stormdog: a woman with light skin and long brown hair that cascades over one shoulder. On her other side, she is holding a large plush shark against herself. She has pink fingernails and pink cat eye glasses (Default)
I've been kind of crashy this evening.

I found some information about a device called a ViraWarn that would make it safe to invite people over to my place, along with other layered protection measures, and possibly even without masks, if it operates the way the designers claim. I was so, so very hopeful. When I really want something to be true, though, I hold it a higher level of scrutiny than I otherwise would and there are questions that don't seem to have answers.

One of the points that raises concern for me is that, while there is a sort of summary of the results of independent testing on the device, the name of the laboratory is not there. Is that common in this kind of testing? Is it a fear of liability or the appearance of an endorsement from the lab? I would think that any legit safety testing lab would stand publicly behind its results, but maybe I'm wrong?

I turned up some relevant recent patents that are definitely directly related to this product, but it's entirely possible to patent a device that doesn't work and I don't have the expertise to evaluate this kind of complex engineering. I contacted the company and asked the following:

*Is the report from the independent testing lab available to look at?
*ViraWarn is in a clinical trial now: is there a preregistration document for that study?
*Is there any relevant medical literature publications that relate to the ViraWarn's theory of operation? I was able to find some papers by Dr. Mesfin Meshesha, but they do not appear to be directly related.

I would very much welcome other thoughts on this from my readers.

The company's website for the device is here:

https://opteev.com/virawarn/

This video seems to have more theory of operation information then the website in general does.

https://youtu.be/H2LPrpQIOMQ

---

Anyway, having my hopes raised so high and then being let down made for a difficult evening, but I'm managing. And Miriam and I have made a lot of progress on the mask front as well. I'll probably write more about that later, but I desperately hope to open up my life a bit more in the near future in safe ways.
stormdog: (Geek)
I'm watching a lecture series on electronic theory and the instructor is talking about modeling an incandescent light bulb. He said something like "We're going to talk about a kind of light bulb that's no longer in production. You might not have seen one if you're really young. It has a *filament* inside it, not LEDs." It kind of broke my brain for a few moments.

Also, if you're looking for this sort of thing, these lectures seem really good so far. Between the basic circuits series and the electronics 1 and 2 series, there's at least 100 hours of content here. The lecturer is Behzad Razavi, an electrical engineer with a Ph.D from Stanford, so he probably knows what he's talking about! It's relatively new on YouTube, too, which explains why I didn't find it last time I looked for things like this.

The second lecture threw in a little calculus in talking about how to determine current over time and frankly I was kind of terrified. I haven't gotten to calc yet, and though I was really enjoying teaching myself math through Khan Academy on my own before the Netherlands, the last time I tried I was having a really rough time getting things to stay in my brain and I got really discouraged. When he mentioned integrals, I actually stopped watching and leaned against Miriam on the couch and cried for a little while thinking that my current mental state was going to keep me from being able to learn yet another thing. But the calculus was only a passing reference, and so far at least (and I've only gotten through the first three basic circuits lectures, so maybe that will change) not knowing that level of math is not a hindrance. And Miriam has offered to help me get the gist of the math, too, if there's much beyond my level because she is a wonderful, and pretty smart, partner!

https://www.youtube.com/@longkong9919/videos
stormdog: (Geek)
I need to manage passwords more securely. I'd decided tonight to start switching over to passwords generated randomly from word list. Here's a useful online implementation of such a thing. I used it to create passwords for a couple of things I had to sign up for today. www.rempe.us

Reading a bit more on the topic, I think I'm doing one better. I'm going to use KeePassX, an open-source and GNU licensed password database manager. It creates randomized strings of characters for use as passwords and protects them behind a master password that I can generate via Diceware. It's about time I started doing something like that.

And now, I should get to bed.
stormdog: (Geek)
I haven't mucked with network settings for a long time, but the wireless here has been flaky for a long time and I decided to do something about it. During a few thrift store trips, I picked up two old wireless routers and scavenged power supplies for them (total cost around $10). Tonight I spent a while getting one of the new ones set up behind our existing router. I gave it static IP info, had it connect to Google's public DNS servers for name resolution, and put it in the first router's DMZ. Seems to be working well so far on our housemate's Chromebook. If it's better than the old one, I'll decommission the old network and transfer everything to the new one. I may also try reconfiguring the second router as a simple AP instead; that seems like it might be more reliable, but I wasn't sure at first if it was doable. Of course, I found a write-up after finishing it the first way.

I also recently managed to pick up a 4-port 1000-base switch (for $3; yay thrift stores!) for the entertainment center so we can get both my Xbox and the computer on hard-wired connections, as well as whatever else might end up in that area eventually. I don't particularly miss working in IT, but I can still get myself to puzzle through this stuff when it's helpful to.

One Goodwill I was at recently had a box of vacuum tubes. Vacuum tubes! Or, RCA electron tubes, as the box said. In their original box of 8! Where do they get these things?! No idea what they were for, but they were neat to look at.

Also, Danae says she loves it when I'm singing as I work in the kitchen. It's like, she says, "having her own Disney-princess houseboy!"
stormdog: (Kira)
I just Googled up the process of using the Windows 7 magnifier function to invert screen colors. It's so much nicer reading PDFs in white on black!

Speaking of reading PDFs, I may use my first paycheck to buy a tablet for reading and annotating PDFs. Can anyone who does a lot of that recommend an OS that has a really good app for doing so? Ideally, I'd like a table that will interface with an external keyboard too.

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stormdog: a woman with light skin and long brown hair that cascades over one shoulder. On her other side, she is holding a large plush shark against herself. She has pink fingernails and pink cat eye glasses (Default)
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