1. Extending a wireless network with OpenWRT.

    16 June 2020

    One of my earliest covid-19 lockdown projects was doing a little work on my home wireless network.  I have a fairly nice wireless access point upstairs running OpenWRT, sitting behind the piece-of-shit DSL modem-slash-wireless access point our ISP makes us use.  All of our devices connect to that AP instead of the DSL modem.  Let's call it Upstairs.  However, the dodginess of the construction of our house being what it is (please don't ask), wireless coverage from upstairs isn't the greatest downstairs.  The fix for this, conveniently, is to set up another wireless access point downstairs and connect the two …

    Read more...

  2. An in-depth discussion of tear gas.

    08 June 2020

    Before I repost this Twitter thread in toto, I'd like to say a few things.  First, Zander is an old friend of mine (pushing 20 years at this point).  Second, while he might bill himself as "an amateur chemist," his scientific expertise has been helpful to me numerous times over the years, so I feel that I can vouch for his knowledge as well as his assessment of the situation.  I asked him if I could repost this research earlier and he gave his permission.  For clarity I've made minor edits to add punctuation.  I've also reposted the images he …

    Read more...

  3. Getting a C64 online in 2020.

    01 June 2020

    As you might have seen in previous posts, my stuck-in-quarantine project has been restoring my C64 so I can play around with it.  Part of that involves figuring out what you can reasonably use such a venerable computer for in 2020.ev, besides playing old games.  Word processing and suchlike are a given, though I strongly doubt that I could get my Commodore playing nicely (or even poorly) with the laser printer in the other room.  Also, the relative scarcity of 5.25" floppy disks these days makes saving data somewhat problematic (though I've got a solution for that, which …

    Read more...

  4. Reprint: Making your own superconductor.

    29 May 2020

    Disclaimer: Times have changed since this article was written so seek legal and scientific advice from qualified personnel if you plan to try making your own superconducting materials.  I am not qualified personnel or a lawyer.  Do not try this at home.  We live in a world in which possession of basic chemistry apparatus is illegal in some places, so do your homework.

    Process reprinted from OMNI Magazine, November 1987, page 76.  (local PDF) (local CBR) (right-click -> save as to download))

    From How To Make Your Own Superconductors, by Bruce Schecter.  Retyped as faithfully as possible.  Hyperlinks mine, added for …

    Read more...

  5. Faking a telnet server with netcat.

    25 May 2020

    Let's say that you need to be able to access a server somewhere on your network.  This is a pretty common thing to do if you've got a fair amount of infrastructure at home.  But let's say that your computer, for whatever reason, doesn't have the horsepower to run SSH because the crypto used requires math that older systems can't carry out in anything like reasonable time.  This is a not uncommon situation for retrocomputing enthusiasts.  In the days before SSH we used telnet for this, but pretty much the entire Net doesn't anymore because the traffic wasn't encrypted, so …

    Read more...

  6. Montage: Restoring a C64 and 1541 drive.

    22 May 2020

    A couple of days back I posted a writeup of how I restored my old Commodore 64, from taking it apart to putting it back together and firing it up for the first time in over 30 years.  As I am wont to do, I periodically took photographs of my progress.  Well, here they are.  I didn't do a full how-to because folks more experienced than I have already done so (that's how I learned how to do this in the first place).  I'll put more stuff online as I make more progress.  Enjoy.

    Read more...

  7. Adventures in retrocomputing: Restoring a vintage Commodore 64.

    20 May 2020

    You've probably been wondering where I've been since my last update in the latter half of April.  I mean, where would I reasonably go right now when most of the country is locked down and only a relatively small number of people with more memes running inside their heads than conscious processes are running around with mall ninja gear and weapons (some props, most unfortunately not) doing their damndest to cut the population by infecting everyone around them with covid-19?  Well.. when I haven't been working (as one does) I've been reconditioning my old Commodore-64 computer, the first computer I …

    Read more...

14 / 206