qjkxbmwvz

joined 10 months ago
[–] qjkxbmwvz@startrek.website 17 points 14 hours ago* (last edited 14 hours ago) (1 children)

Take numbers with a grain of salt, e.g., this link says a 7200RPM 160GB SATA drive from 2004 is $107, or about $0.67/GB, instead of the $5 claimed in post.

[–] qjkxbmwvz@startrek.website 5 points 1 day ago* (last edited 1 day ago)

Not at all in this case though! Or rather, it depends on your perspective.

"Why doesn't electricity leak out the outlet?" is a good question, if you know nothing about electricity.

"Why doesn't electricity leak out the outlet?" is a little stupid, if you know a little about electricity.

"Why doesn't electricity leak out the outlet?" is a great question if you know a bit more about electricity (because it does leak out, it's just that 50/60Hz doesn't couple to freespace well unless you have a colossal antenna).

As to this question, light in moving media: https://preprints.opticaopen.org/articles/preprint/Fizeau_Experiment_Investigating_the_Speed_of_Light_in_Moving_Media/25441108?file=45147313

[–] qjkxbmwvz@startrek.website 89 points 2 days ago (4 children)

It's a matter of perspective and use


high density one place means you can have open space somewhere else, for a given amount of land.

I'd much prefer a few large dense housing complexes, surrounded by green space, than suburban sprawl.

[–] qjkxbmwvz@startrek.website 8 points 3 days ago (1 children)

50kW class laser.

Another source claims 1um wavelength with individual 1.5kW lasers in a hex pattern


unclear if it's a phased array (would be awesome) or just trained on the same target (source mentions they are "combined using a mirror" so probably the latter).

Sounds like maybe high power YAG?

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

Hmmm, I'm not sure I understand...

A large explosion every second has units of power, not energy. So to me this is suggesting that the train is putting out power equal to its kinetic energy per second. That's certainly not the case


it implies that the train is powerful enough to accelerate to the speed in 1s, which is definitely not true.

But that's just my interpretation.

[–] qjkxbmwvz@startrek.website 8 points 4 days ago* (last edited 4 days ago) (3 children)

~~I don't think your units make sense


kinetic energy has units of energy, but "kg TNT per second" is power (about 4MW). (I think just remove the "every second" and it's correct?)~~

Edit: parent edited comment.

[–] qjkxbmwvz@startrek.website 3 points 5 days ago

It's maybe not that bad for a "normal" person, but Bill Nye was a real hero to a lot of young folks, be they aspiring STEM types, science enthusiasts, or just curious people. So to see him sell out


abandoning scientific integrity for a quick buck


was pretty disheartening.

[–] qjkxbmwvz@startrek.website 9 points 5 days ago

You can!

Getting it published is another matter though...

[–] qjkxbmwvz@startrek.website 11 points 6 days ago

Immich looks particularly good to me.

It is! Been running it for a few years now and I love it.

The local ML and face detection are awesome, and not too resource intensive


i think it took less than a day to go through maybe 20k+ photos and 1k+ videos, and that was on an N100 NUC (16GB).

Works seamlessly across my iPhone, my android, and desktop.

[–] qjkxbmwvz@startrek.website 30 points 1 week ago (2 children)

...using chopsticks of course, so you don't get your mechanical keyboard dirty.

[–] qjkxbmwvz@startrek.website 10 points 1 week ago (1 children)

Maybe they mean four year uptime...

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