[-] qjkxbmwvz@startrek.website 56 points 1 week ago

I was writing up my problem set answers once, and it involved the (complex analysis) residue. I wasn't sure if there was a shortcut (as opposed to \mathrm); googling latex residue did not produce the search results I was hoping for...

[-] qjkxbmwvz@startrek.website 59 points 2 months ago

While neat, this is not self-sustaining


it's taking more energy to power it than you're getting out of it. (You can build a fusion device on your garage if you're so inclined, though obviously this is much neater than that!)

One viewpoint is that we'll never get clean energy from these devices, not because they won't work, but because you get a lot of neutrons out of these devices. And what do we do with neutrons? We either bash them into lead and heat stuff up (boring and not a lot of energy), or we use them to breed fissile material, which is a lot more energetically favorable. So basically, the economically sound thing to do is to use your fusion reactor to power your relatively conventional fission reactor. Which is still way better than fossil fuels IMHO, so that's something.

[-] qjkxbmwvz@startrek.website 52 points 3 months ago

And environment


DISPLAY and PATH in particular.

[-] qjkxbmwvz@startrek.website 55 points 6 months ago

this was always bound to happen as we expand our presence in space.

Yes and no


from a different article:

Radiation associated with Starlink satellites was detected at observing frequencies between 110 and 188 MHz, which is well below the 10.7- 12.7 GHz radio frequencies used for the downlink communication signals.

(The original article said 5M radiation, which should be around 60MHz.)

So Starlink is emitting RF in spectrum where they shouldn't, which is avoidable, but takes effort.

My guess, and I could be wrong, is that this could be related to something other than the radio(s), such as switching power supplies finding opportunistic structures from which to radiate.

[-] qjkxbmwvz@startrek.website 56 points 6 months ago

An incidental exchange of earwax with your (romantic/sexual/life) partner is


how do I put this?


not particularly noteworthy for a lot of folks...

[-] qjkxbmwvz@startrek.website 55 points 7 months ago

California has optional mail ballots for everyone. Can't imagine voting without it


I can fill out my ballot at my leisure, researching measures when I have time. No need to remember anything or make a cheat sheet for election day. And no standing in line.

[-] qjkxbmwvz@startrek.website 57 points 8 months ago

Apparently an unpopular take, but wouldn't the world (or at least, this country...) be a better place if the folks who became cops were the type of people who were also considering being a librarian?

Basically it seems like the ACAB mindset is in part self-fulfilling: "cops are bastards , I'm not a bastard, therefore I won't be a cop." Ok, so now some bastard who is less qualified than you becomes a cop, with no competition from you.

I get that the institution of policing in this country is deeply flawed; but is what we're currently doing really working?

Maybe a progressive, grass roots "infiltration" of the police is doomed to fail, I dunno. But I'm not sure we'll ever find out.

[-] qjkxbmwvz@startrek.website 52 points 8 months ago

In an undergrad electronics lab class, the TA suggested I put the function generator leads on my tongue, and play with the parameters. Obviously I know what an applied DC voltage "tastes" like, but he suggested AC, sweeping the frequency. Sure enough, above a certain frequency (want to say 10s to 100s of Hz?), I couldn't feel it at all.

Fun stuff.

[-] qjkxbmwvz@startrek.website 54 points 9 months ago

My company did it the right way


they gave us the day off.

[-] qjkxbmwvz@startrek.website 57 points 10 months ago

If the research was conducted with public money, it should be freely accessible by the public, change my mind...

[-] qjkxbmwvz@startrek.website 52 points 11 months ago

Minimum wage shouldn't be a dollar amount, it should be a living amount defined in a reasonable and realistic way. (Probably should be region dependent, too?)

[-] qjkxbmwvz@startrek.website 52 points 1 year ago

Possibly because a zip code implies you live in the US instead of your own sovereign state.

Or something...probably giving these folks too much credit here...

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qjkxbmwvz

joined 1 year ago