planteen

25 ms·

211.
by planteen 8y ago
When did we switch to talking about that (the 'before' part)? This thread is debating the OP's comment about how flooding in Calgary either gave people the choice in moving or never receiving assistance in the future.
212.
by planteen 8y ago
Elected officials force people to move in Rapid City, South Dakota after the 1972 flood. Today, the flood plain is a very nice bike path with no houses. This probably happened due to the high deal toll (238 fatalities). "Many businesse
213.
by planteen 8y ago
> C is not meant for writing secure, mission-critical applications What OS kernels are actually used that are written in anything other than C? Plenty of them (INTEGRITY, VxWorks, QNX) written in C are used in secure, mission-critical ap
214.
by planteen 8y ago
Flash must be erased on a page boundary, the size of which varies, but ranges from 512 bytes up. The act of erasing a flash page turns all bits to 1s (0xFF for the entire page). When the flash IC breaks, you can usually tell by doing a blan
215.
by planteen 8y ago
A common distinction is between hard real-time and soft real-time tasks. Hard realtime means that missing a deadline results in a complete failure of the system. A soft real-time deadline means that missing a deadline will not result in sys
216.
by planteen 8y ago
Interesting talk you may be interested in: "Who needs a Real-Time Operating System (Not You!)" (2016) https://kernel-recipes.org/en/2016/talks/who-needs-a-real-ti...
217.
by planteen 8y ago
Yes, this is so true. When someone has a true jitter-sensitive task that needs to run on say microsecond or sub-microsecond accuracy, that is not for the realm of a high-performance CPU with caches even if it is on a RTOS. My first question
218.
by planteen 8y ago
They are used in production all over the place, along with their smaller cousin, the CPLD. If you see a part on a PCB by Xilinx, Altera, Lattice, or some MicroSemi parts, odds are that it's an FPGA. Many FPGAs lose their configuration
219.
by planteen 8y ago
Were you still rendering individual glyphs into a font cache and then rendering those textures into a single text texture? It seems like it would be pretty expensive to always render each individual glyph from the font engine every time ins
220.
by planteen 8y ago
Did Norway actually pass a ban with a date of 2025? Your linked article is from 2016 and says, "Yet there is some denial from other right-wing representatives that the move has been confirmed."
221.
by planteen 8y ago
Found this saying Voyager has a pointing accuracy of 0.1 degrees: https://www.quora.com/How-precise-are-spacecrafts-like-New-H... From the distance of Voyager, I doubt it makes any difference where Earth is for pointing the
222.
by planteen 8y ago
I just ran into this trying to get Wolfram Alpha to expand a polynomial from product to sum form over a Galois field. I got frustrated and wrote my own C++ code myself to get the answer.
223.
by planteen 8y ago
I agree with your comment about back feeding and shorting lines that are supposed to be de-energized, but linemen also sometimes have to work on hot lines. They have all kinds of neat tools and techniques for doing this. Seeing a lineman wi
224.
by planteen 8y ago
They have also conflated silicon and silicone, which is humorous.
225.
by planteen 8y ago
Wow - what a drive! I just roughly clicked your path on Africa in Google Earth. It came up with 12,000 miles. So did the double mileage come from side treks, or is there that many switchbacks and turns to make things double when you are goi
226.
by planteen 8y ago
> Occasionally, you can find great discussions on HN because HN has a large amount of domain experts on various sciencey topics. Apart from that, I don't really think HN is that incredibly fantastic. Exactly. HN has experts, especia
227.
by planteen 8y ago
Yeah, I know. The whole point of my post was in response to abhiminator that I don't think the NRO has the capability to get a live stream of the entire Earth continuously. Are you agreeing with me, or are you saying you think there is
228.
by planteen 8y ago
How are you going to continuously monitor the same area on the Earth without being in GEO? We'd know about a constellation of NRO satellites with continuous coverage of an area of the Earth from the folks at satobs.org.
229.
by planteen 8y ago
Assuming for a moment the NRO has developed suitable optics to image the Earth real-time from geo at say 1 FPS, along with a sensor, and way to pipe everything back to the ground. There are still a couple unavoidable major flaws with such a
230.
by planteen 8y ago
Even removing CJK, there are still more than 65,535 glyphs necessary to represent everything the the SMP and BMP less CJK. If you look in BMP without CJK, surrogates, and private use areas, you are looking at around 27,000 code points. If y
231.
by planteen 8y ago
Yes, but there are glyphs, especially in Indic languages, that have no representation in a presentation form in Unicode. If you are familiar with Arabic, each glyph has forms - isolated, beginning, medial, and final. Your "typical&quo
232.
by planteen 8y ago
That doesn't make sense for some complex (shaped) scripts where you have things like zero width joiners.
233.
by planteen 8y ago
I'm from Colorado and never heard of Haswell. I'm pretty well acquainted with mountain towns, but Haswell is a tiny town in eastern Colorado. Intel chose it because of the easy to pronounce name. https://www.denverpost.
234.
by planteen 8y ago
Yes and read/write barriers are also sometimes necessary, to prevent re-ordering by the compiler and processor.
235.
by planteen 8y ago
Yeah, for sure, especially for more modern CPU features like caches and OOO that are very difficult to emulate in software. But you can't share hardware designs (e.g., FPGA bitstreams) like you can software binaries or software source
236.
by planteen 8y ago
Wow, that is really neat!
237.
by planteen 8y ago
Venezuela has blacklisted people for a long time who belong to any opposition political party from holding jobs (and not just government ones). The brain drain they have experienced is insane. That's not really like Denmark or Sweden a
238.
by planteen 8y ago
I visited Nacimiento del Río Mante on a spring break caving trip to Mexico ten years ago. We were a group of dry cavers headed back from the Aquismon area. We camped by the spring and I fondly remember swimming on top at night and exploring
239.
by planteen 8y ago
> the fact that is was quick to fix does not mean it was easy to find The issue was easy to find. The root cause may not have been. Vehicle stopping distance is a standard metric. Simple black box system level testing at Tesla should hav
240.
by planteen 8y ago
Does anyone know if any of these SDR solutions for hobbyists can get survey grade position solutions?

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