jcrawfordor

10 ms·

61.
by jcrawfordor 2y ago
I think the typical presentation of 4NF makes more sense when you consider the ergonomics of data processing systems when relational modeling emerged. Predating computing, data processing was all centered around "records." Relatio
62.
by jcrawfordor 2y ago
Unfortunately the architecture of IPAWS can introduce fairly long delays. The EEWS system uses a dedicated channel to deliver alerts to WEA more quickly, since a study by USGS/NIST had determined that IPAWS could not meet time objectiv
63.
by jcrawfordor 2y ago
A big issue here too is the image stitching; aerial images are registered for big tile maps based in part on feature analysis of the edges and that just never works right for images of the ocean (mostly you have waves, and they're in d
64.
by jcrawfordor 2y ago
It is a rather interesting question if organized crime got into the payphone business. Not that I know of, and something that I didn't get into (because it's kind of a tangled patchwork and not really that relevant) is that states
65.
by jcrawfordor 2y ago
Here's the good stuff: https://www.lipomed-usa.com/en/cannabinoide Lipomed and a few other companies actually sell all kinds of psychoactives and narcotics as reference standards for toxicology, but the market for
66.
by jcrawfordor 2y ago
The whole 666 embedded in barcodes thing is sort of interesting. The UPC symbology uses an unusual encoding method, not seen in other barcode families, where every digit has two different representations, a "left" and "right&
67.
by jcrawfordor 2y ago
Kartrak is generally recognized as the first barcode system in actual use, but research on the topic and small prototype systems go back around 20 years earlier at IBM. So it depends on what you consider "first." One of the issues
68.
by jcrawfordor 2y ago
Producing these large mirrors is a very specialized industry, the projects are extremely expensive, and the timelines are long. Things tend to get passed around between programs, sometimes for reasons as simple as a mirror having been compl
69.
by jcrawfordor 2y ago
The terminology here can be a little confusing, because WoL isn't a precisely standardized term but rather sort of a general label for a family of behaviors, the most common of which is the "Magic Packet" that originated with
70.
by jcrawfordor 2y ago
1. The way I see it, Medina is either lying or an idiot. His signature is on the approval for SOP 2-8 which mandates the activation of OBRD; so did he sign it without reading it or willfully ignore it? Neither is acceptable of the chief of
71.
by jcrawfordor 2y ago
We also have to bear in mind that the computer industry often uses "RS-232" in reference to something that uses neither the connector nor the signaling levels defined by RS-232, something we have IBM to thank for.
72.
by jcrawfordor 2y ago
the term "pig butchering" originates in Chinese (杀猪盘), where this particular style of scam is often targeted at overseas people via WhatsApp. So "pig butchering" refers specifically to these scams run from China (or else
73.
by jcrawfordor 2y ago
I see the same thing! A little tempted to email them sometimes with "you know there's a real RSS feed..." I don't feel like I present the email option with any more prominence either. Interesting user behavior.
74.
by jcrawfordor 2y ago
Room inspections are nothing new in Las Vegas, being the norm at many on-strip properties since 2017. In that way, the article perhaps misses the point. What was new this year were many reports of aggressive, confrontational behavior by sec
75.
by jcrawfordor 2y ago
Probably not a concern in federal acquisition, but it's an interesting point that Centronics pretty much only built the print head and control electronics. The rest was built by Brother in Japan, as a modification of their electronic t
76.
by jcrawfordor 2y ago
Most plastics of the era would not meet requirements for aviation fire safety, they produce toxic smoke when burning (still a significant problem today). There's an obvious tension between "reduced weight" and "not using
77.
by jcrawfordor 2y ago
These AT&T facilities were hardened against EMP to the era's military design standards, and AT&T participated in validation experiments using both actual nuclear detonations and EMP simulators. I've never seen any indicati
78.
by jcrawfordor 2y ago
It would vary by terrain and land use (e.g. agricultural), but generally just 2-3 feet deep by vibratory plow. Deeper emplacement and directional drilling were used as required to handle obstacles. For most L-carrier the entire en-route inf
79.
by jcrawfordor 2y ago
I'm an enthusiast and writer on the history of military communications technology, particularly during the Cold War. The internet is very much part of this story, and I am asked about this controversy from time to time. The problem is,
80.
by jcrawfordor 2y ago
The main reason NEMP (nuclear EMP) became a big concern during the Cold War is its potential for use as a defensive weapon. For example, a large part of military EMP research was done with the specific aim of hardening strategic bombers, af
81.
by jcrawfordor 2y ago
Lightning protection in these types of cables is well understood, since the telephone system contended with the same problem. Fortunately EMP effects are mostly accounted for by lightning protection, when it comes to the outside plant. Ther
82.
by jcrawfordor 2y ago
Very useful for reverse engineering and security auditing of internal APIs. Particularly on Android a lot of apps pin CA certs or use their own trust store, so you have to do a little RE on them to insert your own cert... Or do it this way.
83.
by jcrawfordor 2y ago
There's a difference here between "headless chrome" as a concept and "headless-chrome" the software. It's still pretty common to run browser automation with a full "headful" browser, in which case you
84.
by jcrawfordor 2y ago
The fact that this is EPEL strongly suggests that it was set up by an AWS user, not by Amazon themselves. EPEL is not used by default in any common AWS AMIs. Perhaps it is an Amazon Linux user who enabled EPEL via Amazon's package, but
85.
by jcrawfordor 2y ago
Eh, I did some work with a team building a robot for maintenance inspections on an accelerator. Their client had come to the conclusion that the cost-benefit on radiation hardened cameras was questionable, and advised them to select inexpen
86.
by jcrawfordor 2y ago
Very common on US freeways for work to be performed at night even though it's barricaded during the day. The barricades are to keep traffic off of work in progress, actual work may require additional lane closures, traffic disruptions
87.
by jcrawfordor 2y ago
I'm not saying how it should be implemented, I'm saying how it is implemented by a number of popular VPN services. Take up the argument with them. There are VPN providers that do it right on at least some platforms, but unfort
88.
by jcrawfordor 2y ago
Most practical VPN services don't actually implement it this way, it's a somewhat difficult and rather OS-specific problem depending on the firewall services offered by the OS. On some popular OS like mobile ones it's just no
89.
by jcrawfordor 2y ago
A reader has done exactly that and reports pretty confidently that the CD-ROM subsystem firmware is not Windows, and appears to be mostly hand-written assembly and probably by Hitachi. Unsurprising considering their prominent role in the
90.
by jcrawfordor 2y ago
embarrassing. fixed it. but wasn't the parallelism to WinWriter pleasing?

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