jws

46 ms·

481.
by jws 8y ago
Credit cards definitely have check digits, pretty sure bank accounts don't… My (US) bank issues account number serially. No check digits.
482.
by jws 8y ago
Imagine making a turn and your engine dying mid-way… Present vehicle excepted maybe, but automobiles have come a long way if this seems like an unimaginable event. Random engine loss was just a “to be expected” event when I learned to dri
483.
by jws 8y ago
The afflicted Linux devices will be spoiling the commons, even if they can still get their own data sent without stalling. Instead of combining frames for more efficient use of the available wireless channel they will be sending an individu
484.
by jws 8y ago
It varies, but a call to your local jurisdiction can get a shade put on a light. My city painted a segment of the nearby intersection’s diffuser black so it doesn’t shine in my eyes when I’m on my balcony.
485.
by jws 8y ago
Unless you are adding TCP to your CDC6600 or PDP-8, bytes are 8 bits. Any suggestion to the contrary in standards is fantasy. That said, since the next field is a uint16_t, you may as well stay in Rome and call them uint8_t. short really
486.
by jws 8y ago
TL;DR – article is just click fodder. Ants have a safe terminal velocity and probably won't pop in the elevator on the way up from pressure changes, but no experiments were performed.
487.
by jws 8y ago
I wonder if it offsets the surplus birds created by bird feeding. According to USA WILD BIRD FEEDING INDUSTRY YEARLY RESEARCH 2015 [1] US consumers spend about $6B on bird seed annually. I pay about $1/lb (or a pound per kilogram ;-)
488.
by jws 8y ago
Tangentially related, but important if you do any sidewalk work… Those bumps on the ramps are not for traction, they are tactile clues for the blind. Do not use the bumped pavers decoratively to make interesting patterns! They come in a v
489.
by jws 8y ago
There is a camel dairy west of San Diego. They have tours one weekend a month if you want to go. https://cameldairy.com/ — they also win the obvious url prize. Apparently it is illegal for them to sell the milk for consump
490.
by jws 8y ago
More model than computer, but from 1939 to 1972 there was a water driven model of the Mississippi River basin used to solve the flood models. It covered 200 acres (a little less than 1 square kilometer) and was useful until computers replac
491.
by jws 8y ago
The engineering choices are interesting here. Can you cover most conditions with a balloon and a kite? Can you make a kite which can be inflated to turn it into a balloon? (Looks like clever people have already been here: Kytoon – a balloon
492.
PiDP-11: Recreating the PDP-11/70(obsolescence.wixsite.com)
1 points by jws 8y ago|0 comments
493.
by jws 8y ago
I was envisioning a little village of houses with trains, but peeking from the satellites, it looks like one fork and only one guesthouse has rail service (Familie Siefert - Hallig Nordstrandischmoor). There seem to be a couple of guesthous
494.
by jws 8y ago
People without housing who are not moving already know the answer.
495.
by jws 8y ago
You (sir|madam), are a feature creep. If it weren’t for people like you and their “real requirements” software would be easy. By the time you say “unicode” and “collation” the programmer is going to be in serious trouble. Fortunately the pr
496.
by jws 8y ago
For reference, a megawatt (MW) is 13000 humans cranking generators. You might get by with fewer since the problem being addressed is short bursts of capacity mismatch.
497.
by jws 8y ago
Not a citation, but when I last looked at it for a cabin, the plumbing costs, pumps, and extra stuff required in addition to the normal heater drove the cost so high that it was just cheaper to add more PV panels, which have been coming dow
498.
by jws 8y ago
The threading section has a reasonable warning sign before the tiger… All threads can read and write to all memory within that process. This is extremely dangerous, so avoid threading until you have fairly well mastered C without threads.
499.
by jws 8y ago
I've used it in an experimental OS for the sort of work one might use shell scripts or small configuration programs for in Linux. I can say that literally the only annoyance was that back then the API docs had some "headings only&
500.
by jws 9y ago
It looks like maybe a factor of 3 or so energy efficiency improvement is available for desalination. Current efficient processes are around 3kWh/m³†. The thermodynamic limit is about 1kWh/m³‡. That can be improved a little if you
501.
by jws 9y ago
They have palette shifting robots running around the warehouse. They should just put a port-a-potty on one and let the workers summon it with a Dash button.
502.
by jws 9y ago
I think you might have a decimal off. 100/62763 = .0016 = 0.16%
503.
by jws 9y ago
Yes, there are significant female characters, I think primarily academics which in context are the most important kind of people. I didn't notice anything off when I first read it, but that was in the 1970s and I was a young studious m
504.
by jws 9y ago
The Foundation could use modernization. The "big ideas" are still interesting, but the nuts and bolts of putting characters in a world to act out a story has them inadvertently soaked in late 1940's United States culture. I h
505.
by jws 9y ago
I'd be interested to know who the unnamed sources that fed the false narrative to Bloomberg and the WSJ about it being a SpaceX problem were. (I think those were the originating news organizations, but I may be remembering that wrong.)
506.
by jws 9y ago
My keyboard has a 72MHz 32 bit processor‽ I think I was on my 7th computer before I had one that powerful.
507.
by jws 9y ago
How about a fruit basket? I buy that without knowledge of what I am getting. But I think the sellers have badly communicated what they are selling. I don't think random applies to the amount. I think they might mean to say a collecti
508.
by jws 9y ago
There is a privacy push in this release. Immediately after upgrade you will get a page letting you know that "Apple believes privacy is a fundamental human right…" and explaining steps they take to help with that, along with int
509.
by jws 9y ago
Is it that different from if I sell you a Euro, a Yen, a Dollar, and a Pound? They are fungible items whose value fluctuates. How about if I sell you scrap gold jewelry on eBay? It's value will change before you get it and neither of u
510.
by jws 9y ago
From the release notes: - Fixes an issue on iPad Pro that prevented the iPad Smart Keyboard from working after connecting to a captive Wi-Fi access point I was sure mine was broken while I was staying with a family member in a hospital, t

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