mhandley

70 ms·

751.
by mhandley 9y ago
For networking, two classics are: The Design Philosophy of the DARPA Internet Protocols http://tdc.iorc.depaul.edu/media/internet-design-philosophy.... End-to-end arguments in system design http://web.mit.ed
752.
by mhandley 9y ago
Use the hamburger menu, select "Customize", and it's at the bottom of the screen.
753.
by mhandley 9y ago
Martin Strohmeier's PhD thesis "Security in Next Generation Air Traffic Communication Networks" is pretty sobering reading and goes into a lot of detail. http://www.bcs.org/upload/pdf/security-air-tr
754.
by mhandley 9y ago
I'm not sure about mixing prefix (for functions), infix (for operators) and postfix (for pipelines) notation in the same languaqe. Does having all three in the same language actually help readability? If you really want to read thing
755.
Rocketing ahead with SpaceX(medium.com)
1 points by mhandley 9y ago|0 comments
756.
by mhandley 9y ago
I'm a CS professor, so I've a fair bit of experience publishing research. A few things to think about: It's easy to publish research, but the first lesson is that the places it's easy to publish in, no-one will read you
757.
by mhandley 9y ago
If you wreck your brand new Model 3 next week, how long to get a replacement? The waiting list is quite long.
758.
by mhandley 9y ago
Even if we still need car parks, cars parking themselves can park really close together (no need to open doors), and block each other in (they'll move autonomously to let another car out). If you go multi-story, you could have some fl
759.
by mhandley 9y ago
I agree - most of the time, the current fork() implementation is what you want, so it's the right choice. The conventional wisdom is that you shouldn't spawn threads and then fork(), and so long as you stick to this, you're
760.
by mhandley 9y ago
Thinking about it some more, one problem would be what to do with threads that have just called a system call and are waiting for a response. To have both parent and child process system calls complete without errors would require cloning
761.
by mhandley 9y ago
Interesting discussion. If these were user-space threads, like FreeBSD ~20 years ago, there'd be no problem. When fork() is called, the whole user-space threads package would be forked, along with all the threads. So the obvious ques
762.
by mhandley 9y ago
That might be true if we had secure DNS deployed. But we don't, so using this attack, DNS cache poisoning is pretty easy. And if you can subvert DNS, you can redirect HTTPS traffic to a typosquatted version of a website. Unless you
763.
by mhandley 9y ago
When we designed DCCP, I did a formal model using LTSA to prove liveness and safety properties. Mostly I did it for fun (I got landed with teaching concurrency, and the previous professor had used this tool). As formal models go, LTSA is
764.
The V-22 Osprey-Inspired Army Aircraft Is Ready for Takeoff(wired.com)
13 points by mhandley 9y ago|4 comments
765.
by mhandley 9y ago
Just publish them all. Give the country a couple of years warning that all social security numbers will become a matter of public record, and then publish them all. Any organization that still treats them as a secret could then be sued in
766.
by mhandley 9y ago
I'm a CS professor, so take everything I say as biased or whatever. We all know and expect that most PhD students will not end up in academia. The best PhD students often aren't those who want to be academics, but ones who are ju
767.
by mhandley 9y ago
The original title was the one from the article: "Hubble discovers a unique type of object in the Solar System"
768.
by mhandley 9y ago
Yes, but they're also sublimating ice, so they have a coma and tail. Thus they're also classified as a comet. As the article goes on to say, they couldn't have lasted all that long like this, so one theory is they used to be
769.
by mhandley 9y ago
Seems like a reasonable punishment for such criminal negligence for a corporation would be revocation of the patents protecting their monopoly. A corporation does not deserve a government-sanctioned monopoly if it is negligent in how it us
770.
by mhandley 9y ago
Interesting idea, but if I understood correctly, it doesn't seem like this could repair existing crumbling infrastructure. Rather it might be useful in preventing new infrastructure from crumbling.
771.
by mhandley 9y ago
As a professor, I'm increasingly trying to avoid using a computer to lecture. I'm making a lot more use of a whiteboard pen to explain things, backed up by powerpoint slides, video and audio only when I think it adds. The nice t
772.
by mhandley 9y ago
For wind at least, it turns out you want to put the batteries as close to the wind turbines as possible, rather than close to the consumer. The reason is that this evens out the power delivery over the grid. If you put the batteries clos
773.
Norway to ban the use of oil for heating buildings by 2020(independent.co.uk)
2 points by mhandley 9y ago|0 comments
774.
by mhandley 9y ago
Our drier tumbles the dry clothes for a second or two every five minutes or so for hours after the dry cycle has finished. This goes a long way to avoiding the clothes getting too wrinkled waiting for us to unload it.
775.
by mhandley 9y ago
Why would you want your expensive cargo on a rocket's test flight - much safer to fly on a nice reliable "launch proven" rocket. We've not quite reached this point yet, but I'm sure it's coming.
776.
by mhandley 9y ago
Of course, back in the 1980s all UK domain names were the other way round. UCL was uk.ac.ucl.cs if you used X25 and cs.ucl.ac.uk if you used TCP/IP. UCL was the gateway between the two worlds, and used magic heuristics to figure out
777.
by mhandley 9y ago
My UK postal code only has two numeric digits, whereas I seem to recall the US gas pumps require five digits. Just means you can't pay at the pump.
778.
by mhandley 10y ago
Shouldn't be too hard, at least in principle, to enable a low-pass digital filter in the Android audio subsystem. There must already be one there for anti-aliasing when apps demand 16000 or 8000 samples/second capture. Just need t
779.
by mhandley 10y ago
I agree. This leads to an interesting question: can the estate of a deceased person sell or license their voice rights for new future performances? I suspect the law has some catching up to do.
780.
by mhandley 10y ago
However, if you keep flying 1G after exiting that parabolic barrel roll, you're going to make a hole in the ground. The vomit comet usually does a 3G pull up afterwards. You've got to exceed 1G, either to enter the parabolic arc

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