Went to go help someone with their wireless printer.

Client: my printer doesnt work.

Me: okay let me take a look at it.. (took a look at it and saw the power core wasnt plug in)
So it seem like you forgot to plug in the powercord. Do you by any chance have it with you?

Client: well it said it was a wireless printer so i didnt think i would need it. I threw it away.

Me: well yeah wireless as in you dont need a usb core to connect it to your computer you can just do it through wifi.. but it needs a power source in order to turn on..

Client: well then why did it said that its a wireless printer if it needs a cord? Thats false advertisement.

Me: Sir the printer is a wireless printer but you cant get power wireless you need a power source in order to turn on the printer.

Client: you probably dont know what youre doing.

Me: *its okay hes only 79 years old*

Long rant ahead. Should take about 2-3 minutes to read. So feel free to refill your cup of coffee and take a seat :)

It turns out that the battery in my new Nexus 6P is almost dead. Well not that I didn't expect that, the seller even explicitly put that in the product page. But it got me thinking.. why? Lithium batteries are often good for some 10k charges, meaning that they could last almost 30 years when charged every day! They'd outlive an entire generation of people!

Then I took a look at the USB-C wall charger that Huawei delivered with this thing. A 5V 3A brick. When I saw that, I immediately realized.. aah, that's why this battery crapped out after a mere 2 years.

See, while batteries are often advertised as capable of several amps (like 7A with my LiitoKala 18650 batteries that I often use in projects), that's only the current that they can safely take or deliver without blowing up. The manufacturer doesn't make this current rating with longevity in mind. It's the absolute maximum in current that a given battery can safely handle.

The longevity on the other hand directly depends on the demand that's placed on the battery. 500mA which is standard USB 2.0 rating or 1A which is standard USB 3.0 rating, no sweat. The battery will live for at least a decade of daily charges and discharges like that no problem.

But when you start shoving 3A continuous into a battery, that's when it will suffer. Imagine that your current workload is 500mA and suddenly you get shoved 6 times that work upon you. How long would you last?

Oh and not only the current is a problem, I suspect that it also overvolts the battery to maintain a constant current all the way till the end. When I charged my lithium cells with my lab bench power supply, the battery would only take a few milliamps when it got close to the supply voltage. Quick bit of knowledge: lithium cells are charged at constant current first, then when the current drops below that, it continues at constant voltage - usually 4.2 or 4.35V depending on the battery. So you'd set your lab bench power supply at 4.2V 500mA. But in that constant voltage mode, as the battery's voltage and the supply's voltage equalize, the current drops because the voltage difference becomes lower. Remember, voltage is what causes current to flow. Overvolting at the supply to stay in constant current mode all the way till the end speeds this process up but can be dangerous and requires constant monitoring of the battery voltage.

So, why does Huawei and a bunch of other manufacturers make these 3A power chargers? Well first it's because consumer demands ever more, regardless of the fact that they can just charge at 500mA for the night (8h of sleep) and charge a 4000mAh battery from 0 to 100% no problem. Secondly it's because sometimes you need that little bit of extra juice fast, like when you forgot to plug the damn thing in and you've got only 30 minutes in the morning to pour some charge into it.

But people use those damn fucking things even when they go to bed, making that 3A torture a fucking standard process!! And then they complain that their batteries go to shit?!

Hopefully this now made you realize that the fast charger shouldn't be used as a regular charger ^^

so here's a little story:

yesterday i decided to buy a shiny new gtx 1070 since my pc is getting very old, i come back from the store and i realize that my case is slightly too small to fit the card.
'No bg deal' i think to myself, i run out to buy a saw and after some work i made some space to fit the card in by sawing off some hard drive bays i was not using. I plug in the card, i wire up the pc, and it does not boot: after some asking around (i have never really built a pc before), i relaize i need more power to the card and wire a second PCIE connector. low and behold, i power of the pc and it works! Once logged into windows tho, i realize none of my HHDs are detected...

To cut a long story short, i **did not think to unplug the hard drives before i started sawing off bits of the case and the vibrations killed both of them!** i lost ~1TB of data in the process: a lot of it was games and programs, but i have yet to tally up the damage.

I am completely bamboozled by what the fuck just happened, i think i'll go hand myself in to the nearest police station for crimes against technology... or maybe a mental clinic would be best?...

PS: my system drive was spared since its an SSD, but i may as well re-install windows at this point since i lost 90% of my software

I was working for a startup that needed to update 300 machines that had just come from the factory. We had to open all 300 boxes and update them one at a time. I made a simple script that would run a folder full of shell scripts then keep track of what it ran so it would not run the same script twice. It made it so we could just plug the machines into the internet, they would query some server, download my program, and run it. It saved me from having to ssh into every machine and run commands. Well the head programmer guy saw what I did and implemented it as the main program that would update the entire machine. I didn't program anything into it to verify updates, the shell scripts did not return any indication of success or failure, and I made it in less than 3 hours. It was supposed to be a temporary program to be used for those 300 machines only, but ended up sticking around for 2 years.

Does linux suck? Imho, Yes.
A lot of the people bash windows regarding automatic restarts, updates, bsod etc.
I may be unusually lucky, but the last bsod I saw was in 2014 because of a faulty synaptics driver.

I've really tried to use linux to see what the hype is all about. Quite frankly, it sucked. The first time it wiped out all my data, I realized the value of backups. Hence I do not have a single pic of my school now, thanks to complicated ubuntu mounting.
Next is driver support. When I plug in a device, I expect it to work. I don't want to spend a day googling for drivers.
Why the fuck would I want to use a black terminal which gives me a headache. Am I in 1980? Which sadistic asshole designed vim ?
I have seen linux developers who claim to be linux experts and love linux. They take so long to do simple shit. For god's sake don't tell me there are GUI versions of linux available. I'd rather work in windows 95.
Why in the world would anyone want to use ls to see the contents of a directory! It is seriously so fucking unproductive.
I can't just download a software, click next a couple of times, and be done. No no no. I've to do sudo apt get update. Then try to find the fucking package. And if all goes well, there's always the dependency issue which is going to bite me in the ass. If google and stackoverflow go down, most linux devs will die a cruel death.

Fuck you linux.
I'm not saying windows 10 is the best, but at least I don't have to crawl through shit to use it. If you don't like automatic updates, disable it you moron. It is easier than renaming a damn file in linux.

Today at work I saw 2 tech guys (Russians) that tried to fix an audio system at my hospital clinic.

The PL-3.5 cable was unable to transfer any sound to the speakers from the secretary PC.

So they tried to plug it into one of their phones, to rule out the possibility that it is because of the PC headphones plug.

(The speaker volume currently is on *maximum* btw)

1st guy said "Let's play something nice and relaxing, so the patients (mostly old people) won't get an heart attack"
The 2nd ask "So what should I search in YouTube?"
Then the 1st said "Metallica"

Now I will defend USB-C untill my face turns blue and my mouth turns into a thunderbolt 3 port but fuck me some people complain about the stupidest shit when it comes to adapters...

Saw someone on twitter complaining because to get an ethernet port on his MBP... Only to notice he had purchased a USB-C to USB-A just so he can plug in a USB-A to ethernet...

Now maybe I'm thinking too logical but if you wanted an ethernet port, surely you would buy a USB-C to ethernet port and not seperate things to do the same job and then complain about it?

I can justify complaining about USB-C to auxiliary to some extent but for fuck sake I swear some people just get off on complaining about self inflicted issues -,-

Installing a GPU is easy - except if it doesn't fit in the case. I had to saw off 3cm of the upper, 5.25" bay. Just removing the bay cage entirely was not an option because I still need that for my DVD drive.

My bow saw wouldn't have enough space, and the cage is riveted. So despite terrible ergonomics, I used the metal saw of a fucking Swiss Army knife for 24cm of cut length through 1mm steel. Then I filed off the cuts so that I won't injure myself later.

However, I was too lazy to take out the mobo and shit, so I protected it professionally against potential metal dust - with a towel.

saw this girl's post LinkedIn. a typical influencer like format post which had nothing of value and instead was a post asking for help with a question (basically it consisted of a android doc link for an android component followed by some hashtags like #6969daysofcode #day69 #xyz and "has anyone used it before?share resources")

then i noticed 2 things:
1. she works in my previous company in the same position that i did , and started a month after i left. so basically she is my replacement.
2. i and my senior (who also has left that org) had created the exact same component that she mentioned in the post, and we had created that component as an awesome plug and play component that would handle multiple usecases with decent documentation

now am having this urge to dm her the exact classname in the code to see and learn 😂😂

or i can play this uno reverse card and write a blog on that component writing another influencer like post: "in my previous company, we created this awesome component and here is how it works..." her boss (our TL) also follows me and what i know of him, he will be tagging her, pinging on slack, and discussing it in the DSA the next morning 😂

!rant

Well not really a CS teacher but it did happen to me during my uni days.

I had joined a marketing class as an elective since my Information Systems degree did have some business related stuff thrown in there.

One day the lecturer strutted in all smug and told us to take out a sheet of paper and we were gonna have a surprise test.

He has the test on a pen drive , apparently it was just 2 open ended type questions he was gonna plug into the class pc and send it to the projector screen.

To this day i have no clue what the hell he did, but that smug bastard managed to delete the test permanently 😂

He popped it in and we saw a few files there he selected them and was about to either drag to desktop or open them , the cursor changed to the wait hourglass , he right clicked and refreshed as if it would
Do anything but .... PooF.... Bye test 👋

He took the pen drive out and plugged it in again, but couldn't find the test file

He scowled then checked the desktop and recycle bin, nope 👎

He took his pen drive and silently walked out....

The other IT students and I were in stitches 😂

Another Mojave Post...

Apple added 4 new apps, all of which cannot be removed (oh boy am I off to a great start). I saw the new home app and thought "if your stuck here I might as well attempt to put you to some use" so I opened it to try and maybe add my smart plug or something, but it told me I need an iOS device to add accessories...

Why the fuck is there any functionality that is locked behind iOS especially something as integral to the core functionality of the app like adding a fucking device to an app that manages them.

On a side note apparently news is bugged for me and I cannot find it it the launchpad so that's slightly less bloat.

I've been waiting to pull the plug and move to a new company for some time now... The only reason I haven't done it yet is, I don't like too many variables. I am waiting to pay off a loan before going job hunting, but saw an ad this morning which tickled me a little bit... So, I'm job hunting after 1156 again... Only this time, I am in no rush (not to temp fate) and will try and find a better job