American perspective, but how about running them like the USPS?
I don't know the intricacies, but from what I've gathered, the USPS is operated by the government and intended to teeter right around the line of self-sustainability. They're required to provide service to "hard-to-scale" regions, like the middle-of-nowhere rural towns in Montana, without charging them an arm and a leg. This works, because their primary directive is not to "make stock go up", but rather to "get the job done and the mail delivered".
The key difference here, though, is that all of those electronics are integrated into, and do not break the path of, the absolutely-must-work hydraulic path.
Throttle-by-wire is a different beast entirely. If you step on the gas and don't go, that's usually very annoying, and depending on circumstances could be dangerous. But if you step on the brakes and don't stop, that's pretty much a guaranteed wreck right there.
> Your car will come to a stop on it's own when there's no electrical power left.
Newton's laws would disagree. "An object in motions stays in motion..."
GP is asking "what happens if the alternator dies, and the battery runs flat while you're driving?" This may sound like an outlandish scenario, but my uncle had something similar happen to him not too long ago.
And not all cars can run solely off the alternator when the battery is dead. Several years ago, my mom's Grand Caravan wouldn't start when she was out. She called AAA, and they jumped the car, and it started just fine. But as soon as the AAA guys disconnected their jumper pack, the van died. They tried it several times and weren't able to get it to stay running.
If your brakes require a fully-functional electrical system to apply any force at all, that seems like an unacceptable failure scenario.
To be a real emergency, it would have to also happen when you were planning on braking very soon. At least with my driving patterns most of the time I'm driving I'd be able to safely coast to the shoulder. The failure would have to coincide with a stoplight turning red or something. Hmmm, even the horn wouldn't be working without electrical power...
One consideration for aviation is that they have inspections, replacements, repairs, etc regulated like crazy. And I suspect it's regulated so tightly because it would be skipped otherwise, because that does NOT sound cheap.
Then compare that to an average car. If you change your own oil (like I do), it's possible to go multiple years in between trips to a repair shop for bigger items like tires or a weird noise that popped up.
And let's be honest, a large number of people will hear a weird noise and drive with the check-engine light on for way longer than any manufacturer would recommend (even if they didn't have a profit motive in the form of expensive dealership repair shops). If the machine gets to point B, then whatever that noise is can wait a few more days/weeks.
Mind you, I'm a PHP developer by day, so this Rust-vs-C debate and memory management stuff is not something I've had experience with personally, but the "Rust is magical" section towards the bottom seems like a good summary of why the developer chose to use Rust.
I'd agree, at least partially in my case: Container Tabs is a killer feature for me with Firefox. Especially compared with the Temporary Containers extension on automatic mode, basically each new tab is like a fresh browser profile with zero cookies/local-storage.
I might consider demoing Orion on Linux even if it doesn't have container tabs, but at this time I wouldn't consider a full switch without that feature.
I think you mean "ambient mode". Theater mode is like the halfway point between normal-size an fullscreen-size.
As an aside, does anyone know of any good YouTube settings extensions? I usually open YouTube in incognito tabs to avoid the personalization "features", but this means none of my preferences around ambient mode and "stable volume" are saved.
Since fiber is non-conductive, I've heard that it's code-compliant to run optical fiber in the same conduit as your power lines. (Normally, high-voltage and low-voltage conductors are required to be in separate conduits even if going to the same place.)
Of course, this requires that you ran your electrical in conduit instead of direct-bury, so this might or might not work for you.
I did exactly this when I built my shed (with the same justification) - running fiber in the same conduit as the power to the shed.
But, I found out during inspection that the Canadian Electrical Code prohibits this, unless the fiber is functionally related to the power lines it is running with (section 56-200).
The explanation I received for the rule, was that someone like a telco installer could try and follow the fiber line, and find themselves in a dangerous situation (inside an electrical panel they aren't trained to handle).
I was able to get an exception since I am the only one who will ever open the cabinets/work on this fiber, since it was not the main internet feed to the house, but just to an outbuilding.
You still have to consider conduit fill ratios (though fiber usually does not take up much room). But more importantly, you have to make sure the conduit terminates on both ends in some way that makes it easy for you to separate out the fiber and power wires accordingly. If the conduit goes from electrical panel to electrical panel it really wouldn't be ideal to pull the fiber through.
Running anything other than mains power in the same conduit as mains power is a bad idea, there are many codes and many “spirits” of the code that prohibit this.
PVC is insanely cheap, a separate (properly spaced!) conduit for telecom is the way, and is future proof.
Also, it can be ran through water pipes to retrofit areas that you dont want to dig up
And if you're really ambitious, you can run it through oil pipelines.
One of the first nationwide VOD networks was a private one run by a big oil pipeline company in Houston. I knew someone who worked on one of its daily live news shows that was transmitted that way to energy traders and oil/gas executives in offices across North America.
They made a mint selling the excess bandwidth to television stations and networks.
There's no way the fiber was run "through" the pipeline. They likely just used their right-of-way to run the fiber next to, attached to, or dug underneath, the pipeline.
I hope you don't mind if I believe the word of people who were actually involved with this over some rando on the internet second-guessing them 30 years later.
Pipelines are already filled with all kinds of electronics.
An oil filled anything has always been the gold standard to run wiring through. It’s insulted, temperature regulated, vibration resistant etc etc. also a huge pain if something does break … lol which fortunately is unlikely !
Sadly, the electrical was direct bury. I was hoping for conduit because I've had really good luck with prefab fiber assemblies in just this kind of application. No such luck here.
Depending on your lengths, budget, and your region's weather, might be worth giving second thought to just renting a little trencher and running a spare conduit or two (and maybe a water line too) then you're not locked in with one technology, and if that direct burial fails you can pull a new one in no time.
I enjoy getting dirty though, so I had fun hand trenching out to my shed -- didn't run water and I'm kicking myself
For tests, when in doubt, I don't touch the original tests and just add my own separately. That way I know that the old tests still validate the originally-intended behavior, and my new tests validate what I expect them to do.
If the tests aren't broken, is there ever a good reason to make sweeping changes to them?
I don't know the intricacies, but from what I've gathered, the USPS is operated by the government and intended to teeter right around the line of self-sustainability. They're required to provide service to "hard-to-scale" regions, like the middle-of-nowhere rural towns in Montana, without charging them an arm and a leg. This works, because their primary directive is not to "make stock go up", but rather to "get the job done and the mail delivered".