em3rgent0rdr

9 ms·

121.
by em3rgent0rdr 1y ago
The word used to pray to Unut is 'ohm', I believe...
122.
by em3rgent0rdr 1y ago
Norwegian city uses pneumatic tubes to whisk trash away. Not "vacuum tubes"... (◔_◔)
123.
by em3rgent0rdr 1y ago
Reminds me of the "WESAYSO" company in the 1990s sitcom Dinosaurs.
124.
by em3rgent0rdr 1y ago
"alexwest.com" more like "alexsouth.com"
125.
by em3rgent0rdr 1y ago
All the open source software that we can already use for free is a big reward. The funny thing is this reward was already provided to us. So contributing to open source software could be though of as our payment for that reward. The fixed b
126.
by em3rgent0rdr 1y ago
There is a place like that today. It is called "Nokia Bell Labs".
127.
by em3rgent0rdr 1y ago
Sure, log scales are done quite often with SI prefixes for absolute (non-ratio) data that doesn't have a standard reference (which is the case for component datasheets). But dB can be more convenient when you want to present logarithmi
128.
by em3rgent0rdr 1y ago
Its like why we use percent from 0% to 100% instead of speaking of ratios from 0 point something to 1.
129.
by em3rgent0rdr 1y ago
> I don't see a practical reason why dB's normal use can't have been covered by normal prefixes Because instead of numbers going like 1, 10, 100, 1k, 10k, 100k, 1M, 10M, 100M, 1G, and so on when using prefixes, we get a mu
130.
by em3rgent0rdr 1y ago
> For some reason, the bel — again, what started as a sensible 10× increment — was soon deemed too big to use. I don’t quite know why: in other aspects of life, decimal notation suits us just fine. Decimal notation can be a tad cumbersom
131.
by em3rgent0rdr 1y ago
Just like that, Bob's your uncle and Holy father.
132.
by em3rgent0rdr 1y ago
When spice simulation isn't deep enough... Very educational to show how circuit elements work "under the hood"...for example the LC example doesn't use an L element and a C element as building blocks, but rather it is th
133.
by em3rgent0rdr 1y ago
b: while Python is not a high-performance language, python coding is easier than high-performance languages. And programmer time is valuable. But if after coding a project in python, the developer may then find that they need higher perform
134.
by em3rgent0rdr 1y ago
And if you want to release a library, or if your program depends on tons of libraries, then a webpage doesn't make sense.
135.
by em3rgent0rdr 2y ago
The US still taxes you. There's also an expatriation tax.
136.
by em3rgent0rdr 2y ago
The government should just write its tax law as a spreadsheet.
137.
by em3rgent0rdr 2y ago
> multi-core programming in 2006 was absolutely anemic OpenMP was around back then and was easy.
138.
by em3rgent0rdr 2y ago
tdeck is making fun of the way the article is written.
139.
by em3rgent0rdr 2y ago
More precisely "pulse width" would be a time, while "duty cycle" would be a percent. And while when going from 0% to 50% duty cycle it could be said that "a square wave with a low pulse width will sound thinner than
140.
by em3rgent0rdr 2y ago
Yes, but the RPi is not yet quite a standard desktop/labtop workstation. And it would be nice if the RPi exposed its SPI, I2C, and UARTs over a standard mini connector like JST-SH connectors to ease plugging in peripherals (like is don
141.
by em3rgent0rdr 2y ago
Yeah, and LVDS is something that really cheap ice40 FPGAs support with not much of an area cost. (In my original comment I should have said to use differential signaling for going off-board.)
142.
by em3rgent0rdr 2y ago
Well yeah, nowadays high-end micro-controllers may have an integrated USB HS PHY (notably STM32F7's and the MIMXRT1060 used in Teensy 4, and many others), but the basic cheap attiny-like or ice40-like hasn't and most usually requi
143.
by em3rgent0rdr 2y ago
These (and hotswapping/handshaking) are small quibbles that could be addressed with a simple standard subset of SPI for human-plugable devices.
144.
by em3rgent0rdr 2y ago
https://wiki.wireshark.org/CaptureSetup/USB says "Software USB capture captures URBs (USB Request Blocks) rather than raw USB packets." So Wireshark couldn't give you the CRC, which would be stripped awa
145.
by em3rgent0rdr 2y ago
I'm always a bit saddened to see that a separate chip is the go-to method to interface with USB. Unfortunately USB is an incredibly-complex protocol that it seems anything beyond a basic V-USB running USB 1.1 at low-speed is generally
146.
by em3rgent0rdr 2y ago
Why are lithium ion phone and labtop batteries still legal considering their saftey risks? There are safer battery chemestries that aren't quite as energy-dense. But phones and laptops were capable-enough 15 years ago and performance-p
147.
by em3rgent0rdr 2y ago
Unfortunately, that 'sell back to grid' price is often only a small fraction of the ~17 cent/kWh purchase price from the grid. The battery is less for backup but is instead to help make economic sense for your home, by storin
148.
by em3rgent0rdr 2y ago
Great if you are a skilled electrical engineer who owns a bunch of land somewhere that doesn't have any fire risk.
149.
by em3rgent0rdr 2y ago
Commercial solar home battery use safer battery chemistries which don't experience thermal runaway like lithium ion labtop batteries do..
150.
by em3rgent0rdr 2y ago
Yeah. Commercial home solar battery power as I understand is done with safer chemistries, such as lithium iron phosphate, which while they have a lower energy density (which is not a big downside for a stationary building) don't hav

More ›