Darkassassin07

joined 2 years ago
[–] Darkassassin07 3 points 5 days ago* (last edited 5 days ago)

To act as a fuse, the tab needs to reach 660 degrees celsius, and if the breaker pops, that means the breaker acted as the fuse.

I can tell you from experience; both occur.

Such a thin piece of aluminum across 120vac super heats so quickly that it basically vaporizes, faster than the breaker can react. That metal vapor allows an arch to form still passing excess current which is what finally trips the breaker. (standard breakers take time to trip, longer than fuses in many cases; this is intentional design. GFCI breakers are a different story.) Sometimes this arc doesn't form and the breaker doesn't trip; but it usually does.

Once tripped, the vapor has time to dissipate so the short clears and the breaker can be turned back on.

None of this is advice. Someone asked about dumb pranks I've pulled in school. I'm just discussing the past; not making recommendations for the future.

[–] Darkassassin07 8 points 5 days ago (4 children)

Na, the aluminum acts as a fuse and breaks the circuit almost immediately. It makes a bright flash and a loud sound, but it's over in a second with no real harm.

That's not to say I'm recommending this at all, it's definitely a pretty stupid prank; just that it doesn't cause nearly as much damage as you might think.

Kids have lots of stupid ideas and saftey isn't exactly the first thing they consider...

At least I never heated the handles of the tool cabinets with the blow torch in shop class. Had two separate classmates pull that 'prank'.

[–] Darkassassin07 -1 points 6 days ago (7 children)

Pull the tab off of a pop can. Turn off the switch on the power bar that the teachers computer is plugged into. Unplug the computer, slip the pop can tab over the live+neutral prongs, plug it back into the still off power bar and wait.

The teacher goes to use their computer, finds it's not turning on and looks at the power bar.

Switch flips, 'BANG', scream, lights go out (breaker popped).

[–] Darkassassin07 3 points 6 days ago* (last edited 6 days ago)

FolderSync selectively syncs files/folders from my phone back to my server via ssh. Some folders are on a schedule, some monitor for changes and sync immediately; most are just one-way, some are two-way (files added to the server will sync back to the phone as well as uploading data to the server). There's even one that automatically drops files into paperless-ngx' consume folder for automatic document importing.

From there BorgBackup makes a daily backup of the data, keeping historical backups for years with absolutely incredible efficiency. I currently have 21 backups of about ~550gb each. Borg stores this in 447gb of total disc space.

[–] Darkassassin07 66 points 6 days ago (12 children)

The middle school that I went to had a ~14" crt tv hanging from a sturdy ceiling mount in every classroom.

Displayed things like school bulletins and daily morning announcements, there was a couple educational channels, and a vcr input. Every now and again there'd be some sort of presentation instead of hauling everyone into the gym for a school assembly.

Anyway; it didn't take me very long to figure out the universal remote that came with the satellite receiver at home could be programmed to the school TVs. I'd mess with the one in class, or skip classes and mess with the ones in my friends classrooms through the windows; cranking up the volume and blasting Bill Nye or the announcement channels awful elevator music. Weekends, I'd do a lap of the school turning on all the TVs I could reach from outside and maxing the volume for whoever opens on Monday, or just turning them off again so it blares at whoever turns it on next.

[–] Darkassassin07 35 points 1 week ago (1 children)

If I ever look up at the night sky and see a billboard shining down at me from space (literally or through some kind of mind/vision altering tech like nuralink) I'm becoming an anarchist.

[–] Darkassassin07 14 points 1 week ago

The rust, sure; but the rain seeping down and pooling in the frame which has no drain holes, is not. Electronics don't like sitting in pools of water long term.

[–] Darkassassin07 24 points 1 week ago

Catdar locked; fire fur-missiles!

[–] Darkassassin07 15 points 1 week ago

"you're not producing enough capital batteries"

[–] Darkassassin07 19 points 1 week ago

10 years after you hang that orange Turd we might think about it. Until then fuck off.

[–] Darkassassin07 11 points 1 week ago

Pretty sure bottom right is just saying they don't mind if you go piss in the alley around back

 

If lemmy instance 'A' defederates from instance 'B', but 'B' doesn't explicitly defederate from 'A'; can the users on instance 'B' still see the content from 'A', but not interact? Or are both sets of users prevented from seeing each others content altogether?

Eithers users could visit the domain directly ofc, I'm just curious if 'B' still retrieves the content from 'A' to show in user feeds.

 
 

A few weeks ago, I explicitly disabled it everywhere I could find within account.google.com and I've not used anything gemini since. Now I get this email and find it enabled on my devices.

By default Gemini has permissions to access everything on screen, view your contacts/messages, and can be used from the lockscreen....

I'm not all that surprised; but I'm still annoyed. Especially with the opt-out of data collection/access after it's been given access to everything.

 
 

Pad smoke. Don't breath this!

 

The banner image is completely broken:

And the server hosting the communities profile image has an expired ssl cert;

53
submitted 3 months ago* (last edited 3 months ago) by Darkassassin07 to c/main
 

Hexbear lost their domain (It's currently up for auction), and have moved to chapo.chat

Pretty sure we're defederated from hexbear, thought id pass on the new name to be re-defederated if it hasn't been already.

27
submitted 3 months ago* (last edited 3 months ago) by Darkassassin07 to c/[email protected]
 

Got a couple rpi 3Bs I'd like to use headless.

Downloaded 32bit pi os lite, flashed it to an sd card, powered on and did the initial setup (select keyboard layout, set first user+pass).

As soon as I'm dropped into a shell, I run 'sudo apt update' then 'sudo apt upgrade -y'.

Once these finish, I type 'sudo reboot'; the pi reboots, shows the rainbow splash, about a dozen lines of kernal boot messages then the video output dies and after a couple seconds the act light stops flashing too. Disconnecting power and powering it again does the same thing.

I don't think it's hardware failure as I get the same results with both 3Bs and with a 4B.

I don't know what to do from here.

I've spent the last 6 hours retrying this with both the 32 and 64 bit versions of pi os light. I can't get past the initial update/upgrade.

Anyone got any ideas? Anyone got a spare sd card, a pi 3B, and some free time to see if I'm just stupid somehow? I don't understand what I'm doing wrong.

/edit: RESULTS!

I can only assume this was a bad sd card. Tried a different card, with the exact same procedure: it finally booted after an upgrade.

Ran the update/upgrade again + a dist-upgrade and a couple more reboots. Up and running.

Excuse me while I go grab an image of that working card to file away.

15
submitted 3 months ago* (last edited 3 months ago) by Darkassassin07 to c/[email protected]
 

Got a couple rpi 3Bs I'd like to use headless.

Downloaded 32bit pi os lite, flashed it to an sd card, powered on and did the initial setup (select keyboard layout, set first user+pass).

As soon as I'm dropped into a shell, I run 'sudo apt update' then 'sudo apt upgrade -y'.

Once these finish, I type 'sudo reboot'; the pi reboots, shows the rainbow splash, about a dozen lines of kernal boot messages then the video output dies and after a couple seconds the act light stops flashing too. Disconnecting power and powering it again does the same thing.

I don't know what to do from here.

I've spent the last 6 hours retrying this with both the 32 and 64 bit versions of pi os light. I can't get past the initial update/upgrade.

/edit: RESULTS!

Bad sd card. Tried a different one and all is well.

 
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