robryk

32 ms·

421.
by robryk 12y ago
This is not a new idea: the British[1] tried using balloons with trailing wires during World War II (in the hope they'll short power lines). As far as I can recall (I can't find a source right now) the Japanese put lots of copper
422.
by robryk 12y ago
I take issue with the statement that depriving a plant of line power and having a UPS failure will "cause something like Fukushima". An important factor in the Fukushima accident was the infeasibility of quickly (within a day or s
423.
by robryk 12y ago
In order to get one virtual slice of device per container I just need the device's driver to support that or I need to have a layer on top of the driver that partitions the device. As the different cgroups have the same kernel and thus
424.
by robryk 12y ago
How would you use hardware virtualization tech (other than a normal MMU) to separate processes that run on the same kernel from each other?
425.
by robryk 12y ago
I've thought that guard pages referred to the practice of having a page or a couple allocated before and after an accessible region and set to PROT_NONE (any access causes a trap) to prevent any new allocation from making those pages a
426.
by robryk 12y ago
According to the article you are quoting the engine didn't explode; it's just failed. I'd be very impressed if a rocket survived an explosion of one of its engines (they are much closer together than jet engines on a passenge
427.
by robryk 12y ago
According to wikipedia, it was STS-3 that had (autoopilot-induced) oscillations during landing. The description on Wikipedia seems to imply that they were expected (the autopilot was being tested) and that the dangerous condition was due to
428.
by robryk 12y ago
What is meant by checking that the project is "secure" is checking dependencies against known security issues. While this is useful, this is completely different from what is advertised (I've expected some sort of a heuristic
429.
by robryk 12y ago
Thanks, I've missed the SCC one. I will try to understand it. (The reason I've asked about DFS in particular is that it is inherently sequential. This SCC algorithm probably encapsulates some kind of DFS.)
430.
by robryk 12y ago
How would you represent a graph and implement DFS in K?
431.
by robryk 12y ago
But, if you have an upper bound on the time of the operation, you can wait until the bound elapses, so that your operation always takes that long.
432.
by robryk 12y ago
Isn't misuse-resistance a property of the interface alone and doesn't it consequently transfer to libsodium? No argument on the other counts.
433.
by robryk 12y ago
I think that it'd be feasible to "teach" the firmware assignment of pins to rows/columns by pressing the keys in sequence upon first startup. You could probably even get away with pressing every key in any order in the &
434.
by robryk 12y ago
I'd guess optical: the gun-barrel thingy emits some light pattern (or just flashes) and the timing is used to determine whose is it similarly to how bump.io used to work.
435.
by robryk 12y ago
Some built such a foot pedal: https://github.com/alevchuk/vim-clutch
436.
by robryk 12y ago
Are there any inertial navigation systems that work at all in ground vehicles? I'd expect otherwise due to e.g. vibration.
437.
by robryk 12y ago
Minor addition: engines need compressed air to start and APU provides that, too (used for engine starting, cabin pressurization and some anti-icing systems).
438.
by robryk 12y ago
> Of course the externalities of surplus lawyers are much worse for society than the externalities of surplus physicians. Would you care to explain why? My guess is that you mean that a surplus of lawyers can cause additional demand for
439.
by robryk 12y ago
RORSAT[1] were Soviet satellites that carried radar and were powered by small nuclear reactors. The reactors provided between 2 and 6 kW of power. [1] https://en.wikipedia.org/wiki/RORSAT
440.
by robryk 12y ago
I think that many people here bristle (me included) at the notion of treating electricity as nonfungible. I think there are at least two reasons for that: * There seems to be a slippery slope once power companies start to care what do y
441.
by robryk 12y ago
> sshd will fork() and chroot() into /var/empty. After the fork(), you can't use the entropy you have because it's shared with the parent (i.e., it's not "entropic"). What's wrong with generating s
442.
by robryk 12y ago
> changed function definitions in subtle ways This is surprising for me. Can you provide an example?
443.
by robryk 12y ago
You can detect speed,ount and types ofcas with a pair of inductive loops (car length determines the type pretty well). I'd guess that putting such a pair some distance before the intersection would be a lot simpler (cars would obscure
444.
by robryk 12y ago
There might actually be a performance cost due to increased code size (by way of increased amount of icache misses).
445.
by robryk 12y ago
Antenna gain impacts the amplification of the sent signal, as well as the amplification of the received signal.
446.
by robryk 12y ago
It seems to me that the point of appcache is to group the files that should be persisted into groups (not necessarily disjoint) that belong to different apps. This way, if the persisted files take up a lot of space, one can attribute that s
447.
by robryk 12y ago
Is the RTT really dominated by lightspeed delays and not processing in the phone?
448.
by robryk 12y ago
As far as I remember, you are wrong: a loop with side effects (either external IO or volatile reads/writes) is allowed to never terminate.
449.
by robryk 12y ago
LLVM does something similar if you pass -fsanitize=undefined: it tries to insert code that will crash the program when it invokes something that has undefined behaviour. It cannot emit a compiler error, because it's perfectly fine to h
450.
by robryk 12y ago
Maybe "important" fits the constraints?

More ›