skysight-inc/HackerNews huggingface dataset:
Cosmic rays have energies in the tens to hundreds MeV range where pair production is the dominant attenuation mechanism. The probability of a photon inducing pair production in a material is roughly proportional to the square of the proton number, ergo cosmic rays don't give a shit about hydrogen (which has the smallest proton number possible). Even if the atmosphere was pure hydrogen gas at STP, the average distance traveled by a 20 MeV cosmic ray would be around 17km. http://physics.nist.gov/PhysRefData/XrayMassCoef/ElemTab/z01...

Hydrogen is pretty good at moderating neutrons down to thermal energies (eV range, ie room temperature) via elastic scattering, but gasses don't really have enough density to do a very good job. If you really want to protect something from neutrons you just coat it with boron. A mm coating of the stuff will keep out pretty much any common source of neutrons.
What it’s like to write speeches for a rude, rambling and disgraced politician
One pattern I've seen is having an OLTP database per service and an ETL process to stream each service's data to a central warehouse or OLAP database that would satisfy reporting requirements.
In onl fly in the ultra-low cost ointment is caching

To put the minimum cache in front of your API costs more than running an EC2.micro

For my projected use where my volume are going to be so low that I will fall under the Free lamda tier and the very first API tier I don't need to worry about caching but for those that do the price will start to rack up.
You haven't done the math.

Let me illustrate: We'll assume that trading returns have a binary distribution. Traders win or lose with equal probability. This is not a great model, but it's good for making ballpark estimates, because it overestimates the odds of a track record like Renaissances.

RenTec's Medallion fund has not had a down year in the past 25. The odds of this are at most 1 in 33 million, using our binary model. Survivorship bias does not begin to explain this; there have not been anything resembling 33 million hedge funds over the course of history. I think 30000 hedge funds is a fairly generous estimate.

Exercise: Suppose Medallion's returns are at least a standard deviation above zero, every year. Calculate the odds of this happening.
Woman sues startup Handy – Contractor vs. Employee labor dispute
Apple Music on iTunes is an embarrassing and confusing mess
> whereas Wealthfront portfolios typically have more like six or seven asset classes

Why does increasing the number of asset classes guarantee a higher overall return? Is there any proof or intuition? Will increasing the number to 10 asset classes guarantee that you will consistently outperform VOO or VTI or VUG?
> How is this problem solved by people using micro-services? For example, how do you related trip data and driver data for reporting purpose?

There are a couple of different ways that are obvious:

1) The act of scheduling a trip requires the trip service to get information from the driver service related to the driver for the trip (the action might be triggered from either service). While information about the driver in the driver service might change, the information about the driver that was recorded with that trip is fixed. All the information necessary to answer queries about involved drivers that are within the scope of the trip service is stored in the datastore for that service. The same thing is generally true of all services.

2) For generalized reporting, information required to support that function is sent by various services to a separate reporting service, which aggregates historical data for reporting purposes. (Even non-microservice architectures often involve this, having transactional operational databases export data into a analytical database, with different schema and capabilities, for reporting purposes, rather than using one datastore for operational and reporting use.)
Nearly all chips experienced transistor failures, rendering them useless, back in the day. Intel is the monster it is because they were the guys who first found out how to sorta "temper" chips to vastly reduce that failure rate (most failures were gross enough to be instant, back then, and Intel started with memory chips.) Because their heat treatment left no visible mark, Intel didn't patent it, but kept it as a trade secret giving them an incredible economic advantage, for many years. They all but swept the field. I've no doubt misremembered some details.
Room versus Board
In her interview, just over a year ago, my girlfriend was asked: "How many coffees are sold in London each week?".

I can't remember her derivation, but I remember her saying the interviewer was taken aback by her answer. Later that day, when she reiterated the question to me, I didn’t even know where to start. Predictably, I’d interpreted the question literally. It was demonstrating your reasoning and decomposition of the problem that was most important.

[She got the job.]
I quite consciously use "I feel like" to mark lowish confidence statements based primarily on fuzzy intuition or perception ("I feel like it's less work to move my eyes from side to side than up and down").

Contrast with "I think", which I think is more appropriate for statements with at least some deliberate thought behind them, or involve more concrete propositions ("I think Brand X hardware is unreliable", "I think it was last Wednesday").

So the author's example of "I feel like that would look better in blue" looks like a perfectly cromulent use of the phrase to me. If it's mostly a gut feeling about a subjective perception, why not use language that disclaims it as such? Apparently he feels that the disclaimer serves to shield the speaker from disagreement, but I'd have to disagree with him on that.
Yeah, this is a real concern for computer enthusiasts who heavily overclock their CPUs. Higher clock rates need more voltage to be stable, but higher voltages increase electromigration. So maybe bumping the voltage from 1.3v to 1.5v stops your computer from crashing, but it could also cause your CPU to fry itself in 2 years instead of 10.
Gresham's Law.

Fundamentally: assessing quality of complex products, including information goods, is hard.
Transportation infrastructure spending at the federal level is currently 3%.[1] You could always argue that is low due to a lack of investment, but it pales in comparison to federal entitlement spending (59%).

I'd be much more worried about the tax burden due to entitlement spending than I would about transportation infrastructure.

[1]http://www.cbpp.org/research/policy-basics-where-do-our-fede...
Modelling the deep penetration of renewable grid in the Eastern US
Did you come out ahead for all possible risk numbers or was it just for a range? Isn't there some inherent "gambling" involved in choosing a risk number?
Kind of funny that they release this after a week with 2 articles of people complaining about it on HN.

But I would venture a guess that it's been in the works for a while.
>~have a right to be there~

Rent control causes landlords to fail to realize hypothetical profits; government-subsidized sprawl wastes everyone's money.
Very nice indeed! For a bit more realism could even explore having the wave front reflect off the side of the container as it encounters the wall. Currently the wave front passes through the wall with no indication that it hit it.
Happy 2nd Epoch CoreOS Linux
Why we always do a full day onsite interview
I use it with Amazon Kinesis to funnel Kinesis data into a Slack channel after it has been parsed.
Assessing R&D Opportunities for Clean Energy Technologies
But you can’t upload those images to facebook, for example. That’s the issue. Neither twitter, Flickr, etc.
OPM hack hit over 25M people
If your industry is run by unethical people who would use your code, if developed in the open, in a way that would put your firm out of business and create orders-of-magnitude-fewer jobs than your firm would IF it kept that code proprietary and used it as a way to leapfrog the status quo... then I think you have a very good argument for your company keeping its core code under wraps.

And even once you're at the scale where you can compete head-to-head with those people, you still might want to keep things proprietary so that you can encourage ethical and aligned behavior across the industry. Because the stakes are much higher than falling asleep happy because you maintained the "purity" of the open-source-software movement.

You'd still share your changes to zlib and other non-core components, though. Because of articles exactly like this. But none of the secret sauce.

As a side note, it is not at all my intent to imply that any of this refers to the finance industry. Not at all. Nope. (But if this piques your interest, send me a message at the email in my profile.)
> Overflow detection at the CPU level is almost free.

Yes, detecting the overflow is free but reacting to it is expensive. If you do care about it, you'll fire off some kind of trap handler or at least do a data dependent branch which has a performance hit with pipelining.

It's definitely not something that should be enabled for every integer operation for all languages.
Personally, I've stuck with VMWare because the licensing costs are low enough that I'm never sufficiently motivated to spend time on a Virtualbox shakedown.
The resume would only be viewed by the targeted employer. The DEMO as it has been clearly outlined, is a DEMO of the product so people can see how it would look when you submit an application. Therefore the UI/UX is focused upon the final employer looking at the application.
For heavy users of AWS services (not just EC2, but fancy SaaS/PaaS stuff) do you ever regret being locked in to a hosting provider? Does it restrict your ability to develop locally? Have you been bitten by problems that you can't resolve because you don't own the product? Or do you pretty much just love it?
This is really bad advice, especially for young people when they can benefit the most from compound interest.
I don't think I heard him saying that incumbent renters in a city have a legally-enforceable right of any kind to their apartments.
They all seem to be light on the technical reasons though.
A formalization in Coq of the Haskell pipes library
A hybrid variant: 1,000 points/month, 100/day (yes, higher than the monthly average). Exceeding either on starts reducing the weight of total votes.

The periods should probably be rolling averages and apply to weights for CURRENT votes. Since early voting activity has undue influence, often in the first few minutes of contents' existence, retroactively deflating month-old ratings doesn't do much.

The idea is to enable reasonable inputs for a time, then start washing them out.

The deflation factor might be applied more broadly across other indicators (IP blocks, etc.).

Or ratings factored for conformance with stated site moderation goals. See my longer top-level comment.
No. Who paid for the statue of liberty? People donate monuments to public areas all the time.

But the public owns it, so yes, it should be public domain.
You mean they're not stopping not supporting its non-existence?!
That exists (at least if I understand your ask):

https://www.folioinvesting.com
Exactly, my hypothetical would universally not be allowed and is forbidden (esp. by the nondelegation doctrine). The point is that the two situations are very similar in spirit.

I never said the discretion was unlimited; rather, I think that any retroactive decision in guidance/policy/interpretation is prohibited by the constitution. The words are just semantics.

IRS tax avoidance constitutes criminal punishment.

Thanks for the downvotes, everyone.
HackHands Acquired by Pluralsight
The article has a map showing which states have already hit peak traffic; does anyone know of a per-municipality or per-county list?

I'm really curious about whether this has happened in San Francisco.
I think often fix-it-teams are allowed to do things the regulars are not allowed to do. I have seen several projects where pretty much everybody (except maybe the top managers) knew what's wrong but wasn't allowed to make changes.

Then some crack team (Accenture or "young people") comes in, gets permission to make the necessary changes and gets all the credit.
Of course. Most modern mathematicians aren't fluent with half the material in (the ~100 year-old text) Whittaker and Watson "A Course of Modern Analysis". This was standard material even 60 years ago. You can get a PhD in mathematics today without once seeing an elliptic function, because computers are good enough at numerically solving the problems they were once used to solve symbolically.
I gave two examples that applied to me. It doesn't take much imagination to relate them to the original story.
I just finished reading and was going to say the same. It's not a logical error of the algorithm. The algorithm is not concerned with maximum index value, so it's an implementation detail.
That's what's happened in the city of Toronto and surrounding areas; some of the roads are gravel but for the most part they're paved and it's a pain in the butt when you drive on pot-holed roads. There's some suburban streets that would do better to be gravel.
> Wealthfront is indeed a ripoff for the well-informed.

Do you feel that this is universally true or situation-dependent? I consider myself reasonably informed and Wealthfront appears to be a strong, if not the strongest, option for my financial situation (young, most of my net worth is in a taxable account, direct indexing, regular expected capital gains to pair with tax losses).
Product Managers Should Start Erasing Technical Debt and Stop Adding Features
You do if you're going to be meshing a much smaller gear to it. For the two to fit together, the teeth on the larger gear need to be the same size as the teeth on the smaller one.
I have worked on 3 mobile apps (not games) and my experience was very much the same. We poured our hearts into it but this app economy nonsense just doesn't work. The client probably spent over 500k on these 3 apps to afford the 4 of us to work. We spent probably over 300k of that budget in testing on the next latest platform/latest android build/bugs, and when iOS 8 came out with it's localStorage issues on webviews i thought I was going to have a heart attack...

I would say never again too but I have to admit all the while that first 50% of the time I was having a ton of fun.
I was actually just wondering if they made it better - why not create a patch and push it upstream?
What about this?

class Function<T> {
public apply(T param);
}
I would make that more clear on the site. If there's anything I don't want my 401k to be "exciting".
Craigslist Posting for $360K in Azure Credits
This has been posted with the exact same title several times already: https://hn.algolia.com/?query=optimal+road+trip+randalolson....
Trucks are taxed more already. The problem is legislatures using those tax revenues for other pork and then claiming to not have enough money for roads.
You're probably right -- I don't have the tools to argue with you -- but you know, as an algorithms person I view this whole abstraction discussion as revolving around UI. To me, UI should be intuitive and never get in your way. I'm appalled to think that I need to spend time learning what a substructural type system is in order to analyze the complexity of my algorithms. I can verify the correctness of my algorithms just fine (to the extent I need them verified, which usually isn't that much, at least not upfront), and so far I have seen zero evidence to support the claim that PFP makes developing software any cheaper. But I see more and more concepts going into abstractions and CH verification that I just can't see the justification for such mental overload standing between me and my algorithms. I'm perfectly happy with a model checker in the very rare cases I need one, and it doesn't require any substructural type systems, or even changing my choice of programming language (there are model checkers that work at the Java bytecode level and verify any program targeting the JVM regardless of the language).
The specialization isn't necessarily load-time. I think they're envisioning it as most likely being an install-time process, so that distributed code is still portable but they don't have to worry quite so hard about the latency of the specializer. Ahead-of-time specialization will still need to be possible for creating things like bootloaders and OS install media.

I think it's safe to say that the future will have a lot of fat binaries.
A useful distinction to make, and one that I knew about, but definitely have trouble keeping my prototypes prototypes - always end up adding MVP features too evening and weekend projects!
I don't expect much from Politico, but this is pretty low even for them.
The social good supported by entitlement spending is sick people not dying and poor people not starving or being homeless.

The social "good" supported by highways is geographical separation between the middle class and the poor (which largely means the white and everyone else.)
Kids Prize Pack a new subscription box for kids
Real-world worst case? The laptop I have from work that, when told to hibernate, often wakes up while in my backpack, and then waits at the 'enter full-disk encryption code' prompt (with the lid closed, in a backpack)

I don't think there's any power management or throttling due to heat active at that prompt.

Luckily, the thing isn't plugged in at such times. Now, the laptop battery is dead after an hour or so.
What are the potential instances when you want to ignore integer overflow, or the expense of ignoring it is less than handling it? I can't think of anything.
Demoscene demos. A big part of the fun is the difficulty in coding them and if source is available for everything it will be too easy.
Integrate concise and effect explanations into the relevant Wikipedia articles and you at least give future generations a good head start on understanding these things.
The problem with rusted or stubborn bolts I've encountered is the mechanical friction on the threads usually greatly exceeds the shear force (??) that the bolt can tolerate. I've snapped a head off more than once. That's a real bummer.
Slur, open source, decentralized and anonymous marketplace for data
Built-in-self-repair is a key feature in the old spinning rust hard drives and particular the new flash memory.
From my reading, it appears to hook up to a Jenkins server, potentially that you control, so it can do anything Jenkins can, which includes building windows artifacts.
OPM: 21.5 million social security numbers were stolen
I'd love to hear you list the kind of things you had to unlearn, very curious about that.
You didn't make any arguments. I can't even decipher what your position might be here - perhaps trucks should be subsidized by normal traffic because it's somehow related to sexism or communism?
Also interesting: it's like.

https://books.google.com/ngrams/graph?content=it%27s+like&ca...

Even more dramatic rise than "I feel like".
Apprenticeship Patterns: Guidance for the Aspiring Software Craftsman (2010)
Their highway network is still pretty large, though.

Texas also has an all-state-maintained system (except for toll roads, which are private, but the free service roads are still state-maintained... and Texas tends to favor adding service roads wherever possible), and their road network is the second-largest state-maintained highway network in the US. When you compare the physical size of the two states, NC really comes off as having an excessive amount of roads.
For sure! But you should have empathy for the front-end designer who may not totally understand the advantages of React over "traditional" HTML templates and directives.
Note that this is specifically OpenVPN on Windows, since the Windows installers ship with their own openssl dll (and as already said by the other commenter, a new installer was made available around the time of your post). All other platforms simply use the system library.
OPM Announces More Than 21M Affected by Second Data Breach
That's a bit of an exaggeration - there are definitely roads checkerboarded at 1 mile intervals, but most are gravel in between some paved ones.
This is still the wrong math. I'm not qualified to come up with a great model here, but given that the S&P 500 has only lost value in 5 of the last 25 years the chances of having no losses in the last 25 years are a lot greater.

I've been investing for almost a decade, was lucky enough to sit out the worst in 2008, and I haven't had a down year in 10 years myself. This outcome was mostly luck on my part.
"A massive, easily accessible data repository built on (relatively) inexpensive computer hardware for storing "big data". Unlike data marts, which are optimized for data analysis by storing only some attributes and dropping data below the level aggregation, a data lake is designed to retain all attributes, especially so when you do not yet know what the scope of data or its use will be."
Yep. Definitely!
One caveat, in short, is: Everything involved in the build must be placed under the nix store (/nix/store). Which, for some software, can cause issues: They might have a hardcoded runtime path that references /usr/lib.
Nix provides tools to resolve these assumptions, but they can still be a sticking point at times.
There is also, more or less, a unsafePerformIO that can be used. Which is discouraged. Still, for private builds the cost can be acceptable.
You aren't wrong about the sentiment, but parsimoniously the cause is that youth is callow
This is an amazing price for the quantity of reads and vids.
I spoke with the project lead for the XBox 360 chip, and I asked him: Why three cores? It's a strange number. He said it was to make Christmas.
They are still different examples and have very different implications in them.

I'm complaining about Powerade. You're complaining about Gatorade. Gatorade and Powerade might be similar in some aspects and some people may even confuse the two - but Gatorade is not Powerade.
Even if doesn't have tests at the moment that doesn't mean that it should always remain that way.
> and EUV (extreme ultraviolet lithography) were supposed to come in

I wonder if they could use electrons instead of light to etch the surface.
Wikileaks 2.0 - looks very evil for me and i unfortunately think, that people will use this for illegal stuff and not for a better world :( - interesting technology anyway!
Nobel prize winning academic research is awful in the finance space. It's based on flawed assumptions and it's results are completely useless. Either a) the person claiming this is aware and effectively lying, or b) don't know this and aren't competent.
Not in RISC-V, which despite saying it wants to be relevant to industry, is entirely lacking in extra features for integer error detection besides divide by zero.

They justify it ... with all the popular languages that silently allow these errors.
22M Affected by OPM Hack, Officials Say
Welp, you saved me some work today!

I was considering using the `ec2.py` script from Vagrant's dynamic inventory docs and then running SSH command execution over all our instances to upgrade the packages for both Ubuntu and AWS AMIs (yum), just to be safe. Guess I don't need to after all!
Well, in theory, given several other comments / complaints about things not quite working right (USB3, and the like), there is a difference between:

"is it supported?" (yes)

and

"does it work well?"