mvirts

joined 1 year ago
[–] [email protected] 18 points 3 hours ago

If it can interfere with large aperture ground telescopes.. it would be a shame if those ground telescopes grew transmitters and started interfering back.

[–] [email protected] 4 points 19 hours ago

Til. I thought switches would decrement ttl but that makes perfect sense.

[–] [email protected] 5 points 19 hours ago (2 children)
[–] [email protected] 2 points 19 hours ago

I think the confusing part is that the rule is presented without the problem it solves.

The problem is when you take two vectors in 3d and want to find the vector orthogonal (perpendicular) to both, you have 2 valid choices.

The right hand rule is a way to pick the same one every time if you always label the two vectors you start with consistently i.e. make your thumb vector 1, pointer vector 2, then your middle finger points the direction of a perpendicular vector that matches the handedness of the hand you used.

This matters anywhere a vector cross product is used in physics, like calculating what direction an electron feels force when moving through a magnetic field. The physics doesn't change, but you'll have negatives in different places when comparing results calculated with a right handed convention (coordinate system) with a left handed convention.

When checking the handedness of your coordinate system, you point your thumb and pointer finger in the positive direction of any two dimensions then check if your middle finger points in the positive direction of the third dimension.

[–] [email protected] 4 points 20 hours ago

We're not watching the movie, we're listening to the download 🌚🌝

[–] [email protected] 1 points 3 days ago

Oof glad I don't have to do that anymore. My car on the other hand... 😐 It's probably due

[–] [email protected] 20 points 3 days ago

Imho no amount of paywall or legislation protects us from a dangerous model. It's software that will eventually become widely available.

[–] [email protected] 4 points 3 days ago (3 children)

I thought the problem was that fracking produces oil, which is processed and burnt for energy ultimately releasing excess carbon? Idk it's been a while since I've caught up with climate science :/

[–] [email protected] 10 points 4 days ago

Ya we need the spicy deets

[–] [email protected] 19 points 4 days ago (1 children)

None of the doom and gloom really matters, every human in history has lived in a time of crisis. How we handle the challenges at hand determine the challenges for those that follow, but panicking about it is a waste of energy.

[–] [email protected] 7 points 4 days ago

I enjoy red hat's paid support articles that end by saying this is untested and may not work but it was added to the knowledge base 10 years ago

[–] [email protected] 11 points 4 days ago (2 children)

As much as the hacker in me would love to do this, I sincerely hope ideas (posts... not ideas really) like this don't become fodder for the paranoia propaganda machine driving MAGA.

144
r u (lemmy.world)
 
 

Any thoughts on why cat /sys/kernel/notes gives me:

LinuxLinuXen@ XenlinuxXen2.Xenxen-3.Xen����XenXen��&����� XenXeXeXen������XeXengenericXen Xenyes

I'm beginning to look into another issue I posted about, but this struck me as odd

 

Any advice on where to go from here? This console was running dmesg -w to try and catch an intermittent crash... And this is what I got. I am using an el cheapo USB wifi adapter that I'm suspicious of.

Everything was working fine until I rebuilt nixos with Nvidia support... Now my old generations of the OS are crashing after a few minutes (display on, no response to input, keyboard lights don't respond, SysRq doesn't work)

 
3
beans (lemmy.world)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
 

#1 America's favorite

 
 

I have the unique pleasure of waiting as /usr is copied back to my Ubuntu SSD after offloading it to a sea of spinning rust to save some space. Surprise surprise Ubuntu keeps almost everything in /usr these days and it didnt boot :l but hey, at least BusyBox in initramfs has my back for times like these. Can i mount a specific ext4 directory with options? the issue seems to be my attempt at using a bind mount fails while running from the ramdisk, for whatever reason it wont mount my large data drive on /data

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