HNHacker News
TopNewBestAskShowJobs

esmi

490 karma · joined December 18, 2013

submissionscomments
esmi··on John Carmack on the Joe Rogan Experience [video]
$1/hr at 5 hours per day is ~$150/month. I have no idea what you can afford but that’s basically the price of cable these days.
esmi··on John Carmack on the Joe Rogan Experience [video]
Also, we know what a self driving car is, how to recognize it, and even measure it.
esmi··on Apple expands parts access to more independent repair businesses
Although this program is initially lunching in the US, according to the statement, it is quickly expanding to other countries so I suspect this is really about making repairs to existing units outside the US. Many places have huge iPhone install bases but not a single official apple store anywhere (Moscow is an example).

Has Apple made any official statements or prior arguments on third party repair? I’ve seen a lot of speculation and inference online but I don’t recall ever seeing an official statement from Apple on third party repair.

esmi··on Ask HN: I am looking for a C and Assembly mentor
If you’re in Mountain View and willing to pay just hire a CS tutor from Stanford. Problem solved...
esmi··on Apollo Guidance Computer switching power supply works after 50 years
I think the article I linked to didn’t require the transformer. Only that there be transfer with the switch on which implies the series connection. :) Wikipedia certainly does though and honestly, especially in power conversions, there’s not a lot of standardization in terms which is why I asked. I’m not too hung up on the definition either. I’m probably just over sensitive because all the marketing material I’m asked to review...
esmi··on Cities Are Saying ‘No’ to 5G, Citing Health, Aesthetics, and FCC Bullying
Time to video start is a bandwidth thing. Latency is the time it takes a packet to do a round trip. Typical 4G latency in the US is about 50mS and 5G is not yet faster because it’s still heavily reliant on the 4G infrastructure. It is expected to drop to 1mS as the rollout continues. This will have a significant impact on interactive content.

I think you’re conflating a few things though.

1) 5G spec improvements which do exist and are measurable today 2) your perceived value of those improvements 3) the FCC mandates in the US, which is currently being challenged

You might not want the improvements. Others may. The real issue, IMHO, is the FCC mandates. Although the challenge has a risk for technology too. If the courts agree that there is a possible health risk to RF I have no idea what kind of pandora’s box that opens.

esmi··on Apollo Guidance Computer switching power supply works after 50 years
Nice article thanks for sharing it. What definition are you using for forward converter? The definition I always use, which I thought I got from Erickson’s Fundamentals of Power Electrons, is any topology where the inductance is charged in series (as opposed to parallel like a boost or fly back) with the load. I’ve always liked this definition because it still conveys critical meaning even when engineers do trivial topology changes from the “standard” forward converter topology.
esmi··on Apollo Guidance Computer switching power supply works after 50 years
I was shocked to see the title because I thought forward converters were invented in the 70s but it turns out they were invented in the 50s with some early examples in the 20s, if one gets loose enough with the definition of “converter”.

https://pdfs.semanticscholar.org/0911/34a5dc72c5a363ec937e40...

esmi··on Cities Are Saying ‘No’ to 5G, Citing Health, Aesthetics, and FCC Bullying
Depends what you’re optimizing for. If you want improved bandwidth and latency it’s definitely not a step back. If you want larger cell sizes it is. The good news is they are not exclusive. One can have 5/4/3 G all coexist, as we do today. Unless the FCC wins it’s court case that is...
esmi··on Cities Are Saying ‘No’ to 5G, Citing Health, Aesthetics, and FCC Bullying
As chipsets improve it also means the same download should require less power from the device’s battery, if you believe the race the idle argument, which has always held in the past.
esmi··on Cities Are Saying ‘No’ to 5G, Citing Health, Aesthetics, and FCC Bullying
Some are saying ‘no’. I just hope the courts don’t overrule them. Personally I’m ok with also allowing some to say ‘yes’. 5G’s short range nature should allow this just fine. In low population density spots the economics of 5G probably won’t work out. It’s best to let communities and companies figure it out themselves rather than have the FCC blanket it everywhere.
esmi··on Cities Are Saying ‘No’ to 5G, Citing Health, Aesthetics, and FCC Bullying
Lower latency
esmi··on Cities Are Saying ‘No’ to 5G, Citing Health, Aesthetics, and FCC Bullying
Yes. It’s shorter range too.

https://electronics.howstuffworks.com/5g3.htm

esmi··on The answer to “Will you mentor me?” is no (2010)
Mid-career FAANG employee, I guess it might be ~$100/hr for a one time code review. (Incidentally, About the same rate as getting a chess GM to review your game [1]) Someone might do that if the project wasn’t too large. (Although their employment contract might not allow it.) Not cheap but maybe not totally out of reach either. Pretty questionable how useful it would be, IMHO.

[1]. https://www.reddit.com/r/chess/comments/3hgoip/typical_coach...

esmi··on 35% Faster Than The Filesystem (2017)
If that’s the case then the restrictions should’ve been given in the problem statement and the interviewer should’ve been able to answer why the candidate’s answer was rejected.
esmi··on Student hacks high school software and finds “SQL injections galore”
> where you could reach courses that you did not belong to... students got punished

Were they only viewing material? Students viewing (and perhaps learning from) extra material should be commended! :)

esmi··on Rotten Apple: Right to Repair Roundup
So if Apple rephrased this message to state, “unable to verify the health of this battery,” but still had the exact same system response, you would be happy?
esmi··on Rotten Apple: Right to Repair Roundup
> The phone knows that the battery is a genuine Apple component, because the battery cryptographically identifies as one.

But that’s not the error. The error is the health is unknown.

To be a devil’s advocate: How do you know the health of this first party battery is good? For example, maybe it wasn’t stored properly.

esmi··on Home Chip Fab
Just google hazardous waste disposal and give it your location. My experience is in the US, and here many counties have something like this:

https://www.sccgov.org/sites/rwr/hhw/Pages/What-is-Household...

esmi··on Home Chip Fab
No. When this article was previously posted there was an interesting thread on this topic.

https://news.ycombinator.com/item?id=16955549

Edit: I should mention that one can make a rectifier using household chemicals. Caution is still warranted of course.

http://www.hpfriedrichs.com/radioroom/cu-diode/rr-cu-diode.h...

esmi··on Apple Confirms $1M Reward for Anyone Who Can Hack an iPhone
Given the published corporate policy on leaking I think it’s safe to conclude they would be fired, and most likely prosecuted when possible.

“The Cupertino, California-based company said in a lengthy memo posted to its internal blog that it "caught 29 leakers," last year and noted that 12 of those were arrested. "These people not only lose their jobs, they can face extreme difficulty finding employment elsewhere," Apple added.”

https://www.bloomberg.com/amp/news/articles/2018-04-13/apple...

esmi··on Apple Confirms $1M Reward for Anyone Who Can Hack an iPhone
I think the probability is very low. Apple pays developers very well, and you're asking them to risk all future salary and their freedom. That’s going to cost a lot. Much more than $1M, I would think.
esmi··on Apple Confirms $1M Reward for Anyone Who Can Hack an iPhone
There is no question on the legality of accepting money from Apple. Accepting money from Zerodium comes with some risk for some people.

https://law.stackexchange.com/questions/502/is-it-legal-to-s...

esmi··on Apple Reports Declining Profits and Slowing Growth Again
I don’t think there has to be something else. They had $2.18 per share in profit this quarter. Presumably some of that could be used to up the dividend if they really wanted.
esmi··on Alan Cooper on the “10x” Programmer
It was probably just a question testing your ability to estimate. Of the “how many manholes are in Seattle” ilk.
esmi··on Anomalous CPU utilization on Windows build node caused by ads
Looking over my library I’d have to disagree about that. :)
esmi··on Anomalous CPU utilization on Windows build node caused by ads
If you're trying to run a non-conformat application that you are unable or unwilling to modify, then yes. It is a good thing.
esmi··on Preserving Laptop Stickers on MacBooks
Reminds me of Merit Badges. :) https://en.m.wikipedia.org/wiki/Merit_badge_(Boy_Scouts_of_A...
esmi··on A New Plan for Keeping NASA's Oldest Explorers Going
There is a lot of empty space out there.

A good amount of consideration was given to the time, direction and magnitude of various voyager flings.

https://en.m.wikipedia.org/wiki/Grand_Tour_program

esmi··on Kuo: Apple to include new scissor switch keyboard in MacBook
For that matter, why emulate a mechanical keyboard at all? If we unlearn the whole ”static” key concepts maybe there is even more to gain. Probably too late for me though. ;)
← PreviousPage 4 of 11Next →