Vacuum tubes
Vacuum tubes? I thought those became obsolete when transistors were invented.
51 publicly visible posts • joined 29 Apr 2015
Just today (1 Aug 2025) I got a marketing email from Dropbox, suggesting that I might want to upgrade from their Free plan to their Business plan. One of the benefits of upgrading, they said, was
• Safely store and access account login info across all your devices with Dropbox Passwords
I don't think their marketing department has heard the news yet.
I'm pretty sure that Ctrl didn't start on the bottom row at all. I grew up coding on a Model 35 teletype, and Ctrl was directly to the left of A. That's why I always remap the useless CapsLock key as a second Ctrl key.
The Model 35 put the Esc key directly to the left of Q, not far off in the corner. Much nicer for 'vi' users.
Root certificates, by design, are not renewable. Before they expire, they get replaced by new certificates. Mozilla did that a few years ago, and included the new certificates in Firefox releases. Once people update to a version of FF that's not ancient, they'll automatically pick up the new one.
Spanish formerly treated CH as a separate letter, alphabetized between C and D: CZ < CH < D. (It's still a separate letter, but now officially collates as if it were C followed by H: CG < CH <CI...).
When I lived in San Juan (Puerto Rico), the city had a moderately large number of people with English surnames. In the phone book, Spanish names were alphabetized using the old Spanish collating rules, BUT English names used English rules. So you had Cabrera, Calderón, Cervantes, CHAMBERLAIN, CHRISTIE, Colón, Costa, Cruz, Cuellar, CHACÓN, CHÁVEZ, Dávila, Díaz.
Your second paragraph is incorrect. A GFCI (sometimes shortened to GFI) and an RCD work *the same way*. They trip if the current flowing in the live and the neutral are not the same. Neither device looks at the ground circuit. The name RCD is more common in Britain and Europe, while GFCI is what they're called in the US. In the US they often are in the sockets, while in Europe they are more commonly in the panel.
The "GF" in GFCI stands for ground fault — if there's greater current in the live than in the neutral, it means some of it must be leaking to ground, but not necessarily to the ground circuit.
The library in question (the Kilton Library in Lebanon, NH) held a public meeting in which residents *overwhelmingly* supported the Tor node in the library. Following the meeting, the library trustees voted to bring the node back up, and it is still running. The node name is "LebLibraries".
https://www.vice.com/en/article/yp3dzm/these-public-comments-saved-a-librarys-tor-server-from-a-government-shutdown
https://www.npr.org/sections/thetwo-way/2015/09/16/440848324/n-h-public-library-resumes-its-support-of-tor-network
In the 1980s, I was writing software for Alpha Micro computers. These were inexpensive multi-user systems designed for small offices, with hard drives and multiple RS-232 ports. Because standard computer tape drives would have been prohibitively expensive, you could buy an adapter card that would allow you to use an ordinary consumer-grade VCR as backup storage.
These video recorders had a pretty high error rate: if you're watching a movie, you'll never notice a few dropped bits in a video frame. The software got around all the errors by massive redundancy. Each block was recorded 16 or 32 times. You could take a hole puncher and punch half a dozen holes in a backup tape, and it wouldn't care. If the tape broke, just trim it back an inch and use a splice kit. The missing data would be repeated later on the tape, so it didn't matter.
Even if you don't use computer translation, you can get in trouble. Consider the Welsh municipality that emailed their staff translator to find out how to say "No entry for heavy goods vehicles". The answer came back promptly — "Nid wyf yn y swyddfa ar hyn o bryd" — so that's what they painted on the new road sign.
Unfortunately, that Welsh phrase wasn't their translation; it was an automated response that means "I am not in the office at the moment".
There seems to be some confusion between key fobs (which attach to the key ring) and key transponders (which are built into the key).
Fobs transmit a signal to lock or unlock the doors. They certainly require a battery, which can go for years before it needs to be replaced.
Key transponders do not have a battery. They are powered by induction, and transmit a code while they are near (within a few cm) of the ignition lock. When away from the car, they have no power and don't transmit anything.