commands: They must meet some other criteria than string args and stdin/stdout. But just like sh shells and stdin/stdout executables, PowerShell and cmdlets build an ecosystem. It may hurt to realize that the world one knows is just one possible world, and that there may be others out there where some things may be easier and other harder.

To me, it is an opportunity to learn. Nothing quite like being shaken up a little.
I've held off commenting because I didn't want to look like I was boasting but since you expressly ask, yes, I have read it.

I did it when I was going through a bit of a difficult time and I read the whole thing out loud to myself over about two to three months. The key is to reading it out loud; that's when the magic happens. I didn't try to understand the text and I didn't read any keys to the text; I read it simply for the language experience. There are many (multi-lingual) puns in the text and in this book Joyce elevated punning to a high art.

I found it a very rewarding thing to do and I still return to some of my favourite sections. Many times during my first reading I felt shivers down my spine from the beauty of the language. And that peculiar 'front-lobe' excitement you get when perceiving just plain cleverness.

So yes, I would recommend it, but not as something to master or to 'conquer'. Try reading a few pages out loud and see how that feels. If you like it, read on. If you don't, don't. I've never persevered with books I didn't like; I don't see the point.
Comments moved to https://news.ycombinator.com/item?id=9469316.
I wrote a blog post about setting simple fsharp project without monodevelop.
You need to install fsharp using brew before read the post.

https://majecty.wordpress.com/2015/04/19/making-fsharp-proje...
The Scientists Who Want to Fix America's Guts
Very sad to hear it. You guys made an awesome service with a gorgeous UI/UX. Your recommendation engine was the best of its kind. I wish you strength through difficult time and I'm sure you'll do great in future.
To be fair, companies such as Bandcamp are making this easier every day. If you're an artist and want to be directly paid by your fans, it is becoming easier every day. However I agree that a big part of the industry is still very opaque (including services like Spotify, unfortunately)
Haskell has been used to build embedded software to great effect. As you move out of the domain of simple sequencing in embedded systems and into hard realtime systems, coordinating tasks correctly becomes very difficult. Being able to track and infer information about timing and dependencies with the type system becomes extremely useful in order to make it easier. This is a very simple intro example of an DSL built in Haskell for realtime systems[0]. This is a talk on using Haskell for robotics in particular[1].

[0] https://leepike.wordpress.com/2009/05/05/an-atomic-fibonacci...
[1] https://vimeo.com/77164337
Your comments vex me. I don't mean for this to be an attack, but clearly you ARE willing, so why would you say you aren't? We all want to do more.
I would really love to do this sometime, but I don't have 6 months of my life to contribute to such an endeavor. House/kids/job/wife/etc.

I can't describe the jealousy toward others who can simply take off and do this. If you're young and reading this, and are thinking about it -- just do it.
> 9kW solar grid on my roof in the next couple of months - capital cost is ~$40K USD

That's crazy expensive. My parents just installed 5kW last month in Australia for $10k AUD (and the government rebated them $5k AUD) so their out-of-pocket was $5k, or $1k / kW, fully installed, including the inverter.
StartSSL exists right now - and has been providing free certs for personal use for years now.

I'm curious about your requirement for IP only certs? Sure you don't "own" a domain name, but it's even less true that you "own" a specific IP address. (Well, at least for me, perhaps if your project is in the datacenter/isp/network-infrastructure space you might actually have some cintractual "ownership" of an IP address?)
Keith Packard: The Machine Architecture
For a small percentage (just enough to match inflation), I'd gladly loan an Indian middle-class family the money.
It had the exact opposite effect for me. I used Spotify for a couple of years and basically only listened to the same playlists over and over again. Only when they forced people to use Facebook to log in I stopped paying and using their service and suddenly a whole new world oppened for me. I started using SoundCloud, Jammendo and YouTube to find new music from outside of the mainstream and never looked back.

This was four years ago, in the meantime i built up my private music library mostly with Vinyl + MP3 download codes and went all the way to mimic Spotifies technical solutions and can stream my library from a Raspberry Pi at home https://jeena.net/private-music-streaming
If you don't know the API the application uses, you can't speak with it anyway. D-bus or not. If you want to talk to an entirely separate application, use a header for that application with its IPC/RPC functions defined in it. That's the same thing you'd do with or without D-bus.

All D-bus gets you is an official version of the header I spoke of. Along with so much overhead that you can't use it for any kind of media streaming, apparently. And now they want kdbus; and I definitely don't want their code in my BSD kernel.
I wrote about my self-hosted alternative https://jeena.net/private-music-streaming
A closer look at the Microsoft HoloLens hardware
I hope they have taken the safety technology from their Tesla vehicles and put it into their Tesla Energy batteries, because the thought of a 10Kwh lithium-ion battery exploding in my garage does not sound like the kind of mess I would want to be cleaning up. I couldn't see it mentioned anywhere, but presumably these batteries will be available in Australia for the same price? We always get charged more. If I can get one for $3500 AUD, count me in!
Am I missing something or are Iron Edison's batteries almost twice as expensive as Tesla's? I'm not adjusting for Tesla's reseller markup.
Indeed. But Nim is much more expressive than Python. A very nice feature of Nim is clean macros. They support regular string matching in native Perl syntax. For instance.

if line =~ rx"http[s]://(.+)":
var url = matches[0]
...

where rx is defined as:

# partial regular expressions as in Perl
template rx * (arg: expr): expr =
re(r".*?" & arg & ".*")

Another macro instance:

template repeat * (body: stmt): stmt {.immediate.} =
block:
while (true):
body

template until * (cond: expr): stmt {.immediate.} =
block:
if cond:
break

# Sample:
#
# var i=0
# repeat:
# echo i
# i += 1
# until i==7

Nice, isn't it?
Hey Sir Cmpwn, this is definitely a useful (and perhaps necessary?) project for a massive gaming phenomenon. Thanks for instigating it.

If you had an army of 100 developers, what tasks would you set them to do to improve TrueCraft?
Why the hate for self-signed certificates?

I would personally rather see those promoted and methods developed to securely bootstrap them than make us all reliant on centralised CA infrastructure. The centralised CAs are all at the mercy of their governments and hence, in my opinion, ought to be considered almost as insecure as self-signed certs.

EDIT: I think I misunderstood your comment - reading again it sounds like you are also in favour of self-signed (hopefully so).
If you buy enough solar panels and one of these, you can remove yourself from the power grid and pay 0 with conservative nighttime usage (for an American home) buy two and you don't need to be so conservative.

"enough solar panels" isn't exactly cheap though.
How 17th Century Fraud Gave Rise to Bright Orange Cheese
You're all over this thread, shitting on Tesla.

Why?

No, I don't want to hear what you're already thinking about typing. I want you to ask yourself why. I don't actually care (you're some stranger, we'll probably never talk again) -- but you should.
That is today's prices, based past demand. As demand for SSL hosting goes up, gradually replacing plaintext hosting, the price will come down.

I actually expect the price of plaintext HTTP hosting to go up a bit; partly due to reduced demand, but also due to increased risk/liability. With SSL being the "industry best practice", I expect at least a few bean counters will view the risk of private information leaks or hypothetical legal liability for enabling DDOS (similar to the "attractive nuisance" doctrine).

There will be a turbulent transition period, of course. As someone currently living at the poverty line, I have argued against the CA system many times. A SSL cert (and anual renewal) may be an insignificant cost to some people, but it is a real barrier when tha cost represents days/weeks of food. Unfortunately, none of this removes the need for encryption or the risks of plaintext. This is why I'm very excited about Let’s Encrypt; It might solve the cost problem, and it might avoid the StartSSL "no second-source" problem because it is a protocol first.

Internet use is only going up, so these transition costs are only going to go up. We can pay it now, or pay even more in the future.
I have one point:

* The reason why we have schools is that parents can go to work. Sad but true.
Charging is where the scaling problems come in. If everybody in your neighborhood plugs in their Tesla at their home at night and/or at their office during the day, it will likely cause brownouts and blackouts in areas with grid service that's already marginal for current demand. Hence Musks's interest in load-shifting technology.
What Is Data Science and Does It Matter?
I read this as a missed opportunity to say "gun manufacturers are aiding those who rape, defraud, assault, or even kill, with their manufacturing policies".
Researchers closer to being able to change blood types
StartSSL is far from simple to use.
Great idea. I can't afford to loan this amount, but I do make micro-loans regularly on kiva.org. Would love to see some loans appear there for these kinds of power systems.
It was entertaining hearing all the analogies used to put these technological issues in perspective.
The 5 pillars of visual hierarchy in Web design
I would split them up on the following tasks:

- Building a client with OpenGL

- Implementing world logic (grass growth, door logic, etc)

- Improving terrain generation

It'd be really hard to take on 100 contributors at once, though. In my open source projects, I need time to figure out how each contributor writes code and what they like to work on so I can leverage them appropriately.
... and in strange aeons, shutdown messages themselves can shutdown.
Ask HN: Are you using Twitter promoted accounts advertising?
According to twitter's self serve advertising platform most users are bidding between $2.50 and $3.00 for a new follower. How realistic are those numbers in your experience?
The key to successful Solar Living is an understanding of energy efficiency.

Suggesting running an electric oven on solar is crazy talk.
Grooveshark was always my music service of choice. It never asked me for a login before it opened its service to me (on desktop web). I felt that it never took me hostage in any way. I felt that it put its users before itself.

I will miss it.
Hindsight is 20/20. At that point in time buying Apple stok was akin to throwing your money away in the forseeable future.

I just really wish I bought 10 bitcoins when they were 40 a pop ..

Damn you, captain Hindsight!
Did anyone get an email about this from SendGrid. We have been searching and haven't found a "We got hacked, please reset your passwords".

I had to find out on HN, also on twitter they seem to be downloading it too.
If it was on a credit card, you could try contacting the bank for a refund. I don't know exactly the rules/laws about it, but I'd think only getting 1/12th of what you paid for is pretty good cause to get most of it back.
Isn't that a bit of an overreaction?

You might want to reevaluate any moral position you have where a significant basis of your values is the ability to brag about them. I would be fairly disgusted if someone said a significant amount of the reason they're so devout in their religion was so they could boast about it with their peers.
Neat:

https://github.com/IonicaBizau/github-contributions
I'm glad for the ClojureScript + Reagent combo as well, they simplify web development to its bare essentials.

It buys you an escape hatch for the incidental complexity of React.js and lets you organize your data however you like.
The production of wind and solar energy for the consumer is quickly approaching (or, depending on your tax regime, has already passed) the cost of traditional energy from the grid. This is great, and we're starting to see wind and solar become major forms of energy production. The problem with both forms of energy is that the energy generally is not generated when it is consumed, so it must be stored.

The problem with storing electricity is it is expensive. The cost of this lithium-based solution finally is cost-competitive with lead-acid. Basically, when the Tesla's Gigafactory is completed (their battery factory, being built near Reno, and expected to be finished in 2017) means that Tesla will be the lowest-cost provider of lithium batteries. Unfortunately, the size of the factory also means that they will have enormous excess capacity. Unless that capacity is utilized, their costs will eat away at their revenues.

This is their answer to this situation: they have excess battery capacity, and costs that are about 1/2 that of their nearest competitor, and there is a growing need for energy storage.

The real target of this announcement, if you ask me, is ERCOT, the regulatory body governing the Texas power grid. In general, Texas has enough power generation capacity for average load days. Unfortunately, they are running out of power plants for peak power days. Traditionally, these were natural gas-fired generators, while "normal" load was handled by hydroelectric, coal, and nuclear (because natural gas used to be more expensive than the others, and also because natural gas generators can be turned on and off over the course of minutes instead of hours or days, like the others). However, as natural gas prices have dropped, most of these power plants that used to be used for reserve power have been reallocated towards baseline power--this is why Texas has enough baseline power generation capacity, but not enough peak power capacity. ERCOT released a study late last year that indicated that it would be cost effective for ERCOT to deploy regional battery storage devices instead of building new power plants to handle these peak power periods. According to financial estimates, ERCOT's power demands will result in >$4 billion/year in revenue for Tesla. Basically, it would appear that Tesla might end up making more revenue selling these solutions to power companies than they can selling cars to consumers.

All of this will lead to economies of scale, further driving down Tesla's costs and entrenching their position as the lowest-cost provider of battery storage. All of this also means that this battery becomes an attractive device for home use, as well. Basically, this is what a lot of people are thinking about when they talk about a "smart grid" that can push power back on the grid during peak demand times.

Here's a couple of articles about the ERCOT annoucement:
http://www.texastribune.org/2014/12/15/state-law-could-short...
http://www.eenews.net/stories/1060008712
Show HN: Swiped.js – Swipe List for Your Web Application
Physicists discover quantum-mechanical monopoles
The official android app seems closed source though.
Hive doesn't use SQL. It is HiveQL and it has more than enough differences for this to be unusable for any other SQL databases.
They certainly won't be $3,500 AUD.

3,500.00 USD = 4,447.86 AUD according to xe.com right now...

That, and the factory is in the USA. I would assume shipping something that large and heavy would add to the cost in Australia.
What about the power wall for utilities. I haven't heard of any other similar offerings. That seems even more important than the home based ones. Plus open sourcing designs to the gigafactory. Hey Branson want to step up and build one on your side of the pond?
Choosing between two good options with unpredictable outcomes, my favourite rule of thumb is: choose the one that leaves you with the more options afterwards.

1. With the startup you’ll learn a lot in a short period of time. You’ll meet entrepreneurs and others who can help down the startup road.

2. The giant will look great in your CV and will lead to better positions, better salaries (and you’ll still learn a lot if you want).

It all comes down to your preferences really.
This might be a reason to move your production environment out of us-west-1 for a few years.

I wouldn't want any experiments going on around my main servers.
Dont count on it, we also get the product release lag for things like this too. Buying a Tesla Car here is at least double what it is in the US too.
Australian Catholic University Names Scholarships After Executed “Bali Nine” Duo
hahaha less than zero chance these would be in oz for that price.

Comparably the USD3500 price is pre US state sales tax. Its really $3850 (assuming 10% sales tax) after costs and converted today is AUD4891.50. Given historical price discrepancies in Australia of +40%, you are prob looking at AUD6800.
I'd throw my support behind Andy Rachleff's comment. With the added observations ...

You would be best served to interview your prospective employers. Try to ascertain where you would learn the most and have the most fun.

If you are serious about pursuing your masters, sooner rather than later, then you should bring that topic up in the interviews as well. You might find one of the companies more willing to support your on-going education. Doing a masters part-time might be a viable option.
Rigging and Animation Techniques in Spine EBook
This can't be a serious reply...
I got an email on 28th and a reminder yesterday on both of my account emails to reset my password.
Thanks for the heads up! Fixed it up.
What is the startup you run? Would like to know..
My 2200ah Lead Acid bank is still healthy after almost 20 years.

Just did some load tests yesterday.
I didn't read the GP comment as "bragging" so much as wanting to be an existence proof that it's possible to live a modern life without (directly) burning any dinosaurs.
An album on Tuesday, and before that on Saturday.

(But then I'm one of the people who grew up buying music, I've got ~1,200 albums on vinyl and ~5000 on CD as a testament to my music purchasing past...)
Probably not anything new from Asus. I just recently purchased one, and it's pure UEFI. The newest models have begun removing the options to enable "legacy mode", so you can't run legacy operating systems anymore.

This will probably become more and more common, and after the next couple years it will be extremely hard to find any good laptop that would run openBSD.
Store it underground.

In Canada, the temperatures dip well below -20C regularly, but not 10 feet underground they don't.

It takes months of sub-zero above-ground temperatures to even break the freezing mark and crack pipes that are 6 feet underground.
These things just make me more determined to stick by my music collection in mp3/ogg format, stored locally.

Until the digital rights to copy bits are globally declared we can't trust any company to provide continuous service, regardless of how well "licensed" they are. People are copying music anyway but the mafiaa make it difficult for you to create a public service or offer a public tool to do it easily, even if you're still exercising your fundamental rights to manipulate your own computer and your own storage in any way you like.
can you explain/elaborate?
too soon :)
While that' one way you can look at it, another is that hopefully this region should now be less prone to power outage related downtimes. I wonder if they are an issue currently though.
My best guess is that the playlist data (and any other relevant user data) is probably the reason the legal action even happened. What's honesty more valuable to whichever company is primarily responsible for the suit: the profits said company stands to gain now that Grooveshark is out of the way, or the behavioral user data of 10 years of internet music streaming on a front-runner service? My bet is on the later.
How sustainable is putting a large lithium battery in every home?
Where'd you get that information?

I thought the average return just from the stock market was 7%.
I just use the Sony font that comes with Linux. Also works in an xterm.
> Most of the power in the US comes from coal

No, that's not true. Most power comes from sources other than coal. Yes, coal is the largest single source but it is < 50% and decreasing every year.
I read through and couldnt help but think of a video about Perter Bellerby i watched a few years back who makes some of the most beautiful globes I've ever seen.
https://vimeo.com/103263135

I really like Domink's project but I would have liked to have seen more diy trial and error.

Watching this video of Jimmy Diresta's would have made mounting on a timber french cleat a breeze.

https://www.youtube.com/watch?v=Y65tH4iMbg4
Economy 7 power is significantly cheaper in the UK than peak power. Charging overnight in the E7 period could save money long term depending on the lifetime of the battery.