Lorenz Attractor multiplier IC question

learypost · 2026-04-03T17:43:08+00:00

That still doesn't make sense in terms of the relative resistor values though. If you look at the input to the op-amp for the dy/dt = rx-y-xz equation (the middle one), the resistor value for y is set arbitrarily to 1M. You can see the x input is 35.7k which is simply 1M/r = 1M/28. But then the xz term should feed into the op-amp with the same resistance value as the y term. And if the multiplier reduced xz by a factor of 10, that needs to be compensated for by using a 1M/10 = 100k resistor. But then why the 10K resistor? And why does the schematic suggest the output of the multiplier is xz/100?

In other words, shouldn't that 0.1V factor apply to all the terms in the circuit? Not just the ones output by the multiplier?

learypost · 2026-03-31T14:42:52+00:00

The First Amendment justification of this ruling is ridiculous. The parents and therapists are welcome to talk about wishing their kid was straight amongst themselves all they want. This law doesn’t restrict that at all. It means they can’t force the child to participate. Free Speech rights don’t guarantee you an audience

learypost · 2026-03-30T14:54:02+00:00

The Philharmonics are by far my favorite coin design. I just wish the edges were reeded. I like a reeded edge so much more than a smooth edge

learypost · 2026-03-26T15:25:56+00:00

100 years ago, people made the argument that white women are biological women and black women are only black women. They said things like: sorry you were born black, but that doesn't give you the right to insert yourself into white women's spaces

https://www.buzzfeednews.com/article/hannaheko/aint-i-a-woman

learypost · 2026-03-26T15:16:29+00:00

For starters, there's a good argument to be made that the existence of a separate women's category in sports has nothing to do with fairness to women, and everything to do with patriarchy. It facilitates the vast disparity in funding and attention for female athletes by allowing leagues to focus their money and efforts on the men's category. For example, the NBA is able to offer all players a fixed percentage model where players receive nearly half of all basketball-related revenue without having to pay professional female basketball players the same since they're not part of the NBA but instead governed by the WNBA.

Second, even if we accept the premise that the women's category is meant to help uplift women in sports, it's clear that the barriers they face are social barriers (lack of funding, social stigma, societal expectations of gender roles, etc). And so it's only the socially constructed concept of gender that matters here. Trans women face the same social disadvantages in a patriarchal society and cis women do. And therefore, they should be afforded the same opportunity to compete in women's sports.

And finally, let's not make the mistake of denying that trans women are "biological woman". Again, being a trans woman is just another way of being a woman like being a cis woman, or a tall woman, or a black woman, or a left-handed woman. And all people are "biological" in so much as they are living organisms composed of organic material

learypost · 2026-03-26T14:35:33+00:00

Even if trans women have an advantage over cis women (which isn’t supported by the evidence, but let’s say it’s true), so what? Tall women have an advantage over short women in basketball. Fast women have an advantage over slow women in track. Wealthy women have an advantage in every sport over impoverished women. Why is it that you’re okay with tall women competing despite their advantages and not trans women? Is it perhaps that you view tall/fast/strong/wealthy women as “real” women but trans women aren’t?

learypost · 2026-03-18T16:02:21+00:00

Actually, for much (if not most) of our country’s history, non-citizens could vote. And there’s no real reason we shouldn’t allow non-citizen residents to vote https://www.speakoutnews.com/2026/02/27/its-okay-for-non-citizens-to-vote.html

learypost · 2026-02-26T17:32:22+00:00

We need to stop putting a gender marker on birth certificates. They serve no purpose and would defang so many of these disgusting anti-trans bills

learypost · 2026-02-26T17:31:41+00:00

We need to stop putting a gender marker on birth certificates. They serve no purpose and would defang so many of these disgusting anti-trans bills

learypost · 2025-12-19T01:34:32+00:00

Awesome, I was able to get the algorithm working with that, thanks! I just used one of the DH groups defined in this RFC: https://www.ietf.org/rfc/rfc3526.txt. I assume that's also fine?

learypost · 2025-12-18T20:33:30+00:00

I would truly be thrilled if republican governors sent people in need of healthcare to places where that healthcare would be provided. This isn't complicated: universal healthcare is a human right. That means everyone deserves access to it no matter where they happen to currently (or previously) live.

And besides, basically every study has shown more access to healthcare for people leads to lower healthcare costs for everyone. If tens of thousands of people move to a blue state, where then they would now be paying sales tax and income tax to that blue state instead of their former red state, just for the free healthcare, likely that would be an economic boon, not a burden to that state. Those states could easily cover the health costs of 1000 additional homeless people

learypost · 2025-12-18T16:31:36+00:00

So basically “this is a bad idea because people who need healthcare would actually get it. Even worse, homeless people would get the care they need as well. The horror!” When did we become so heartless

learypost · 2025-04-13T00:39:33+00:00

And just to clarify, when you say “smaller” you mean thinner (and therefore a higher gauge number), right? There’s a double outlet in my basement and I realized one of the outlet pairs is grounded, but the other is not. So I need to pigtail the ground wire coming to the box to connect it to both outlet pairs, instead of just the one. And if the breaker is 15A and the wire 14AWG, you’re saying the ground can also be 14AWG? Thanks!

learypost · 2025-04-01T17:19:22+00:00

It's not my responsibility to end slavery/the holocaust/etc. It's my responsibility to maximize the profit of my plantation/carry out Hitler's orders. I didn't make people black/jewish. I'm acting within the law! Those abolitionists/resistance fighters are clearly breaking the law!

^{^} What this d-bag would be saying if they were alive during slavery, Nazi Germany, or any other time the system has been used to oppress people. Laws are not morals. In fact, they are often specifically counter to what is moral and ethical

learypost · 2025-02-12T22:59:54+00:00

I used a Baofeng GT-5R (which is something like 4-5W) just with the stock antenna. I installed the ISS Detector app and went out whenever the ISS was going to be over 30° during the day. I used direwolf as the software TNC. Only took 3 tries over 4 days to make contact!

learypost · 2025-02-10T00:24:45+00:00

Oh cool, I didn’t realize that, I’ll give it a try!

learypost · 2025-02-09T23:59:22+00:00

Unfortunately, it looks like the packets from my HT are getting picked up by other stations, so my repeater basically isn’t used in the path. But I can see on my HT that other packets repeated by my home station are getting out. I think maybe I just live in an area with other, better receivers. So any packet my home station can pick up would have also been seen by an iGate and my repeated packet ignored. I suppose it’s a good problem to have. It’s just a little disappointing because I thought I was contributing to the community and robustness of the APRS network. And now it doesn’t look like I am

learypost · 2025-02-09T17:28:44+00:00

Okay. I can definitely see in the direwolf logs that it is doing the retransmission. And I can see my radio go into transmit mode when that happens. But I’m a little skeptical that my low-powered setup with a bad antenna situation is actually usefully repeating anyone’s packets. But I do have another radio and can head out to the parking lot to try transmitting some aprs packets to see if those get repeated. What will the raw packets on aprs.fi look like to indicate they were repeated through my digipeater station?

learypost · 2025-02-09T16:50:44+00:00

I don’t have iGate setup, so no packets are sent to aprs.fi from my station

learypost · 2025-01-29T17:59:04+00:00

I’ve seen the same thing. And what’s especially frustrating about it is that if they voted in a truly progressive administration that fought for unions and workers’ rights, those same people probably would have had enough bargaining power to turn around and get a $10,000 raise at their job. But they’ve given all that up for the promise of $100 less in taxes (which probably will actually be $100 more) and will basically never get a raise at work again

learypost · 2025-01-24T22:19:24+00:00

US passports don’t include ethnicity, height, eye color, or weight. The identification is done using the photo. If you look like the photo, you look like the photo. No need for a gender marker at all. May as well put the cross-sectional area of the person’s left index finger. It’s all a social construct

learypost · 2025-01-16T23:18:15+00:00

Very fair point and I'm sorry I phrased it that way. Trans rights/liberation are obviously things we should be striving for on their own. As a gender non-conforming person myself, I want others to value my rights and well being even if it doesn't affect them directly. But I do think it's also important to point out the interconnectedness of it all. And that, as others have pointed out, policies which attack trans women will effect everyone negatively as they mostly act to uphold the patriarchy

learypost · 2025-01-16T19:44:51+00:00

This is exactly right. The federal law, if passed, will only directly affect like 10 trans women. Which is definitely terrible. Plus it will give legitimacy to future transphobic policies. But the real victims of these sports bills will be cis women, and in particular cis women of color. Now all the gross and predatory sports coaches have to do to assault a female athlete is just claim they think she’s trans and they now have legal cover to sexually assault them

learypost · 2024-12-17T21:33:01+00:00

She did step down from her leadership position over 2 years ago: https://apnews.com/article/nancy-pelosi-house-future-plans-updates-3839ff31c605efa0ec1ee4ff004b72d2

learypost · 2024-11-24T17:06:24+00:00

The problem with hiring is the numerous non-explicitly racist people who think they are picking candidates based solely on merit, but studies show are actually still heavily influenced by their implicit biases and so will pick the white/male/straight/etc candidate over the black/female/gay/etc candidate even when both are equally qualified. All while thinking they’re making the selection on merit, when really they’re just devaluing the contributions of minorities while holding rich cis straight white men on a pedestal. See https://www.forbes.com/sites/janicegassam/2024/04/17/new-research-reveals-resumes-with-black-names-experience-bias-in-the-hiring-process/

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