planteen

54 ms·

271.
by planteen 8y ago
Yes and that is the better way to do it. Compiling an enormous C file is slow. Many compilers have low limits (around 50 MB or so) but gcc has a huge limit. But even on gcc, a large file slows down the build process significantly.
272.
by planteen 8y ago
My guess is OP's share was diluted to the point it was basically worthless. As in, they went from owning 1% to 0.01% or similar.
273.
by planteen 8y ago
Certainly part of it. I think the JWST is supposed to be a collaboration between NASA, CSA, and ESA. The European contribution is the launch vehicle.
274.
by planteen 8y ago
You could argue JWST will be doing self assembly on orbit with the deployment of the primary mirror. There is some very fine wave front adjustment that needs to happen there. They are putting a 6.5 meter mirror on orbit! That alone puts it
275.
by planteen 8y ago
I was a HOPE recipient at Georgia Tech. I took a random signals class from Mark Clements which had its basis in probability and statistics. He brought up the regressive nature of the lottery and the ethics of it: the expected value of the
276.
by planteen 8y ago
I think it happens fairly often. In the more mathematical realm in information theory, turbo codes came out of nowhere by people who were not experts in the field of FEC. Their efficiency far surpassed other methods of the time, to the poin
277.
by planteen 8y ago
Reuters is covering it too. It's on the front page of Yahoo Finance. "The price of Musk cutting off analysts? For Tesla, it's $2 billion" https://finance.yahoo.com/news/price-cutting-off-analysts-te.
278.
by planteen 9y ago
How well does the Sony A7M3 work at night in video mode from inside a moving car with oncoming traffic headlights in the FOV? That is really the case that needs to be supported. My guess is that LIDAR is superior in that scenario, but I&#x2
279.
by planteen 9y ago
If I am using a single HDD, can ZFS still add parity data? That's neat if it can. I assumed parity with ZFS was for something like RAID6 where there are multiple HDDs in a set. Do any other file systems other than ZFS support adding pa
280.
by planteen 9y ago
I've used XZ to compress tarballs of backup. XZ was useful so I could store more backups on an external hard drive. I have seen bit rot on some of these files (stored on a magnetic HDD), in the sense that the md5sum of the .tar.xz arch
281.
by planteen 9y ago
How do you fit the BLM in the mix then? Tons of grazing happens on BLM land. Quarries, mines, and oil/gas wells happen on both USFS and BLM land. Recreation happens on both. It seems like one agency administrating public lands makes mo
282.
by planteen 9y ago
Sure, it would seem more obvious, but that's the federal government. Why are the NPS and BLM under the DOI but USFS is under the USDA? Tons of USFS land borders NPS and BLM so it seems like one department in charge would make sense...
283.
by planteen 9y ago
Yes, drought is for a region based on its averages. One problem is droughts and wet spells can happen on periods with length of a decade.
284.
by planteen 9y ago
Antennas on towers, like for cell networks. Starlink doesn't work for mobile users, either.
285.
by planteen 9y ago
I'm not talking about competing with mobile networks. I'm talking about fixed wireless service.
286.
by planteen 9y ago
Iridium's problem was they didn't know who they were marketing service to. It seemed like a good idea before cell service was common and before roaming agreements. Those things were in place before the constellation was operationa
287.
by planteen 9y ago
Maybe... but I see the system being bandwidth constrained. If each spacecraft is 20 Gbps and how many will be visible over the USA at a time? 50 or so? So 1 Tbps for the entire country? That's less than the capacity of a single neighbo
288.
by planteen 9y ago
Keep in mind that puffins and scorpions are fluorescing. So the excitation is UV light, but the emission is in the visible spectrum. So tetrachromacity doesn't necessarily come into play. The ability to resolve the emission colors thro
289.
by planteen 9y ago
How are you going to power said satellite? Those massive solar arrays are going to reflect emag across the spectrum (radar returns and solar returns).
290.
by planteen 9y ago
I've seen WorldView-3 in person before it launched. The optics are enormous relative to the size of the also large bus. You couldn't hide that. Plus the changing attitude would point to an Earth observing mission.
291.
by planteen 9y ago
Why would there be nearly perfect acoustic isolation? Spacecraft have jitter from spinning reaction wheels or CMGs.
292.
by planteen 9y ago
Yeah its definitely nice to avoid an annoying "binary" to source step and then have to waste a bunch of cycles to parse/compile said source. I do embedded work and run into this all the time with C and C++. Its toolchain depe
293.
by planteen 9y ago
> If electricity takes all paths, then whats the point of the mantra? It includes the highest and least resistance, and everything in between. The mantra is almost deliberately meant to mislead? Maybe mantra wasn't the right word, W
294.
by planteen 9y ago
Exactly. And also the mantra "electricity takes the path of least resistance". While that is true, some people seem to interpret it as "electricity only takes the path of least resistance" which is very wrong. Electricit
295.
by planteen 9y ago
No way. If that were the case, people would be dying all the time when trying to jump cars. You would need to wear lineman gloves to do it safely and working on cars in general would be quite hazardous. I've touched both car battery te
296.
by planteen 9y ago
That's neat. I had heard of the PINE64 board but never the SOPINE. Curious, have you implemented any projects on this? Seems like it might be neat for testing a small distributed system.
297.
by planteen 9y ago
Odds are the camera flash discharge caused electromagnetic interference (EMI) that disturbed your electronics rather than the visible light and UV radiation from the flash itself. Wafers are photo sensitive, but light is blocked by the pack
298.
by planteen 9y ago
I kind of doubt this story. What kind of radiation would you have from Chernobyl? My understanding is that bit flips (SEEs) are typically caused by energetic particles like cosmic rays. To simulate upset damage on Earth, you typically need
299.
by planteen 9y ago
The lights are over 300,000 ft so well above the altitude of 70,000 ft.
300.
by planteen 9y ago
Trying to make it in the space industry of all places with the government as an adversary is suicidal. In many commercial space ventures, the government (through its many arms) is often one of your largest customers.

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