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Woohoo! 32k achieved!!! Finally I can post some new rant without risking some sudden overshoot 😁
So putting celebrations aside for a minute, a while ago I've noticed a tingle when I stroke my finger across metal areas of my tablet, or the sides of my phone (which probably has metal near it too) while it's charging. And it's been bugging me ever since.
Now, some things to note are that it only happens when my feet are touching the ground though slippers, and that the frequency is so low that I can actually feel the tingle when I slide my finger across the material. This to me at least seems like electricity flows through me into ground, and touching the ground directly provides a path so easy for the electrons to run away that I don't feel it at all. But if I lift my feet off the ground entirely, I just get charged up and after that, nothing else happens.
So those are my ideas. The answers on the subject on the other hand.. absolute cancer. Unsurprisingly, most of them came from Apple users. Here's some of them.
https://discussions.apple.com/threa...
- I've not noticed it, but if you're concerned bring the phone to Apple for evaluation.
- Me too facing same problem.. did u visit apple care?
And one good answer at least...
- google emf sensitivity, its real. You are right, there is a small current flowing through your body, try to limit your usage. The problem with this issue is those who aren't affected (lucky ones for now) will tell you these products are 100% safe. To a degree they are, i used my ipod touch for about 2 years straight vwith virtually no symptoms. then the tingling started and it gets worse.You will get more sensitive to progressively less powerful things. I dont want to scare you but just limit your usage like i didnt do 🙂
Overall that discussion was pretty good actually, aside from "bring it to the Genius Bar, they'll know for sure and not just sell you another unit". But then there's Reddit.
https://reddit.com/r/iphone/...
- Ok, real reason is probably that the extension cord and/or outlet is probably not grounded correctly. Either that or you are using a cheap knockoff charger.
Either use a surge protector and/or use the authentic Apple Charger.
- It's not the volts that hurt you, it's the amps
- I think you are in deep love with your phone. That tingling sensation is usually referred to as "love" in human language.
- Do less acid, I would advise.
Okay, so that's the real cancer. Grounding issue sounds reasonable despite it being wrong. Grounding is actually not needed when your charging appliance doesn't have any exposed metal parts. And isolation from high voltage to low voltage side actually happens through things like routering holes into the PCB, creating spark gaps, and using galvanic isolation through things like optocouplers. As for a surge protector? I'm using them to protect my PC and my servers, but the only purpose they serve is to protect from.. you guessed it.. voltage surges, like lightning bolts hitting the grid. They don't do shit for grounding or reducing this tingle! What a fucking tool.
It's not the volts that kill, it's the amps.. yeah I'm sure that the debunking of that is easy to find. Not gonna explain that here. And the rest of it.. yeah it's just fucking cancer.
Now what's the real issue with this tingle? It's actually a Class-Y rated (i.e. kV rated) capacitor that's on the transformer of any switch-mode power supply, including phone chargers. If memory serves me right, it helps with decoupling the switching noise and so on. But as it's connected to the primary side of the transformer, if the cap is sufficiently large and you are sufficiently sensitive, it can actually cause that tingle by passing a fraction of the mains electricity into your body. It's totally safe though, as the power that these caps pass is very small. But to some, it's noticeable.
Hope you found this interesting! And thanks a lot for bringing me to 2^15. I really appreciate it ♥️
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i had this weird dream. i invented a programming language that was connected to the physical world. every time an object was instantiated during runtime, a 3D printer would print this object immediately in real time, into the void of a confined space without gravitation (like a physical stack, but not like a stack). if this object was passed objects as function parameters of its methods, these little objects were printed as well and temporarily moved into the orbit of this object, orbiting it like electrons or little moons.21
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It is said that the number of programmers doubles every five years with fresh CS, CE, and EE grads. Assuming that's true, then at any one time over half the developer community are novices in the early stages of their career.
My entire life's been spent in software and I've been in it now for about 15 years and I've seen a lot of people make alot of things and I've seen a lot of people fail at alot of things. My observation is that the doers are the major thinkers, the people that really create the things that change this industry are both the thinker doer in one person. It's very easy to take credit for the thinking the doing is more concrete. It's very easy for somebody say "oh, I thought of this three years ago" but usually when you dig a little deeper you find that the people that really did it. Were also the people that really worked through the hard intellectual problems.
Many people falsely believe that a great idea constitutes 90% of the work. However, there is a significant amount of craftsmanship required to bridge the gap between a great idea and a great product. As you evolve that great idea it changes and grows it never comes out like it starts because you learn a lot more as you get into the subtleties of it and you also find there's tremendous amount of trade-offs that you have to make.
There are certain things you can't make electrons do, certain things you can't make plastic or glass, certain things you can't make factories or robots do. and as you get into all these things, Designing a product involves juggling 5,000 different concepts, fitting them together like puzzle pieces, and exploring new ways to combine them. Every day brings new challenges and opportunities to push the boundaries of what's possible, and it's this ongoing process that is the key to successful product development. That process is the "magic"4 -
!dev
The universe is made of electrons, neutrons, Protons and morons..
You probably know that one but I still enjoy it..
Maybe this one is new to you:
2 guys walk into a bar.
P1: I’ll take a glass of H2O.
P2: I’ll take some H2O, too.
The second guy died..2 -
A few years ago I would whine, complain and rant about shitty software, which I knew could be so much better than it was. But I didn't yet write software of my own.
Now I complain about shitty libraries, API's and users. Not much has changed really. And every time I write code, I curse myself, and whoever made this trashpile I have to work with. I curse the user to the moon and beyond for using the program wrong. Funny thing is, exactly the thing I was complaining about (input validation, see earlier rant) is also exactly what no more than 5 minutes after release, a user fucked up with. The bot just does not respond at this point. But fuck these braindead retards for users.
In a few years I expect myself to be complaining about shitty compilers and buffer overflows, segmentation violations, bad coding style (don't make your program a fucking colander kthx), and so on.
Next decade I expect myself to be complaining about physics itself, and why the universe is governed by the laws it's governed by. Whoever this God is, he's a fucking retard. Funny thing is, the signs for it are already there. Electron theory! If only those electrons were positrons, then the math would check out properly. Instead of negative electrons traveling from negative to positive, we'd have positive positrons traveling from positive to negative. At least from what I understand so far, this is still a decade away after all.
The point I'm trying to make is that nothing changes, only my understanding of the world around me does, as I tumble further and further down the rabbit hole. Sometimes I wish I had taken the blue pill... Either complain about others' software or perhaps not give a shit at all. Become one of those filthy users I now despise.1 -
I wonder how many electrons have dedicated part of their existence so I can watch cat videos on YouTube...1
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In the digital world, rather than turtles, it's syntactic sugar all the way down -- at least until you reach the metal; then it's just a sea of electrons.
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I made the perfect situational joke:
I was explaining physics to a coworker and stating that the only particles that are important for everyday life are protons, electrons and neutrons.
CW:" What about neutrinos? You don't care about them?"
Me:" No, I don't. Wanna know why?"
CW:"Yes, tell me."
ME:" Because, they don't matter!"1 -
First and foremost, students should be carefully taught the logic and mentality behind programming. Most of the time I see that the introductory programming courses waste so much energy in teaching the language itself. So students kinda just get fucked cause many people end up ending the course without having actually gained the "programming perspective".
Stop teaching pointers and lambdas and even leave the object oriented stiff till later. If a student doesn't know why we use a For loop then how can they learn anything else.
I believe once that thing in your brain clicks about programming, everything goes smooth from there... kinda :P
Second of all, and this pertains mainly to the engineering and science disciplines.
We need a fundamental and strong mathematical foundation. And no I don't mean taking fucking double integrals. Teach us Linear Algebra, Graph theory, the properties of matrices, and Probability theory.
One of the things I suffered from most and regret in university is having a weak foundation in math and having to spend more time catching myself up to speed.
It's so annoying reading a paper on a new algorithm or method and feeling like an idiot because I can't understand what magic these people did.
Numerical Methods...
Ok this is more deeper, maybe a 2nd year course.
But this is something we take for granted.
Computers don't magically add and subtract and multiply.
They fuck up.
And it'll bite you in the ass if you're not even aware that the computer we all love so much isn't as perfect as we think
Some hardware knowledge.
Probably a basic embedded systems course with arduinos
just so you can get a feel for how our beautiful software actually makes those electrons go weeeeeeeee
And finally
Practice practice
Projects projects
like honestly
just give me the internet and some projects
Ill learn everything else
Projects are the best motivation
I hate this purely theoretical approach
where we memorize or read code and write these stupid exams
Test what we are capable off
make us do projects that take sleepless nights and litres of coffee
And judge our methods, documentation, team work, and output
Team work skills and tools (VCS, communicating, project management, etc.)
Documentation and Reporting
Properly
:)
maybe even with LaTeX :D
Yeah that's the gist of whats on my mind at the moment regarding an ideal computer science education
At least the foundations
The rest I leave it to the next dude.
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