jws

99 ms·

451.
by jws 8y ago
There is a company working on it… https://en.m.wikipedia.org/wiki/Mosquito_laser The current plan is a ‘fence’ which will detect, identify, and kill 50 mosquitos per second. It can be tuned to only kill female mosquito
452.
by jws 8y ago
If you store your data under /run (or /var/run) your district will probably put it on a RAM disk. You’ll lose it in a crash, but you won’t be writing to the SD card and provoking it to corrupt in that crash. If you then adjus
453.
by jws 8y ago
I’m sure it would give people discomfort, but I wonder how it would work if the kernel presented a pseudo file system with an “include” and a “src” directory to provide C interfaces to the unassimilated syscalls. Just enough syntax to keep
454.
by jws 8y ago
It's very useful. I use it for scoping the holding of locks. It replaces the idiom where you make a separate function to hold the 'when locked' code and pass all required state back and forth with nice clean inline blocks of
455.
by jws 8y ago
If it bothers you, you can remove the anodization chemically with household products. That gets you to silver, but easily scratched. Then you can anodize it using more household and hot tub chemicals and a current limited power supply, a be
456.
by jws 8y ago
The two I installed this week are using 70GB and 90GB all set up for development with my files. I think there are plenty of people who needn’t spend on an extra 128GB. Especially since the USB ports are plenty fast for bulk, non speed criti
457.
by jws 8y ago
Your solar collectors will still be pulling in 1/3 of summer sun in the middle of winter (rough estimate, varies by latitude and weather, void above arctic circle). At the edges of winter you’d even be gaining energy still, so let’s sa
458.
by jws 8y ago
My parent’s table pads do precisely that. After a particularly baffling family tech support call I drove over. Their kitchen table pads magnetically lock to stay nicely aligned, and also either put a laptop to sleep, or keep it awake when c
459.
by jws 8y ago
You had my hopes up for a minute there, until I checked portability… malloc_usable_size() is a GNU extension, so usable on Linux. MacOS has malloc_size(). One web page [1] says the GNU one is about 10 cpu cycles and the MacOS one is about 5
460.
by jws 8y ago
Do you mean in addition to the three pages of GIS providers listed in their licensing section?
461.
by jws 8y ago
The problem here is that the buyer is dead and knowledge of the basis may be lost. It could be written down in a safe place, but not known to estate's executor.
462.
by jws 8y ago
Conspiracy theorists allege a connection because Canada's largest generic drug company donated drugs to some aid projects in needy countries. Barry Sherman founded the drug company and some of the aid projects were Clinton Foundation p
463.
by jws 8y ago
At the generational time frame, the estate tax serves to capture otherwise untaxed asset appreciation… Consider Grandpa buys an asset; as company, land, a football team, whatever. 50 years later Grandpa dies and his will transfers it to you
464.
by jws 8y ago
And 3% on the lost 5% were after I ONLY ONCE let it go to full discharge. It is probable that what you saw was your capacity gauge calibrating to the actual capacity of the battery. The device doesn’t actually know its capacity until it h
465.
by jws 8y ago
This doesn't work for widely usable skills with a mobile workforce. Consider… Company A hires a worker and invests in training them, then before they can get their value back out of the education the worker changes to a higher paying j
466.
by jws 8y ago
I wonder if people said the same thing when elevators went from manual motor controls to automatic push buttons.
467.
PiDP-11: Recreating the PDP-11/70(obsolescence.wixsite.com)
68 points by jws 8y ago|39 comments
468.
by jws 8y ago
There is an interesting blind spot in the article. When the author has two paragraphs shown, one greedy and one Knuth-Plass and declares the second to be "more rectangular" it only looks so because of the colons added to the secon
469.
by jws 8y ago
We forgot how insane it is to pump explosive gas into our houses beacause we’ve gotten so good at it. I was remembering a similar accident near me, and it turned out to be 1982. That’s a lot of unremarkable years in between. (1982) A state
470.
by jws 8y ago
The way teach this to people is: You have a holding hand and a grabbing hand. Alternate which way your thumb is pointed with your grabbing hand. I usually grab with my thumb toward the far end of the able first, then the next grab my thumb
471.
by jws 8y ago
I share the author’s concerns for off grid power use. 3 watts per drive (I assume a wall wart for a 3.5” drive) works out to 72watt hours per day. About 1/10th of a $200 solar panel. Double or triple that to cover batteries and electro
472.
by jws 8y ago
Noise power and perceived volume are nonlinear. When the article says: These simple ridges have reduced noise levels by more than half. they are speaking of power. This means a reduction in perceived noise of about 1/6th. It is about
473.
by jws 8y ago
The horse powered dredge boats are interesting to compare to today's technology. They don't specifically give dimensions, but considering the space it takes one horse to walk, plus some extra space for dredging and boat functions,
474.
by jws 8y ago
…switching out the fluorescent tube lights in its factories for LEDs that would consume about one-seventh the amount of energy. Something is wrong here. Fluorescent tubes to LEDs is more like a ½ savings. I suppose if you reduce overall l
475.
by jws 8y ago
…gain user traction faster than HEIF. In less than one year from introduction, about a half billion iOS 11 users† are using it as their default photo format. Not bad for traction. Of course it wasn't their decision, it just sort of h
476.
by jws 8y ago
…so that extension cards and entire clones could be made. IBM had no intention of allowing clones. They relied on their proprietary BIOS to give them control of the product even though they were licensing an OS from another party. This fa
477.
by jws 8y ago
…something that didn't look too much like an antenna… The Raspberry Pi Zero W has a perfectly serviceable antenna which is simply a cavity formed between layers of copper and two tiny capacitors which look about like grains of salt.
478.
by jws 8y ago
Dry air also increases the probability of static damage. They probably can't use outside air exchange to cool the server room. I imagine just circulating your nice toasty air into a larger area filled with moist humans who want to be w
479.
by jws 8y ago
It depends on your hardware. If your RGB are in a different spatial order from the originator it actually makes it worse. Consider the 3 and 4th images, the "on light" AA and non-AA versions… Look at line number 10, the "let
480.
by jws 8y ago
You can see videos of people doing this. It is very low power, but they can turn their corona motors. e.g. https://youtu.be/qhXxSAv6rMg

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