qjkxbmwvz

joined 1 year ago
[–] qjkxbmwvz@startrek.website 6 points 4 months ago (1 children)

Remind me again, what color was Obama's scandalous suit?

[–] qjkxbmwvz@startrek.website 2 points 4 months ago

Ah, right, that's why it looked familiar


pretty sure I've seen articles from there posted in one of The Onion communities in lemmy.

[–] qjkxbmwvz@startrek.website 24 points 4 months ago (1 children)

I'm not mad at the huge amount I pay in taxes. I'm mad about what I get in return.

[–] qjkxbmwvz@startrek.website 14 points 4 months ago (2 children)

Only disagreement from me (in California, USA) is that I wouldn't diminish the actions of our neighbors to the north by calling them "petty" in this instance. Nothing petty about standing up to a bully in whatever capacity you can. 🫡

[–] qjkxbmwvz@startrek.website 14 points 4 months ago (2 children)

WireGuard, and an external HDD. Run at a remote location for off-site backup.

I do this with a raspberry pi 3 at the in-laws. I copied the data over locally before setting it up, and after that it's just nightly incremental rsync, which is fine even over my slow (35Mbps) upload.

[–] qjkxbmwvz@startrek.website 3 points 4 months ago

You can turn it off, at least for ext4: https://lwn.net/Articles/784041/

[–] qjkxbmwvz@startrek.website 19 points 4 months ago* (last edited 4 months ago) (3 children)

Although you can use case insensitive filesystems with Linux, and case sensitive filesystems with macOS. I believe the case sensitivity is a function of the specific filesystem


but yeah, practically, the root for Linux is always case sensitive, and APFS ~~ain't~~ is only if you ask it to be ( https://support.apple.com/lv-lv/guide/disk-utility/dsku19ed921c/mac ).

[–] qjkxbmwvz@startrek.website 9 points 4 months ago (1 children)

Sounds like one use-case of for same-sex couples to have biological children together. Which is pretty neat IMHO!

Not to say that the more macabre use cases don't exist, of course.

[–] qjkxbmwvz@startrek.website 5 points 4 months ago

...could pave the way for same-sex couples to have biological children together.

As usual, it sounds like the technology could be used for genuinely good things.

It could be used for horrible things too, yes, but that's often how it goes.

[–] qjkxbmwvz@startrek.website 4 points 4 months ago

You know you fucked up real good when Mr. Oatmeal gets involved.

[–] qjkxbmwvz@startrek.website 2 points 4 months ago (1 children)

No, that's not really a useful way of modeling it for the case of light traveling through a linear medium.

The absorption/re-emission model implicitly localizes the photons, which is problematic


think about it in an uncertainty principle (or diffraction limit) picture: it implies that the momentum is highly uncertain, which means that the light would get absorbed but re-emitted in every direction, which doesn't happen. So instead you can make arguments about it being a delocalized photon and being absorbed and re-emitted coherently across the material, but this isn't really the same thing as the "ping pong balls stopping and starting again" model.

Another problem is to ask why the light doesn't change color in a (linear) medium


because if it's getting absorbed and re-emitted, and is not hitting a nice absorption line, why wouldn't it change energy by exchanging with the environment/other degrees of freedom? (The answer is it does do this


it's called Raman scattering, but that is generally a very weak effect.)

The absorption/emission picture does work for things like fluorescence. But Maxwell's equations, the Schrödinger equation, QED


these are wave equations.

[–] qjkxbmwvz@startrek.website 8 points 4 months ago (2 children)

I kinda assumed any Mars mission would include some simple centrifugal pod. Seems like even if it's just for sleeping it would be useful.

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