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The Virus By the Numbers

I'm writing this because there's some really insane stuff that's being said by people who should really know better, and I'm sick of discussing it one post or email at a time. So, this is my One Big Post that I'll point people toward rather than bringing it up again and again. In case you haven't noticed, we're in the middle of a pandemic. Just so that we're all using the same terminology:  The virus is Severe acute respiratory syndrome Coronavirus 2 . It's usually abbreviated SARS-CoV-2. It's a brand new kind of Coronavirus, so for a while, before it had this awkward name, people were calling it "novel coronavirus". (For the non-English speakers and D students, "novel" is another word for "new".) The disease that the virus causes is called Coronavirus Disease 2019 , and it's usually abbreviated COVID-19. It's called that because it was discovered in 2019. This came out of nowhere in China in late ...
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The Chromecast conceptual model

Google makes a device called Chromecast . It's a relatively inexpensive way to turn any TV into a "Smart" TV capable of playing movies or music. It's a clever bit of engineering, but I've run into a few people who have trouble understanding how they work. The key thing to understand is that the Chromecast is the device that's actually receiving and playing the movie (or whatever), and your phone is just the remote. Here's how the process works at a high level: You start watching a video on Youtube 30 seconds in, you decide that you'd like to watch the rest on your TV, so you press the "Cast" button. Your phone stops playing and tells the Chromecast "Get this video directly from Youtube and start playing at the 0:30 mark"  When your phone initially asks the Chromecast to start playing, it also specifies a "default thing" to do when the Chromecast is finished. If the Chromecast is playing a Youtube video, it might...

Separate Addresses and Have I Been Pwned

Many years ago, I started giving out a different email address to every places that asked for one. To do this, I had to own a domain and set up email hosting. When I first set this up, I accepted email addressed to any address at my domain. Since then, email security has improved a lot. To use security features like DMARC , I had to stop accepting all addresses and had to only accept mail from a list of valid addresses. A few years ago, a guy by the name of Troy Hunt started collecting the lists of compromised databases and passwords that were floating around the internet. He put together a site called Have I Been Pwned  (HIBP) and after proving your ownership of a domain, you can request a list of all of the accounts at that domain that have been compromised. You can also do the same thing for a single email address if you don't own a domain. It's important to remember that this isn't a list of ALL compromised accounts -- only the ones that have made their way to ...

Fixing Linux Audio

This is somewhat technical, and it's aimed at people who use Linux and are comfortable editing files from the command line. I was looking for a quick fix, but discovered that most of the documentation out there is wrong. So, I had to research what it all meant, figure out what the correct settings were, and write it all down. For the Impatient If you use Linux, and you're just looking for a quick way to make your sound better, add these lines to /etc/pulse/daemon.conf or $HOME/.config/pulse/daemon.conf   default-sample-format = s32ne default-sample-rate = 192000 high-priority = yes default-fragments = 8 resample-method = speex-float-10 I've tested this on Fedora and Ubuntu with no problems. Also, if you're using an external DAC (if you're not sure, then you're not using one), be sure that it has sufficient power (either plugged directly into the computer or into a powered USB hub. DO NOT plug it into an unpowered hub or dongle. A...

Oh say can USB-C

There's a new-ish connector on modern computers called USB Type C (often shortened to USB-C). It uses a small oval connector . It can do all of the things that existing USB connectors can do and more. Most significantly, it can send quite a bit of power, so it can be used to power laptops, monitors, etc. and it's a lot faster, so it can be used to send data, video, etc. So, it can replace literally every other connector on the back of a modern computer. Oh, and it's also reversible, so you don't have to worry about plugging it in backwards or upside down. Right now, it's going through the awkward chicken-and-egg phase that any new technology faces. Most people still have old USB printers, external disks, keyboards, etc., so computer makers are reluctant to switch entirely to USB-C. They leave a few old style USB connections, just in case. And since old computers and new still include a few old USB connectors, accessory makers stay with the old style of USB. In c...

Audio upgrade: Schiit Fulla 2

I recently purchased a Schiit Fulla 2 . I was on the fence about it for a long time, but it's held up well, and I'm pretty happy with it. So, here's a small product review. I should probably mention that I'm generally skeptical about "audiophile" anything. I've known too many people who spend way too much money on voodoo like "oxygen-free speaker cables". This makes me reluctant to trust reviews or spend money on anything that I can't test for myself.  I've heard good audio. I go to concerts. I know what music is  supposed to  sound like, and it wasn't what I was getting from any of my computers, even with decent headphones, lossless audio codecs, etc. On the other hand, we have some  Sonos speakers , and with those speakers and a good audio source, music can sound really good. Since I wasn't getting that level of quality at the computer, it meant that there was something between the computer and my ears that was part of ...

Papers 2018, Part 2

My adventures in bureaucracy, continued ... While I was contacting various agencies and embassies, Laura reached out to the appropriate people at her office and got yet another contradictory set of information. It also caused a spotlight to be shined on us from the great heights of an international corporate legal department. It turns out that Our visa renewal was not directly tied to the criminal background check. It was just a case of both needing to be redone at the same time, so all of the letters went out the same day. We received our new visa with an expiration date of... April 2018, which was a problem. It turned out to be nothing more than a typo. Someone entered the wrong date into a form somewhere. We visited the Kreisburo on Friday and they were apologetic and embarrassed. It's uncommon to see those things here, especially from the normally quite competent government officials. Apparently, the problem had already been detected and new visas were on the way. The cor...