vvanders

92 ms·

901.
by vvanders 8y ago
If someone starts throwing radioactive waste in the garbage I'd sure has hell expect the garbage company to step up and help/protect workers. Don't see how it's any different here.
902.
by vvanders 8y ago
Nope, just two pairs of bell tones on the same frequency. Simple FEC just works pretty well with parity bits, just needs to be supported on all encoder/decoders.
903.
by vvanders 8y ago
Does this do any sort of FEC? One of the things that makes stuff like this tricky(and APRS in general) is that one flipped bit throws off the whole decode. From what I've seen out there would be a 40% improvement[1] in just base APRS i
904.
by vvanders 8y ago
Another vote for fastmail. They even do a pretty decent job being a DNS host as well. Simple setup to add subdomains if you're already using them as your primary/sec NS.
905.
by vvanders 8y ago
From this fine article: > Fly the pirate flag, toss a hammer at Big Brother, think different — just don’t violate Section 3.2 of the Program License Agreement, and communicate to your users words that are on a billboard you drove past on
906.
by vvanders 8y ago
They dug up some of the speechwriter's letters a while back for if things went wrong, some pretty sobering stuff. https://www.space.com/7011-president-nixon-prepared-apollo-d...
907.
by vvanders 8y ago
Or to paraphrase DHH[1], it costs very little to adjust your terms but can have an outsized impact on a portion of your users/developers who are otherwise marginalized. [1] https://twitter.com/dhh/status/10380
908.
by vvanders 8y ago
Regardless of the whole ICBM issue even the suborbital stuff needs a 'license' too. When we went out to the desert to launcher the "bigger" stuff(class H to O) we had a waiver with the FFA each time with a launch ceiling
909.
by vvanders 8y ago
Yup, there's a fair bit of stuff that's intuitive to a seasoned engineer but it's great to have specific terms to talk about and describe it in. The "diffuse" vs "focused" thinking was a great example that
910.
by vvanders 8y ago
If you're looking to expand on this I can highly recommend rands[1] as a great source of a wide range of engineering topics. Good stuff not just for managers but anyone involved in the well-running of a team(which is everyone!). [1] h
911.
by vvanders 8y ago
Yeah, I've got a Benchmade Anthem which is easily one of my favorites(aside from the fact that the incredibly smooth action may qualify it as a gravity knife in some overly zealous jurisdictions), however the CPM-20SV is pretty hard to
912.
by vvanders 8y ago
Really big fan of S30V, it's a pretty decent blend of edge retention without being an absolute pain to resharpen. There's some really interesting specialty metals out there like Boye Dendritic Cobalt[1]. I've got one of their
913.
by vvanders 8y ago
That's pretty cool, I'm assuming it runs from 240 or is it something beefier? Their factory is pretty neat, it's much smaller than I would have expected given their volume. Happy to support a company that does all it's w
914.
by vvanders 8y ago
For the pocket knife aficionados out there, if your ever in Portland higly reccomend taking a tour of Benchmade's factory. They've got a ton of history about the company and you get a chance to view the factory floor(industrial la
915.
by vvanders 8y ago
This so much. Our NP was great, took time to understand the issue each time we visited and generally was on the mark much more often than other MDs I've seen over the years.
916.
by vvanders 8y ago
I've mentioned it before but there's a chance for Rust to get better than most C code with the ability to implicitly mark mut& as restrict. Restrict is one of those very, very sharp tools that's usually only reserved for
917.
by vvanders 8y ago
> Who cares if embedded runtime is 100 Kb or 2000 Kb? We ran Lua on the PSP with 8MB of system memory inside a pre-allocated block of 400kb. Did the whole game logic and state management with no hiccups(and this was before LuaJIT). Not e
918.
by vvanders 8y ago
> Lua is semantically almost identical to modern JavaScript. Having spent a lot of time looking pretty hard at Lua, LuaJIT, and embeddedable variants of JS(duktape and the like) I think that's a bit of a stretch. It's pretty tr
919.
by vvanders 8y ago
Yeah, my inner gearhead was a bit sad when I sold the manual car and we picked up a Tesla. That said 1-pedal driving is pretty great for curvy roads. However we acquired an old '81 ford tractor a few years ago so I can wrench on that a
920.
by vvanders 8y ago
Oh yeah totally, I think it's also a byproduct of how they synthesize. Extra abstractions in software have relatively low cost where they can be really expensive in HW.
921.
by vvanders 8y ago
Nah, it's deeper than that. Assembly is still just a series of commands with desired effects. HDLs are a description of physical hardware(minus IP blocks which are vendor specific). You're describing things down to the actual gate
922.
by vvanders 8y ago
If you want to get pedantic they're also not euler angles, they're 4x4 transformation matrices. You can pick out euler angles just as easily as calculating the quaternion by taking the basis vectors through the matrix and extracti
923.
by vvanders 8y ago
Yeah, it's subtle but let me see if I can tease it out. When you're talking about software you're talking about issuing a series of commands that execute in certain ways that produce a desired result. While you may have threa
924.
by vvanders 8y ago
Nah, FPGAs are programmable hardware, it's a subtle but important difference.
925.
by vvanders 8y ago
> The math will work out. When you're dealing with GPUs you're never dealing with just the math. Various vendors make shortcuts in the name of performance so there's a good chance your raycast code doesn't match 100%.
926.
by vvanders 8y ago
That's assuming you have raycasting rendering(most game engines don't) and/or hoping that the way you draw your ray cast scene matches up pixel perfect with the GPU(it won't). Generally rendering Geo + Fill is cheap, it&
927.
by vvanders 8y ago
Each device has a pretty unique thermal profile(tablets dissipate heat better than small phones, more metal = better profile, etc) so these things tend to get tuned on a per-device basis. We had one device I was helping bring up where you c
928.
by vvanders 8y ago
So PowerVR is the only GPU design I don't have direct experience with in the mobile space, never worked with an SoC that fielded it. However given that Apple isn't the only one who licenses their designs I'd put a large sum o
929.
by vvanders 8y ago
As someone who spent a ton of time in the smartphone GPU/CPU space from '09-'13 we saw every single vendor do this. They'll happily ignore thermals, run custom shader microcode and any other tricks that'll boost the
930.
by vvanders 8y ago
That's pretty spectacular, I'd love to read some more sources on it. Makes me glad Tesla did their stuff the way they did. You can reboot the cenelter console and/or days while driving and not much happens other than A/C

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