cpgxiii

23 ms·

241.
by cpgxiii 5y ago
If all US states had free, easy-to-use programs to ensure that all residents had useful government-provided ID, or a common, free, federally-provided ID, this wouldn't be an issue. However, that is not the case, and so long as the requ
242.
by cpgxiii 6y ago
There are practical mitigations for the problem, especially if you want to filter away points from these surfaces (and are OK with dropout regions in the depth image). Some of these sensors produce useful per-pixel confidence values which d
243.
by cpgxiii 6y ago
You can absolutely make ToF sensors work outdoors in direct sunlight, but you need to operate at different frequencies that require more expensive emitters and detectors to avoid being saturated by light from the sun.
244.
by cpgxiii 6y ago
It should be clear that while Eurocopter and Aerospatiale before them liked showing off specific modified helicopters in the Himalayas (up to and including landing on Everest), none of them were capable of carrying a useful payload to that
245.
by cpgxiii 6y ago
The other poster mentions analog techniques used in contrast-tracking TV-guided munitions like the Walleye, but digital "CV-like" image/contour matching methods were used on the original Tomahawk cruise missile and the Pershi
246.
by cpgxiii 6y ago
>clean up the ARM/Microsoft dumpster fire that virtualizes a guest The VPU does not operate as a hypervisor for the OS running on the ARM cores. Its role is equivalent to a hybrid of platform management (like Intel ME/AMD PSP&#
247.
by cpgxiii 6y ago
> Why would that be? Who would want that and has the ability to exert such force? Essentially every country ever has desired to have an "unbreakable" cipher for its own use and breakable ciphers for everyone else. Only in the m
248.
by cpgxiii 6y ago
It's not just "think" - some cars specifically beep in different ways depending on lock status. Recent-ish Fords beep once when locked, and beep twice quickly if a door is ajar and can't lock. It also blinks the lights
249.
by cpgxiii 6y ago
Some very rough numbers, if you want plans valid until you see the results and travel at a good speed: - You want a travel speed of 0.5 m/s - Worst-case round trip time from command to result is 40 minutes, or 2400 seconds - Max distan
250.
by cpgxiii 6y ago
The whole point of implementing A* on Curiosity was to give it some navigation autonomy. The time delay in getting sensor data back to earth, coming up with a motion plan, then sending the plan back to be executed imposes tight limits on ho
251.
by cpgxiii 6y ago
Testing is done on earth in lab conditions, and some testing has been done in space. We've had good models of radiation energy and type in space for a while, so you can reproduce type and intensity of radiation on earth to test how the
252.
by cpgxiii 6y ago
What they were trying to say is that physical backup controls are often incomplete and inconvenient, just like how you can control a TV using the buttons on it but doing so is far less effective than using the remote. The idea is that mak
253.
by cpgxiii 6y ago
You're right, the RAD5500 and family are available. I should have said the whole BAE RAD family. The reality hasn't changed much, though, there's really only one game in town for high rad-hard performance, and it's still
254.
by cpgxiii 6y ago
The RAD750 (edit - the whole RAD family, there are newer models available) remains the standard because it's the highest performance rad-hard design available, period. If you're putting an expensive satellite in orbit for 5,10 yea
255.
by cpgxiii 6y ago
The point is that if you're looking for distinctly different approaches than the currently dominant x86_64, aarch64 implementations are not where to look.
256.
by cpgxiii 6y ago
> So you need to be very efficient with the installed base of software That's only somewhat true. Until the modern era of cloud hyperscalers, fairly weird architectures with poor compatibility were quite successful, especially in HP
257.
by cpgxiii 6y ago
> It was one ISA, and a terrible one at that Except, you know, the whole point of VLIW designs was that by offloading complexity to the compiler and runtime you'd be less limited by hardware design decisions and be able to improve w
258.
by cpgxiii 6y ago
No. Back to the very first graphical workstations, people have people putting dedicated processors in computers for graphics (ex Apollo Computer using the TMS320 DSP for graphics math). The entire reason for legacy decisions in OpenGL is fr
259.
by cpgxiii 6y ago
Itanium was not one attempt, it was several generations of trying to make the concept work. And it didn't. > And for 20 years since it has been sufficient to invoke the name to scare away any attempt of actually trying something new
260.
by cpgxiii 6y ago
The reality is that the embarrassingly parallel nature of graphics has been long understood, as well as the advantages of having graphics be handled by a different, dedicated processor (see Intel's i860 in the early 1990s). Unless in s
261.
by cpgxiii 6y ago
It's not at all clear that better ways exist for general purpose code. A lot of time and effort has been spent by major players, with very little to success to show for it. Intel, quite infamously, tried to make "something better&
262.
by cpgxiii 6y ago
The simple answer is you need at least three to identify and recover from a single failure, five for two simultaneous failures, and so on (generally assuming failures can be recovered from automatically by rebooting the failed controller).
263.
by cpgxiii 6y ago
Background in electrical engineering, presently in robotics research, and a strong interest in avionics. The concerns that commercial aircraft face are shared with basically every other self-propelled electromechanical system (planes, cars,
264.
by cpgxiii 6y ago
Mobile phones don't. There are practical and political reasons for not allowing phone use, but meaningful risk to the safety of flight is not one of them. Instruments are fine, what could suffer problems are RF receivers (radio, radar,
265.
by cpgxiii 6y ago
Realistically, limited. Passenger aircraft are routinely struck by lightning, which isn't entirely the same but is relatively similar. Given warning, I don't see airlines taking the risk, but that's driven by perceived liabil
266.
by cpgxiii 6y ago
You could effectively build your own fiber optic I/O hub via fiber optic Thunderbolt cable to a Thunderbolt dock. Alternatively, build one via a combination of (1) fiber ethernet, (2) fiber HDMI/DP extender(s), and (3) fiber USB e
267.
by cpgxiii 6y ago
"Base" clock dropped, but boost clocks remained fairly high. In practice performance gains were quite good (except, notably, for that time when Apple used old power control firmware and had 6C/12T processors underperform thei
268.
by cpgxiii 6y ago
Benchmarking multicore Performance+Efficiency (Apple) versus SMT (AMD) versus SMT+Wide vectors (Intel) is never going to provide perfect apples-to-apples comparisons. There's an entirely reasonable argument that single-thread performan
269.
by cpgxiii 6y ago
Of course, the scheduler can easily be told to run both benchmark threads on the two hyperthreads of a given core. The argument to be made is that because of the resources dedicated to SMT, single thread on AMD/Intel versus single thre
270.
by cpgxiii 6y ago
We have seen massive improvements in power envelope in CPUs in fairly recent generations, to say nothing of the power improvements seen in some generation->generation GPU improvements. For example, with an improvement to the 14nm proce

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