skysight-inc/HackerNews huggingface dataset:
It seems like the opposite might be true, and that batteries degrade from cycle count and not because of time. This is why they are rated in cycle counts (i.e. cycles until 80% capacity = life time of battery). Also important is the charge/discharge rate, but because the batteries are so oversized in Teslas they can discharge as low as .25C even at highway speeds which helps increase their lifetime.

source: http://batteryuniversity.com/learn/article/what_causes_lithi...
I wonder if Tesla's battery technology could be used in laptops and phones?

Sure, if you want a laptop which you can only recharge once per week.

Laptops and phones go through charge cycles much faster than cars; I'm sure Tesla has tuned their designs to maximize performance in that usage environment.
If you don't already have a collection of cards, draft tournaments are a reasonable way to try it out. Only the cards handed out during the tournament are used, so everyone i son an even playing field regardless of prior investment.
To be fair for phones you focused on: 100% charge and pocket (body) heat.

You did mention 100% and temperature being the problem generally though...
It's far less likely real technology and far more likely massively undersold capacity in a Tesla.

Laptop and phone batteries are physically close to heat sources + are used frequently to substantial degrees of discharge + frequency of charge cycles after substantial discharge.
They are rated in cycles so consumers do not need a degree in physics to understand the reality. Feel free to inspect a REAL spec sheet for a LiPo battery from a manufacturer (I think ATL provides some online)
I think the idea is if you programmed your laptop to never charge the battery past 80% or discharge it past 20%, it would degrade much more slowly, but you would also get about 40% less battery life out of a single "full" charge. Or you would need to increase the battery mass by 66% to get the same battery life. Laptops need to be light enough for a human to carry, while cars don't, and cars are generally expected to last longer than laptops, so the second solution is probably more viable for cars.
I wonder if they're particularly good at balancing the cells. When people recycle 18650s from laptops, I think it's often because one or two cells went bad while the rest remain fairly healthy.

Similarly, if you put things like batteries or capacitors in series, you typically want circuitry to balance their voltages, because a pair of 2.7V elements charged to 5.3V could really be at say, 2.75V and 2.55V, which would be unhealthy for the former cell. I think those imbalances are also caused by small differences in the individual elements' properties (capacitors are typically less precisely-tuned than resistors) which will drift further over time with wear and temperature changes and overvoltage conditions and whatnot. So that 2.75V cell would degrade very rapidly compared to the 2.55V one, probably causing even larger imbalances until it eventually fails.

Most lithium cells have basic protection circuits built-in against over/under voltage and overcurrent (e.g. shorts,) because they tend to explode if you leave those things out, but they definitely last longer if you pay attention to them as individual cells rather than a system.
did you listen to this one?
I've never seen anyone put more than one kilo before the unit before.
Ditto. When I started eating better (i.e. less) hunger immediately started affecting my mood.

Now I handle this with
- Cashews in my desk
- Frequent water and coffee breaks
- Minimum 15 minute walk outside during lunch

It's worked out pretty well for me so far.
Yes exactly. It's hard to take this guy seriously when monopoly profits were paying his bills.

Note that when he was publishing monopoly research there was no problem, it was the decision to 'celebrate' the EU fine that seems to have got him fired.
1. AWS and Azure

2. Outlook 365

3. Vimeo and Dailymotion

4. Every ISP provide DNS servers.

5. IOS

6. There are many alternative to google maps. Google didn't invented maps.

7. Noone?

8. There are many email service ready to take over.

There is nothing Google offers that can't be obtained from another provider.

And I'm not even getting into how Google has zero presence in Russia/China and its disappearance won't impact them.
>You could say that in any discussion about security.

Exactly. But no one does. Which is why you need to worry about all these guys pretending to know security.

Better to assume you are not secure when you mostly are, than assume you are secure when you definately are not. With baseband processors on mobile, and management engine on x64, all security is currently broken at the hardware level anyway. Major mindset shift needed to fix that.
Wow that sounds horrible. And I thought iOS App Store is bad (which to be fair it is)
The Surface Pro devices have a fairly discrete MicroSD slot underneath the rear stand. Given that upgrading the internal storage isn't really feasible, $250 to quadruple the storage of your $1200 device isn't all that unrealistic.
Presenting the Telsa graph with the full x axis (to demonstrate the rate of degradation is very small), and then the Leaf with a reduced x axis (to suggest it's got serious problems) doesn't really lend confidence.
I'm assuming you mean it doesn't have a license because it's not released. By that same logic we shouldn't be discussing the project because it doesn't exist.
This video is not worth 50 minutes.

tl;dr:

A bunch of stuff about typing that you probably already know and for which there are better resources.

He cites a couple studies showing that static typing doesn't improve productivity.

His own analysis of python projects on Github shows that only 3% of bugs are caused by type errors.

He acknowledges that the evidence is not good and thinks that the industry should invest in doing better studies.
Can you provide links? You clearly feel we have never seen a "real" sheet, perhaps more hand holding is order. I would appreciate the experience and would not do it without the link.
Dupe https://news.ycombinator.com/item?id=15143804
I think you know that rugby is played and known worldwide (even in the US), and that football refers to the fact that the players are on foot and in fact rugby, soccer and American football all share a common ancestor.
This will fail. On an EPIC scale. Google, google, failed with fiber. They are enormous and have mountains of cash to burn and still when they hit the cities to deploy, slammed into the granite wall of monopoly telco and cable co regulations preventing competition with right of ways etc that said telcos and cable co's put in place over the last 50 years.

The only hope I see for last mile is wireless. It's cheaper, you don't have to dig anything up, and do not have to wait for the telco's or cable co's to fix infrastructure, or grant you access to said infrastructure.

Are there hurdles with wireless, of course. But it is clearly the only option for building out last mile to the home in almost every city in america. On a cost basis, on a time basis, on any basis. The wireless technology just needs to be improved. Being able to serve more people per POP, better protocols to reduce collisions, etc.
Sure, but you lead with:

> not because of amount of use, but because of time

Which makes it seem like time is more important that heat.
sdxc has been in the spec since 2010. Anything that supports over 32GB (sdxc) can support up to 2TB with no hardware changes. I still have an S4 and use a 128GB card, but I've got a custom ROM. Most of the "up to" values for support are simply the biggest card that was available when the device was released, not the biggest the device can read. That's almost always going to be 2TB, the maximum that exFAT can support.
Jeez Louise. If that's your life, have fun and consider a sea change.

Remember in the gold rush the people that got reasonably and consistently rich were the ones selling pic axes and buckets.
Hey, at least they put the ad hominem right in the headline!
I agree with that premise. I prefer to come in at 10 and go home at 3. People who take more than 4 or 5 hours to get a week's work done are definitely "losers" and surely incompetent.

Oh wait, the article is saying that "9-5 is for the weak" and recommending longer hours? Intellectual focus of creative work can't be maintained long term for that many hours a day. People that do that are working ineffectively, or "losers" to use the parlance of the article author and his title.
I love programming in a functional-style in Python.

I create one-way functions. Every input will always give the same output.

Then I build out the test harness for that function, to unit test the function, and pathway test it. So I make sure that I have automated tests to capture every single extreme that can go into the function.

I do this for every single function created. Then I string together one function into another, and I put that into its own function. And I unit test that larger function. Then sometimes, I even put those 2nd level functions, into more functions. And I unit test that as well. In the end, I just have a function that calls a function, that calls a function, and so forth. The rabbit hole just goes deeper and deeper.

If I ever need to enhance a function, then I make my changes, add more unit tests, and re-execute it. The impact is always local, and I have full confidence in my unit tests and pathway tests.

I'm always incredibly amazed when I execute the program, and it works flawlessly, every time.
I keep iterating through the development cycle this way. And every version checked in, is fully tested, very accurate, with detailed test logs captured, and most importantly, it does not crash. It's beautiful.

With Object-oriented programming, I have to maintain an external state. This is like modifying a global variable within your object. Your methods have to load and manipulate an external variable. And then another method will modify it later.

However, I do like the organization and hiding ability of OOP. So in the end, I just make all my functions as a functional-style, one-way function. And my methods are just wrappers around it.

My main complaint about Python, is that it's just slow. I wish it had a compile to binary feature built in. Although, I get around that with my heavy unit tests, but some coding mistakes can be easily caught during compile time.
FYI: Tesla batteries are literally laptop batteries with cell balancing. No secret battery magic going on.

You could in theory crack open the pack and replace inefficient cells to get your capacity back. But, I'm assuming this is too huge a PITA for most people.
And in finance, medicine, and law…
Well Americans did (sometimes still do) use micro-micro, as in µµF.
You don't need money to use testnets, which particular tech are you interested in? Happy to point you in the relevant direction.

Heres free coins for Ethereums ropsten testnet

http://faucet.ropsten.be:3001

Can i note begging is considered bad form around most forums also. There's plenty of solutions to your problems. It just requires some effort on your part.
OK, maybe I misunderstood. To me it seems like it's comparation of incomparable though - you can't fault the vehicle that you didn't use it enough to broke it and
had its life ended just because of age. With proper care, the vehicle could go much farther than 500k km with no noticeable performance or range degradations - just like the heavily used Teslas.
Sadly I've never had a good experience with "wireless" internet. I've looked into building a WISP a few times but the cost of hardware and no guarantee of actual data throughput or quality keeps me away.

Most hardware for WISPs have back haul throughput rates advertised at 100-400 mbs, yet most end points at the customer premise will see data rates of 6 - 20mbs. Including the bad jitter, packet loss, and burstyness, and you've got something that is only good for browsing facebook.

All the hardware I am aware of still uses the old RTS/CTS methods for media access borrowed from the wifi protocol. Which works fine for 100 end points all within 100ft of each other... But stick 100 end points in a 5 miles radius all trying to get a "clear to send" ack and your in a world of hurt.

Yes I know... some tuning will go along way, but at least with the Motorola canopy family, they defaulted to supporting a 15 mile (or was it 20?) radius. And with the WISP's network admin (which is normally always the CEO's young nephew) never changing the defaults because it "just works". This puts a ton of latency on the network since everything is assuming to be waiting on hearing from the node 15 miles away (that may or may not be there). There are some newer systems out now that use TDMA for media access, but from the reviews I see, still getting more than 20mbs to a CPE is unlikely.

You best bet would be a gigabit back haul with some p2p access points covering no more than a mile or 2 each, but that means many more antennas and no place to put them. I've seen many WISPs "cover" 100+ square miles with just two access points. It just doesn't work.
Well maybe in Redmond, but it's to the point where I'd probably interpret someone showing any interest in me after hearing about my job as a red flag. That ain't normal, and it's not unique to women.
Apple Calls for FCC to Keep 'Strong, Enforceable' Net Neutrality Protections
>> We ensure that only one copy of every record is read from disk and delivered over the network by including the copy set in the header of every record copy. A simple server-side filtering scheme based on copy sets coupled with a dense copy set index guarantees that in steady state only one node in the copy set would read and delivery a copy of the record to a particular reader.

Can someone explain/expand on the above please? I've read the article a couple of times and tried to understand the above paragraph in context but I don't get it.
Well, most do manage public transport and law and order themselves.
This Pioneering $475,000 Cancer Drug Comes with a Money-Back Guarantee
Freezetab saves a tab's url, title, favicon, and the date and time the tab was saved. When you reopen a tab, the extension opens a new tab and navigates to the saved url. The extension does not actually create bookmarks, nor does it save the content of a website. All of your data is stored via chrome's local storage api.

I used the words bookmark and tab on the landing page, because they are familiar words that provide a reference point for people trying to quickly grasp what the extension does (especially non-technical people). There's always a tradeoff between precision and concision when crafting marketing materials, but I hope most people are able to understand the project's basic functionality.
Thanks for the comment. I believe the story was off-topic though, as defined in the guidelines by: "Ideological or political battle or talking points"
What percentage of car owners do this?

There is some percentage of cars crashed in the first week. It only takes a few of these to cancel out the average of extreme outliers like your car.

For reference I have never seen an odometer with more than 200 000 on it before. Even most classic rebuilds I have seen like 69 Corvettes have some high 100K count on them, some event have reset odometers.
Using Varnish for authentication and authorization: FAQ
Weird, was that there when I replied? I definitely don't remember seeing it there... Perhaps I was just rushed.

In any case thanks for the source!
Transformer: A Novel Neural Network Architecture for Language Understanding
Did you even read the article? It appears not.
Regardless, the company still wields all the power. Whereas, if you're hoping to leave on good terms, employees are still expected to put in two weeks (or at least one week's) notice they can still let you go that day.

Also, I know further in this handbook I have, that they describe that there are procedures for "building the case" as you say but then in the same paragraph it basically says: "We don't actually have to do this".

Not to mention the whole back half of the packet deals with arbitration, which is how I assume this would be dealt w/ in court.

A fired employee doesn't have the time and probably access to the lawyers to even get this started not to mention have a hope of winning.

Hell, at this company, I came in on time, fixed three issues within my first hour, then was laid off due to "cultural fit" despite two year's of stellar performance reviews and no formal reprimands or complaints to HR.
can you launch apps from there? is it reliable?
Misread your comment! Oops.

I jumped into New America's filed 990 papers and the number at a first estimate is around 20%. But I haven't added in any personal donations by Eric Schmidt. Perhaps more importantly omitted is the fact that he is the chairman emeritus of the organization.
Yyyyup, I'm coming to the same conclusion. Just gotta wait out some leases, and that'll mean a bit more stock before I split anyways.
Some need it more than others. The local news is live and doesn't need editing because the people doing the broadcast are pros. Joe Rogan is an absolute pro who has been an actor, comedian, game show host, UFC commentator in addition to being an excellent and experienced radio host. He makes a 3-hour unedited podcast seem easy, where for me I don't think I could do 10 minutes smoothly even if I had it all planned out.

I don't know if Joe Rogan always records in a sound studio, but in my experience having a good mic is like 75% of the battle, and being in the same room as your guest also helps minimize the interjections. In addition of course to having an extremely experienced and professional host to keep the flow.

For my particular podcast my co-host and I always record remotely, but each of us record our sound locally and then I edit the streams together after the fact. You wont find many top tier podcasts that don't do this because the audio dump from skype/hangouts puts a very low ceiling on your sound quality and if you don't have separate streams then editing becomes much harder.

Still though I don't want to make it sound like it is hard. It isn't. Two microphones, a couple of hours of editing in Audacity (free, open source) and you get a very good sounding podcast. You don't need a sound studio or a degree in audio engineering.
For me, it's normal to write "its mileage is 165k" - and the "km" is assumed. I just wanted our friends that use imperial units to understand, you're true it's non-standard, and it's actually the first time I wrote it like that.
Tesla Model S Hits 300k Miles with less than $11k maintenance costs
"The truth is that much of the extra effort these entrepreneurs and their employees are putting in is pointless anyway. Working beyond 56 hours in a week adds little productivity, according to a 2014 report by the Stanford economist John Pencavel. But the point may be less about productivity than about demonstrating commitment and team spirit."

My main disagreement with this type of quote is how do you account for R&D? You have to try things out, not all of them work out, you throw things away, things don't work out as expected. If you're in a true startup, money is tight, deadlines are agressive, you have to put in the time.

These types of statements discredit the "do or die" moments on which companies are built on.
heat != use

think of it more as

BADNESS = integral(abs(temp - 5), over time) * integral(abs(charge_amt - 40%), over time)
It's none of your business to scold people based on whether they watched the video or not or "read before commenting", even less to say things like "or you watched and listened but didn't think".

From the HN guidelines: "Please don't insinuate that someone hasn't read an article. "Did you even read the article? It mentions that" can be shortened to "The article mentions that.".

It's very probable and totally OK that the parent didn't watch the video. Or that they watched it but skipped around most parts. It's a 50+ minute video, and it's not required to watch it in full for participating in this HN discussion.

People often get into the discussion inspired only by the title of the submission (which serves as a topic for the thread) and not the content in the linked article or video. That's just as well -- more often their contributions, even without having seen the article, can be way more informative and intelligence than what's in the article. And yes, sometimes they can even repeat what's already said there.

I'm letting you know your mistake so that you can avoid being downvoted next time.
Mastering Bayes with R
> We've had many discussions about licensing issues, but this isn't one of them.

Why do you decide what we discuss? Since you squashed my comment about licensing, another one popped up. It means people do think licensing is important to discuss.
Neural networks meet space
I would think for most people their 18 year old self isn't anything like their 30 year old self.
I get the feeling that you didn't watch the talk. He specifically talks about the field making large decisions based mostly on dogma and that evidence should be used to make those decisions instead. He's trying to advocate the use of the scientific method as applied to language design choices.

He admits that the papers he cites are too few to make large decisions and that the analysis he does by looking at how many issues on GitHub are actually caused by type system errors (1-5%) but he's trying to steer away from dogmatism in favor of empirical evidence.
Ask HN: Most secure, indipendent, open-source tool to store Bitcoin/Ethereum?
9-6 is normal, if you count lunch. It's just 8-5 pushed one hour ahead so you can sleep in.
This was a common thing in the early days of OSX and Macs that had lots of USB ports. People would gather up all their miscellaneous flash storage devices (CF, USB, MS, etc...) and mount them all at once. OSX had a function in Disk Utility that would take all those pieces of disparate memory and turn them into a single logical disk. It was a nice way to make use of leftover old tech instead of throwing it in the garbage.
I am trying to find some non-NDA specs online for you. I saw this when I was working with these for a job and the specsheet was NDA (and I no longer work at the place this was)
"and even then it took a huge toll"

There's a real lack of awareness of an openness about the toll crazy hours extract from all too many people, not just in startups but in many larger companies as well, and the prevalence of them not just in tech but among so many professions.

A tiny fraction of society can lay back and relax off of a 2% or less interest on their investments, while so many of the rest are working until they collapse (physically or mentally), and it's considered business as usual -- and if you can't keep up you are stepped over and forgotten as the rest get on with getting ahead.
To add to the list: Take an art class. It doesn't matter if you can't draw worth a darn. Just try. Or some other class that interests you.
No doubt we talk about it that way.

Not every company is like that. LinkedIn was famously 40-hour weeks in the early days. I just started at a company that's pretty aggressively work-life balanced. We're no doubt a startup (VC funding, high growth, the whole 9 yards), but we just don't believe that 80 hour weeks translates to the best work. You are first and foremost your own caretaker, and it's probably bad if you're in the office 8-6 and working at home.

Culture matters, and it's different at every company. Don't let what's said on Twitter fool you into thinking it's the same everywhere.