exmadscientist

7 ms·

61.
by exmadscientist 3mo ago
Somehow I only managed to end up on one of these gorgeous birds once. In seat 64K, NRT-DTW (or was it NRT-MSP?). The main cabin is... nothing to write home about. I was in no hurry to book another 744 leg. Upper deck, perhaps a different
62.
by exmadscientist 4mo ago
Not really. They're trying to split up potential causes of failure between: 1. "Funding" meaning: We knew what we had to do but didn't have enough money to do it; if we had, this path would have worked (though why it say
63.
by exmadscientist 4mo ago
Right -- if you're invested in the NASDAQ 100 (most people aren't, directly or indirectly), get angry. Or get out, if you can and it's not too late. Everyone else has dodged this bullet. I'm surprised, pleasantly, that S
64.
by exmadscientist 4mo ago
> I will never understand why so many otherwise smart people keep trying to make nuclear happen in their minds. I don't really get this either. I've come to think that it comes down to two pieces. The easy piece is that some pe
65.
by exmadscientist 4mo ago
Or, to say a little more explicitly what you're getting at: when you take a logarithm of some quantity, log x , x absolutely must be unitless. There's no way whatsoever to take a logarithm of something with a unit attached. (Th
66.
by exmadscientist 4mo ago
Robots that cannot share sidewalks with humans, including humans in wheelchairs, should be banned from sidewalks. Full stop. End of discussion. They can use the streets proper if they want to. I'm sure there is some way to formalize th
67.
by exmadscientist 4mo ago
The article is making the case that this is not healthy for society. It is the kind of thing that's fine if 5/100 do it, seriously worrying if 50/100 do, and basically fatal to civilized society if 99/100 people do. And
68.
by exmadscientist 4mo ago
I think that's an unusual scenario, and I'd ask you to consider that that's probably not the argument I was making. Most of the dozens and dozens of people I see in daily life sealed away in their earbud pockets do not appear
69.
by exmadscientist 4mo ago
Being able to do it in the middle of a riot is, absolutely, a hard-earned skill. But it is, like so many of these things, a skill. You have to practice it. I think that putting earbuds in and checking out of the world around you is a really
70.
by exmadscientist 4mo ago
Talking to strangers is a skill. You can practice it! I've made a point of trying to practice, albeit halfheartedly, and even though it's difficult for me, because I like it when other people try to talk to me . Earbuds stop th
71.
by exmadscientist 4mo ago
The actual "make it go bang" bit here isn't the most potent. (I think I have capacitors here which wouldn't care in the least about this, despite their datasheet ratings.) If you need to take it to the next level, consid
72.
by exmadscientist 4mo ago
The ads showed up when the launcher got a major redesign, and the Google TV (or whatever they call it this week) launcher is a Google product. I seem to remember that nVidia delayed shipping the new enshittified version for quite a long tim
73.
by exmadscientist 4mo ago
My point, which matches what you've written out in more detail, is that there's supposed to be stuff (resistors) in the cable, stuff which is often not there. There are plenty of these abhorrent cables in the wild. And when you
74.
by exmadscientist 4mo ago
The 4.7k "default pullup" is an old-school 5V TTL thing. It works really well for TTL inputs. But CMOS inputs don't really care very much, especially if they aren't toggling or if there's a bit of hysteresis on the
75.
by exmadscientist 4mo ago
The controlling standard is usually 62368, and the target is usually being a "Limited Power Source", which is 60V or less, and 100 VA max.
76.
by exmadscientist 4mo ago
Right. That phrase "standards-compliant" in the above comments is doing a lot of heavy lifting. A lot of devices are not actually standards-compliant. Some are close . (This may actually be worse.) My experience has been that if
77.
by exmadscientist 4mo ago
I was speaking a little more towards the AliExpress end of things, which is a sadly high proportion of the devices out there. For the midsize CMs and up, you're right, they've got piles and piles of stuff and don't charge by
78.
by exmadscientist 4mo ago
How is it an overcorrection to describe their actual behavior? They're still an important part of the protection hierarchy. Nothing else does what a good fuse or circuit breaker does. You just can't count on them to do things they
79.
by exmadscientist 4mo ago
That's how it's supposed to work, yeah. But there is some trash out there in the world. A lot of it, actually. Some naughty cables work with some naughty chargers work with some naughty devices. Postel's Law in action
80.
by exmadscientist 4mo ago
The A-to-C cable often does not work because the resistors are supposed to be in there . So if you are having complete charge failures, try a different cable.
81.
by exmadscientist 4mo ago
It's two resistors, actually. But they cost $0.0003 each (that's 0.03¢, or just around 3,333 of them for US$1) from distributors. Though there appears to be a bit of a stock crunch right now. So... yeah. The bigger issue is not re
82.
by exmadscientist 4mo ago
> And if USB-C could somehow provide a range of voltages to the motherboard, SFFPC's could be downsized even more You reeeeeeally don't want to do that. Cable inductance is a big deal, among other issues. You want the main DC-D
83.
by exmadscientist 4mo ago
Obviously you ripped it off from my comment a while back https://news.ycombinator.com/item?id=42121502 :) Seriously though, it's a good format! It works!
84.
by exmadscientist 4mo ago
> hitting that Zone 5 briefly is a good nervous system reset I ended up doing this inadvertently earlier this week due to some medication side effects (yay akathisia!) making me want to go outside and just seriously run fast, including u
85.
by exmadscientist 4mo ago
That's a good design for input overvoltage protection (assuming I've drawn the correct schematic in my head). But it doesn't help against most other fault conditions, particularly anything to do with the load/downstream
86.
by exmadscientist 4mo ago
The TPS62140's 30ns propagation delay is not enough to blow a fuse. The first rule of fuses (which many modern engineers do not understand!), is that fuses are not there to save your parts, and they simply will not do that. Fuses exist
87.
by exmadscientist 4mo ago
I think it's not so much about the money as the "When you had to walk into a store... [and] be stuck with it" part. That is, the problem was actually automatic/Internet-enabled updates. With the physical model you chos
88.
by exmadscientist 4mo ago
>aren’t they Microsoft? Couldn’t they order whatever parts they wanted to spec? Economically and logistically, yes, absolutely. Would it have had positive ROI (stuff like that is expensive )? Who knows, there's a lot of factors to
89.
by exmadscientist 4mo ago
That's actually what a lot of Brother printers do with their default or generic drivers. Except... it's JPEG, not PNG, so you get artifacting. Drives me crazy. Installing the specific driver like it's 1999 works well, but mos
90.
by exmadscientist 4mo ago
> One of the Surface things split into two parts, the screen (containing the actual computer) and the keyboard. There was something weird about connecting and disconnecting those parts, some motorized docking/undocking mechanism, th

More ›