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somerandomqaguy
Joined 832 karma

  1. They shine best I think as alternatives to the 50cc segment; 60kph max with round trip taking 5km to 10km. At that point the limitations aren't a big deal. Anything beyond that's... iffy.
  2. Authorized software means authorized for that car's VIN number. Basically it's the same issue with parts in Apple products that are serial number locked.

    If for instance if you damaged a headlamp, and then went to an authorized BMW dealer, bought the correct brand new OEM BMW head lamp assembly from the parts department of an authorized BMW dealer, and followed the replacement procedure to the letter in the BMW service website... it won't work. The headlamp assembly is not authorized to talk to the rest of the car even though it's OEM, untampered, with stock firmware.

    The headlamp has to be reprogrammed with the correct VIN number in order for the rest of the ECU's in that particular car to recognize it as authorized.

  3. UN Regulation No. 155, and 156, and the Cyber Resilience Act (CRA) are requiring car manufacturers to implement cryptographic validation that allows only authorized software from the manufacturer to be run.
  4. Just my sense as an outsider, but a lot of interest in voluntary reunification got chilled after seeing China's actions in Hong Kong. A lot of it stems from lack of trust for the CCP to honor it's idea of a one county two systems form of governence.

    I don't know how much the Taiwanese would be willing to fight and die in a military invasion though.

  5. Yes to being worth building.

    The whole point of the navy is to be able to control waterways. The whole point of being able to control waterways is to be able to economically ship large amounts of material and people; in the case of warfare, soldiers, bullets, food, water, fuel, etc.

    An unmanned fast attack sub is going to be useless for defending your logistics fleet from strike fighters and anti ship missles. Even a dingy that has a guy in it with a rocket propelled grenade can send a cargo ship to it's grave. You have to have a surface ships with powerful defenses to protect them.

  6. They already are investing in the JSDF. The JS Chokai is in San Diego right now being equipped with Tomahawk cruise missles, but AFAIK the plan is to equipped all 8 Kongo class destroyers with those missles.

    And that's just one part of the expansion. But the short version is that the JSDF isn't staying a defensive only institution.

  7. It happens. The Jaws movies brought a lot of shark panic to public consciousness despite how utterly rare shark attacks are. The China Syndrome's effect on the nuclear industry given it's timing with Three Mile island.

    Probably more that I'm not aware of but it's common enough phenomenon.

  8. From the horse's mouth?

    >The CMNR reviewed many of these studies when they were initially completed and noticed that underconsumption of the ration appeared to be a consistent problem. Typically, soldiers did not consume sufficient calories to meet energy expenditure and consequently lost body weight. The energy deficit has been in the range of 700 to 1,000 kcal/d and thus raises concern about the influence of such a deficit on physical and cognitive performance, particularly over a period of extended use. Anecdotal reports from Operation Desert Storm, for example, indicated that some units may have used MREs as their sole source of food for 50 to 60 days—far longer than the original intent when the MRE was initially field tested. > >There have been successive modifications of the MRE since 1981. These modifications in type of food items, diversity of meals, packaging, and food quality have produced small improvements in total consumption but have not significantly reduced the energy deficit that occurs when MREs are consumed. This problem continues in spite of positive hedonic ratings of the MRE ration items in laboratory and field tests. The suboptimal intake of operational rations thus remains a major issue that needs to be evaluated.

    https://pubmed.ncbi.nlm.nih.gov/25121269/

    Or to summarize it; soldiers weren't eating the full MRE's in Desert Storm, and it a widespread problem. Soldiers that weren't meeting their caloric intake requirements were suffering cognitive issues while in combat operations. Bit of an issue when you've got two groups of people trying to kill each other and not their own side.

    So they figured the best option to get the soldiers to eat their rations was to keep improving and updating until soldiers were more inclined to eat the whole damn thing. I don't know if they've succeeded per say but they have been updating the menus pretty consistently since the 90's. I think only the beef stew and a few other meal items have stayed consistent over the last 30 years of MRE's.

  9. Not exactly easy. The US military (hell just about every army on the planet) spends a lot of money and effort into developing field rations that are palatable enough for infantry sections on the move to eat in it's entirety. I can't imagine developing it for far more numerous school children is going to be any easier.
  10. Ah, I wasn't aware the Fiesta discontinued outside as well. AFAIK Ford did so to retool Cuautitlán Assembly plant in Mexico from the Fiesta to the Mach-E. Looks like Cologne Body & Assembly is going to be producing Ford's EU electric CUV's instead of the Fiesta.
  11. There's always option 3.

    Keep product lines and factories semi targetted for their individual markets. Ford discontinued the Fiesta in North America but they are still being built in the EU AFAIK. Major car markets product their domestic auto industry anyways so you're probably going to have to setup local production in any case.

  12. ...... Huh? Kia and Hyundai's recalls for the trailer hitch wiring fire recall made national news. Toyota's recall of the rear view camera issue on the 2025 trucks too.

    Granted I'm Canadian so that might make a difference, but Tesla recalls aren't the only one making national new. They just don't typically appear on Hacker News.

  13. Doesn't really make any sense to in that example.

    Where ever you're putting the TV you have to put in regular power anyways, so it's fairly tidy to just put the device's power cable parallel with the TV's power cable. WiFi will handle communication. On the other hand, NEC and CEC requires minimum of 2 inches gap for communication wiring to electrical so you're now you've got that minor complication.

    POE makes sense mostly when it makes sense to combine communication and power cabling. Corded phones, wifi access points, security cameras, small touch screen modules, etc. Not saying what you're doing can't work, but the added expense of installing parallel CAT6 everywhere doesn't seem worth it.

  14. ...these are kind of quaint, honestly.

    The FZ-40GZ-0SBM is almost $8000. You get an Intel Core Ultra 7 165H, 32GB of RAM, and 512 GB of SSD space. Intel integrated GPU only.

    The Getac X600 Server Laptop be decked out with a Xeon W-11865MRE, 128GB of RAM, and 6TB of storage space (no GPU again), but it'll run you a cool $17,000.

    IIRC they weigh 7 to 10 lbs, so not terribly light either.

  15. The wealthy are buying larger more expensive vehicles. The poorer are either holding onto their existing cars (the average age of an American car went up from 11 years to 12 years or so) or buying the used larger ones from the wealthy.
  16. There was a live USB version of windows; Windows to Go. Microsoft stopped supporting it about 6 years ago for some reason.
  17. By Canadian law IIRC it's 30 minutes every 8 hours or so. However it can still be split up to 2x 15 minute breaks, and it's only a break from driving; loading/unloading, inspections, hooking up or unhook, paperwork, etc is counted as as taking a break.

    The lower provinces allow up to 13 hours per day of driving and a total 14 hours per day on duty time before you're required to take a 10 hour rest in a single 24 hour period. The northern territories I believe legally allow up to 15 hours driving per day.

    That's just what I've read so take it for what it's worth.

  18. There isn't a low pressure braking region in the brakes.

    But brakes can get really hot. Passenger brakes can easily get over the boiling point of water. Keep braking long enough and adding enough heat, and they'll get over the boiling point of brake fluid under pressure.

    Thing is, brake fluid is incompressible. Brake fluid vapor however is very much so a compressible gas. Even more so: the water in the brake fluid has an even lower boiling point then that.

    So stomping on the braking quickly isn't going to cause much of a problem. But if your riding the brakes down hill for a long distance with 12 year old brake fluid in hot Florida summer on very heavily loaded car? That... might get you into a spot of trouble.

  19. Can't agree at all about a sight glass. The lowest point in nearly every brake system is the brake calipers themselves. Wheels going to make it difficult anyways on a car. Not to mention the risk of a rock striking and damaging rigid glass. Or the old interface that's sealing the glass to the calipers wearing out and causing a leak.

    It's not worth the expense to manufacture and it's not worth the risk. Not when a litre of DOT4 is $20 and that only needs replacing every 3 years at an aggressive schedule for passenger cars.

    Larger vehicles you can purchase a brake fluid tester, but most of the really large ones I know use air brakes anyways.

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