kenhwang

48 ms·

541.
by kenhwang 7y ago
Tesla's way of opening up patents is interesting. Hopefully someone more knowledgeable on the topic can chime in, but my understanding is that Tesla's just saying they won't initiate a lawsuit if they believe you're usin
542.
by kenhwang 7y ago
It's just political suicide to use eminent domain these days, but if the political climate changes, maybe it'll be used again. The power as written is pretty powerful and has only gotten more powerful and broad every time it'
543.
by kenhwang 7y ago
Apparently enough people care enough. Otherwise this wouldn't be such a contentious debate topic.
544.
by kenhwang 7y ago
I actually don't think it's working out. People in general are awful at risk assessment. But, Americans like their choice, even if it means the majority of them will make poor ones. It's also a downward spiral. The more peopl
545.
by kenhwang 7y ago
There's a choice component to health. Sure, you can lose the genetic or environmental lottery and just be unhealthy. Or you can choose to be unhealthy. Smoking, drinking, drugs, poor diet, lack of exercise. These are by far the biggest
546.
by kenhwang 7y ago
Man, if one of Go's pros is "good package manager", I'd hate to see what terrible package managers he's experienced. Seems weird to call out Java package management as a con in comparison. I love Scala's type s
547.
by kenhwang 7y ago
I just did an upgrade from 4.2 to 6.0 and the process was definitely much smoother than previous Rails upgrades, suspiciously so. Glad people are working on improving the upgrade path because it used to be rather painful.
548.
by kenhwang 7y ago
They probably just have different blends of city/highway/speeds. Just like how gasoline cars have different estimates from different testing agencies, electric cars do too because they all have different efficiency curves. The rat
549.
by kenhwang 7y ago
For 83.6kWh usable battery on the e-tron vs 95kWh on the Model X.
550.
by kenhwang 7y ago
The e-tron is similar in weight, size, and power to the Model X and pretty much gets within 10% of its efficiency comparing WLTP ratings. I think the efficiency loss can be explained by cooling (if this article is to be believed that Audi h
551.
by kenhwang 7y ago
NMC batteries needs to be much bigger/heavier to match the capacity of NCA due to NCA's better energy density. Then you have both the increased weight and increased cooling burden associated with the larger NMC battery that negati
552.
by kenhwang 7y ago
The biggest advantages of NMC over NCA are: - NMC can charge and discharge faster - NMC has longer cycle life - NMC is more heat tolerant Advantages of NCA over NMC are: - NCA is cheaper due to less cobalt use and no magnesium with slower g
553.
by kenhwang 7y ago
No one's beating Tesla's range because no one is willing to use the NCA battery chemistry. All the other automakers stick to NMC (for very good reason). Tesla will have a ~20% range and cost advantage just by nature of using NCA o
554.
by kenhwang 7y ago
Electric motors are pretty much opposite of gasoline engines. Motors have peak torque at 0-2krpm and it drops off rapidly after that. Gasoline cars tend to hit peak torque near the end of their rpm range (ignoring turbos that can change tha
555.
by kenhwang 7y ago
That's just a default configuration difference. You can configure it to do lift-off regen if you like. There's also a camera based auto-regen mode that can switch between coasting and regen based on the distance to the car in fron
556.
by kenhwang 7y ago
Primarily for cosmetics since it generates much less brake dust, but it's also has a shorter stopping distance due to increased coefficient of friction from increased contact area and seems to be more resistant to fade. https:/&#
557.
by kenhwang 7y ago
The Taycan currently only comes with two brake options: carbon surface coated brakes or full carbon ceramic brakes.
558.
by kenhwang 7y ago
But by switching over to the Model 3 powertrain, Tesla will lose their 0-60 crown. The 3 might have better cooling motors, batteries, and efficiency, but the S launches faster despite being much heavier. So Tesla gets to pick whether they w
559.
by kenhwang 7y ago
The old Model S had a hard time keeping up with a Nissan Leaf on the track. https://cleantechnica.com/2019/07/16/how-did-a-nissan-leaf-b...
560.
by kenhwang 7y ago
Mazda dumped a bunch of R&D and complexity into their transmission for "only" a 4-7% (AT)¹ and 1% (MT)² efficiency improvement. I guess in the automotive world, you're fighting for every last %. ¹ https://www.m
561.
by kenhwang 7y ago
I'm skeptical Tesla can even roll out the Model Y before 2021. Meeting deadlines has never been their strong suit. Rimac pretty much stole the show in the electric supercar segment already.
562.
by kenhwang 7y ago
I let candidates use their phone to Google or ask me to Google on their behalf. What they're Googling for never matters in the context of the interview and it's mostly to make them feel more comfortable. It's a whiteboard, I&
563.
by kenhwang 7y ago
My personal experience with Audi was what you described. Car was involved in a fender bender. Insurance said bring the car to any shop. New parts were ordered (presumably pre-painted) and installed with the car returned in 3 days.
564.
by kenhwang 7y ago
What happened with the Model 3 in 2019 that would cause the drop off in 2019 sales? If anything, the Model 3 would've impacted sales from 2017-onward when it was introduced.
565.
by kenhwang 7y ago
That's an interesting interpretation of the data. To me, it looks like Model S/X sales have noticeably dropped since the introduction of the Jaguar and Audi. I don't think there will be a singular Tesla killer, but rather, Te
566.
by kenhwang 7y ago
By vetting applications, presumably. I would imagine it's mostly professors in well known universities and corporations closely affiliated with Apple getting access.
567.
by kenhwang 7y ago
LastPass makes the browser slower and sometimes even locks up the tab. It definitely does happen.
568.
by kenhwang 7y ago
Canon needs the consumer market to subsidize R&D costs for the professional lines. I'm sure the they're not selling at a unit loss, but like all R&D heavy manufacturing industries, there's a lot of fixed capex that&#x
569.
by kenhwang 7y ago
Can the people who take photography seriously sustain Canon's camera business on their own? That's the main problem.
570.
by kenhwang 7y ago
They missed market expectations. They lost 6x more money (-$2.31/share vs expected -$0.35/share) and sold less cars ($6.3b sales vs $6.5b expected) than the market wanted with more capex to come (China Gigafactory, Model Y).

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