It is unlikely consumers shun Rivian for VW’s reputational issue.
I've never met anybody that shuns even VW for VW's reputational issue!
Readit Newsnorthwest65 commented on Volkswagen to Invest $5.8B in Rivian Through Joint Venture wsj.com/business/autos/vo... · Posted by u/mfiguiere
northwest65 commented on 3600 MHz Raspberry Pi 5 with Liquid Nitrogen skatterbencher.com/2024/1... · Posted by u/jonatron
My measurement technique was extremely simplistic - how much wall clock time does it take to do this computationally-intensive task. It ran faster with ice water, and even faster with the liquid nitrogen (until it died from condensation).
I truly don’t understand why this anecdote seems to be offensive - but let me assure you, I’m claiming no scientific discovery or prodigious understanding of cpus here.
It was neat - computers, liquid nitrogen, color charts.. in the early 90s. That kind of shit got you scholarships back in the day.
I think it's because CPUs don't run faster just because they're colder, they run faster when you overclock them. Often to get them stable at higher clock speeds you need more voltage, which at some point demands more cooling to mitigate that.
AFAICT doing interesting but ultimately trivially complicated stuff as a youngster can still result in scholarships etc, Ahmed Mohamed comes to mind.
The crosswalk pedestrian detection is using LIDAR fwiw. Provided the vehicle was equipped with V2X and the crosswalk had pedestrian detection it'd go something like this:
1. The crosswalk announces itself to the vehicle via a P2P 3G, LTE, or 5G connection.
2. The vehicle notifies the driver or the adaptive cruise control (if enabled) slows down while approaching the crosswalk.
3. The post with the crosswalk button on it has a LIDAR sensor that looks down the length of the crosswalk (and presumably another one facing from the opposite direction) and a relatively low power DSP digests the LIDAR input looking for approximately not-car shaped forms on the crosswalk.
4. The crosswalk announces a pedestrian on the crosswalk to the vehicles if a pedestrian presses the button on the crosswalk post or if a pedestrian form is detected on the crosswalk.
5. The vehicle alerts the driver or the adaptive cruise control comes to a complete stop, prompting the driver to resume when the route is clear (or when it no longer reports pedestrians using the crosswalk.
6. When the crosswalk timer is complete and no pedestrian forms are visible on LIDAR, the crosswalk announces an empty crosswalk to the vehicles.
So the "they didn't have their phone on them" defense wouldn't even begin to come into consideration.
Only nerds are dumb enough to think that adding LIDAR to every crosswalk in the world isn't a completely ridiculous idea.
If USA maintains nukes in Turkey that does not mean they have enough troops in Turkey to protect the base against the entire Turkish military, should they decide to steamroll it. They rely on nuclear codes more than they rely on tanks to stop nukes falling into the wrong hands.
They don't actually have to. The 5th and 6th fleet coupled with the various large air bases in the vicinity would have little trouble it pancaking the entire site before the Turks managed to make off with anything if it really came down to it. It's tanks all the way down.
northwest65 commented on How Olympics officials try to catch “motor doping” spectrum.ieee.org/motor-d... · Posted by u/belter
Rhymes with motor boating, there's also gonna be plenty of that, as usual :P
I feel sorry for the poor bastards that had to go to Tokyo. As I understand it, clapping the other super fit athletes is a great part of the experience of competing (father was an athletics coach).
northwest65 commented on How Olympics officials try to catch “motor doping” spectrum.ieee.org/motor-d... · Posted by u/belter
The idea is that different equipment is better suited for different individuals. By mandating a specific kind of equipment for all athletes, you'd be benefiting some individuals over others.
For example, road bikes have different frame shapes that are suitable depending on your torso length compared to leg length.
Of course, the natural next step would be allow some flexibility (different frame size but same material), but you can see how that could be a slippery slope of legislation and lobbying that would end up in a similar situation to where we are today?
Should hurdles be made in a range of sizes to be fair on short competitors?
northwest65 commented on Don't use 7-segment displays (2011) [pdf] harold.thimbleby.net/cv/f... · Posted by u/fanf2
Ah, but 7-segment displays are far easier to drive from a microcontroller, so even if an LCD is cheaper, it might make for a more expensive system.
I'm not a professional, but I find an LCD or OLED is a lot easier to drive from a microcontroller than a 7 segment or 4. Like a hell of a lot easier.
Captain Pedantic asks, "isn't 'electronic ignition' an ignition system that uses an electronic module instead of physical points?" I've not heard a definition of "electronic ignition" that cares about how the electricity gets to the spark plug. Instead, we are concerned with how we trigger the magnetic field to collapse and makes spark: is it the mechanical opening of a switch, or is it transistors?
And using that definition, we've had electronic ignition commonly put in cars since the 70s. Distributor, or lack thereof, has nothing to do with that definition.
Indeed, I too chuckled at that. Do you remember those hobbyist kits from the 80s for building your own electronic ignition unit? (i.e. points replacement)
I’ve worked as a mechanic and been hit by it before… I don’t think it’s as dangerous as you’d expect from the voltage. I think both the duration of spark, and current are very low.
At one of my first jobs, the workshop foreman would sidle up beside another mechanic who was working under the bonnet, casually put his arm on their shoulder or whatever, then touch a plug. It would make the other mechanic jump, but he himself seemed impervious (well steeled more like) to the effect.
Nah not for nothing, they paid you. If they want to pay you for dumb shit, that's on them.
You'll have to find a way to let go of the frustration though, that's the real problem here. I just try not to get caught up in what the business is doing, it's just a job, and their goals will never ever ever align with my own, so no point sweating it.
I work at a small company now. When my boss does something stupid, I tell so and why. Sometimes I need to change tact because that's what the business demands, but sometimes he's like huh you're right (generally for technical reasons, although the cognitive cost of task switching is real) and we stay the course. Either way it's nice to have somebody listen at least.