I don’t get it. The key still gets declared, but it’s value is null. “name” in an empty object would return undefined, not null, correct?

(Yes, this joke whooshed, but I am curious now.)

Thanks for looking around! I already have a good selection of chemistry glass and am no stranger to doing home experiments. (I could probably use a good vacuum filter anyways and maybe I am just searching for an excuse to get one.) Distillation is an option for me, but it’ll be last resort. Still, having a few proper distillation pieces would go nice with my collection…

Some filter rigs I have seen are using small RO systems, but that seems like a pain to clean and those people probably need to filter a ton of IPA for it to be cost effective. Regardless, it is absolutely worth exploring more as setting up a filter loop would be awesome until it gets gummed up.

This looked promising as it is dealing with ethanol and plant extracts: https://youtu.be/VjxZVpGv_aM?si=5VFLYQkObCzUawbb … (This video specifically got me thinking about what could/couldn’t be filtered and is the root of this post.)

And absolutely, a multi-stage rinsing system is going to be needed if I scale up, which may be in the near future. Full context: I am studying and planning for a reverse engineering/prototyping business, so there could be a considerable amount of printing in my future and this is particular problem is part of the cost analysis.

I have a stock of 99% IPA already that I use for cleaning the bed of my regular 3D printer, electronics cleaning and for drying things coming out of my ultrasonic cleaner. (I can use salt to drop any water out of IPA, actually.)

With resin 3D printing, my washer uses about a gallon of IPA and it will get super dirty after a while. For that particular case, it’s just going to be more efficient to clean the IPA and reuse it until it needs to be distilled. (Wishing the parts in stages will help reduce IPA use, actually. Water washable resin is an option, but I would rather not dump that water down the drain or hassle with hazmat disposal, when applicable.)

Tin the wire and the pin first and then touch the iron to them both quickly. They should stick fairly well without needing to add additional solder. Also, like someone else mentioned, flux can help quite a bit. (Maybe even a cupped soldering iron tip might be useful, depending on the situation.)

Learning how to solder SMD components will get you extremely familiar with how solder behaves at that scale. Let’s just say it’s significantly different than just doing basic wires and THT.

(Well, the solder doesn’t really act different, but at smaller scales it looks like it does.)

Yeah, like many other people, I browse /all. Dudes post flooded my feed, basically.

Also, that account should be tagged as a bot. While some people may post this stuff manually, it seems kinda stupid to do so. I have no issues with bots unless they aren’t tagged as such. (I tickles my OCD a little, I suppose.)

Meh, I just blocked OP and all is well.

Throttle your posts, for fucks sake.

Until cheaper and easy-to-use eye trackers are available

Wut? We have been developing that for years. I just did a quick search for code and found this: https://github.com/IvanHalen86/Webcam_EyeTracker_Matlab_Arduino

I almost want update that code for an ESP32 and a couple of cheap cameras I have for them.

How the heat is generated is still wicked-cool and is basically magic. Think about it this way: We are holding a toroid shaped micro-sun in place with magnets. Those magnets need to be adjusted hundreds of times a second to keep everything in its place. Sure, it just boils water, but how it boils water is where the real magic is.

We are building atoms by taking control of the core of a star.

It’s likely going to create steam, just like a reactor today. It is a very effective way to turn a turbine for a generator, after all. All the bits that actually start and maintain the reaction need fuck tons of electricity, so the reaction can literally power itself when attached to a generator.

While there are a ton of formulas for converting energy from heat, to steam, to mechanical energy and then into electricity, it’s all basically the same: more power out than you put in is a good reaction.

Almost forgot, water is dual function. It cools the equipment and it acts as an energy transport. I believe ammonia is more efficient in some circumstances, but water is better for obvious reasons.

Yeah. Actually using that heat is the next challenge, I suppose. If I am not mistaken (and I am often mistaken), they are not actually using the reaction to power the reactor yet.

It’s all math, basically. If they measure more energy coming out than they put in, it’s considered a win.

(The article touches on this bit a little) I was watching something about fusion the other day and it seems that it is super tricky to keep the magnetic field balanced in a way that keeps the plasma in a proper toroid. Not only does it need to keep the correct strength, it has to fight against random turbulence. This is critical to start the reaction, but also to maintain it.

Also, they gave some other physical limitations in the article as well:

To extend their plasma’s burning time from the previous record-breaking run, the scientists tweaked aspects of their reactor’s design, including replacing carbon with tungsten to improve the efficiency of the tokamak’s “divertors,” which extract heat and ash from the reactor.

Basically, it’s the container that has limitations as containing a pseudo-sun probably isn’t easy.

It’s even more cyclical. I usually can’t remember the reasons why I made the change to begin with.

No worries! I am generally very open about it. (Your comment was recognizable to me, actually.) There is a very specific non-malicious bluntness that comes with the condition, actually.

But yeah, you have been practicing dealing with it your entire life. Treatment just helps a ton.

I do. Also, I am old(ish) so I have had many years to come to terms with what I can do well and where I struggle.

In this case, I didn’t want to use it as a crutch or an excuse. After reading the number of awesome replies this morning, I realized I should have probably framed my comment differently.

People here put some real time and effort into giving some solid advice and I didn’t expect that.

Edit: As a pure example, this is the third or fourth edit of this comment. Words are challenging, and programming is very similar in that regard.

Some people, like me, are not built to be developers. I can sculpt code in any language I need for whatever problem I need to solve, but maintaining code over a long period of time, with others, is not my thing.

The drive to do additional changes is just too high and the tendency for typos or obvious logic errors is too common. (There is one little improvement. It’s right there. One line up. Just change it now while you are in there…)

I am not stupid and regard myself as a decent engineer but my brain is just wired in a more chaotic way. For some things that is ok. For developing code on a team, not so much.

Security is the field I am most comfortable with because it allows for creative chaos. Rule breaking is encouraged. “Scripting” is much more applicable and temporary.

Sorry, my points were mixed unintentionally.

I agree, I stay away from JVMs because they are a pain in the ass to administer and like you said, are usually coded by the lowest bidder.

In a well maintained environment, I have nothing against JVMs actually.

I was just bitching about the spring framework family. While security updates are frequent, Java apps tend to not age well and commonly suffer from version lock-in. (I am going through a round of that at my current job with spring auth stuffs being the offender.)

I can agree with that. There isn’t anything wrong with diversity as long as the entire ecosystem benefits from it. There are pros and cons, but not really worth going into that here.

At the end of the day, this is the fediverse. If someone wants to write instance code in COBOL to run on a toaster, you go right ahead! (It doesn’t mean I am going to support that effort, but my own personal opinion is insignificant in the whole scheme of things.)

https://sublinks.org/

My reaction on this is: Whatever.

I have heard strange things about Lemmy development in general, so it makes sense that something else would pop up eventually. Java though? I avoid JVMs like the plague and the security track record for spring* is spotty at best.

Still, if some people prefer it that way, whatever.

Cool. Now go post this in the community where they are re-writting Lemmy in Java.

What a kick-ass resume bullet:

Sr. Rock Bender (Nov 2019 - Current)

• I bend rocks