elteto

57 ms·

841.
by elteto 6y ago
I think you need to develop this point a bit more: at face value it looks (to me) like you are saying: "The borrow checker is more complex than simple malloc/free calls therefore it is less safe." Which is clearly wrong.
842.
by elteto 6y ago
That quote even has its own wiki page: https://en.m.wikipedia.org/wiki/I_know_it_when_I_see_it
843.
by elteto 6y ago
ATCs have a reputation for never losing their cool and that really shines through here: “Tower, there’s a guy in a jetpack flying outside.” “Copy. To your left or your right?”
844.
by elteto 6y ago
If you want to be able to recover _that_ key at some point.
845.
by elteto 6y ago
We improved this by always carrying color pens and a minimal playdoh set (couple of colors and tools). First they paint, then they do playdoh, and then, if the meal isn’t over they watch cartoons. We have almost completely eliminated device
846.
by elteto 6y ago
By looking at it, literally.
847.
by elteto 6y ago
Fantastic! Are you proud that you can call yourself an HTML programmer now?
848.
by elteto 6y ago
Hacker: "Silicon Valley’s most successful people marketed themselves as hackers until their parents found out what it was." and "You startup is not a startup, it’s just a bad project."
849.
by elteto 6y ago
Great article. I particularly enjoyed the “beyond the basics” use of gdb. I know the basics just like anyone else whose done some light debugging with gdb but it is hard to find information that goes beyond that. There’s a gazillion of half
850.
by elteto 6y ago
But when were they dishonored or disrespected?
851.
by elteto 6y ago
Shame culture is very poisonous, it turns people with good intentions into the exact opposite.
852.
by elteto 6y ago
See my other reply on this same thread. I would never work for Philip Morris in the same way I would never work for FB. This mentality is extremely dangerous because it cuts both ways: imagine companies discriminating against employees beca
853.
by elteto 6y ago
No, not at all. Don’t get me wrong, I myself would not work at Facebook because of my _own_ morals. But I draw a line between what I believe in and how I project those beliefs onto others. If there’s a thing I’ve learned in life is that rea
854.
by elteto 6y ago
Passing judgment on thousands of employees like this is really no better either, you are just imposing your own morals on them.
855.
by elteto 6y ago
It is never persisted outside of RAM. The flight computers are never powered off during a mission. You rely on two flight computers to always be functioning, that’s why the system is one-fault redundant. You can think as each string being “
856.
by elteto 6y ago
If a flight string desyncs (i.e. it has state at the end of a cycle different from its two siblings) then it is automatically rebooted. Then state is automatically resynced from any other sibling after boot. There is no converging between t
857.
by elteto 6y ago
On the ground side, yes, there are many databases for different purposes. But not on the actual flight software.
858.
by elteto 6y ago
Can't say exactly re statelessness, but I would not be surprised if you could power-cycle all displays if needed in the middle of a mission. As far as independent, completely independent from each other.
859.
by elteto 6y ago
In this case, C++ code is written in a different style than regular applications: exceptions are not allowed, allocations are not allowed past a certain point in program initialization, raw pointers are frowned upon, etc. This is common in
860.
by elteto 6y ago
A slight inaccuracy: the flight strings are not x86, but ARM, running on a custom board. Also, only the actual graphical display application uses Chromium/JS. The rest of the system is all C++. The display code has 100% test coverage,
861.
I don't understand Python's Asyncio (2016)(lucumr.pocoo.org)
2 points by elteto 6y ago|0 comments
862.
David Beazley – Python Concurrency from the Ground Up: Live – PyCon 2015(youtube.com)
2 points by elteto 6y ago|0 comments
863.
by elteto 6y ago
Thanks, that was a really good mission rundown. On a separate note, it's amazing how Tim has built such a brand in such a short time, I remember when he started out a couple of years ago.
864.
by elteto 6y ago
How long will the approach to the ISS take? Previous unmanned Dragon missions take ~1 day to approach and dock but I can't imagine they will subject the astronauts to the same.
865.
by elteto 6y ago
This is the KLEE project mentioned in "The PhD Grind" book [0], which was also on HN recently. I recommend reading it for a behind-the-scenes look at the effort required to complete a PhD in CS. [0] http://www.pgbovine.
866.
by elteto 6y ago
Might not be necessary as the intended range was a short 500 yards (~455 meters).
867.
by elteto 6y ago
I've worked extensively with mechanical engineers on large scale projects. This level of creativity is very much alive today. We just don't get exposed to it as much here on HN.
868.
by elteto 6y ago
I see. My experience was with medium test stands (couple of thousands of channels) in a more industrial setting, we didn’t really need high-accuracy or specialized ducers (there were maybe one or two of those and we usually wrote custom sof
869.
by elteto 6y ago
Not a mathematician so correct away: I think the initial confusion stemmed from not pinning down the domain of x and y. When he says “I don’t see the complex points” in the xy graph that is because they aren’t there: the xy graph is in R^2
870.
by elteto 6y ago
Interesting. Are you talking about the cRIO line or the PXI one? My experience with the PXI line was that it was absolutely top notch. I’ve seen some really cool things done with that. Most electrical folks I’ve worked with loved the hardwa

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