welterde

43 ms·

451.
by welterde 12y ago
It's way cheaper to build ground-based telescopes than it is to build space-based ones (and you can easily upgrade it too). Thanks to advances in adaptive optics you can now get most of the properties of space-based telescopes with gro
452.
by welterde 12y ago
ESO offers guided tours of their Paranal and La Silla observatories. http://www.eso.org/public/about-eso/visitors/
453.
by welterde 12y ago
> In creating the circumstances for the monkey to hit the shutter release button, the photographer did in fact make the most substantial contributions to the final image. That argument works just as well for camera rental companies. Beca
454.
by welterde 12y ago
Worse actually, since at least for Xilinx and Altera the development environment is available for linux.
455.
by welterde 12y ago
Electricity exports from Germany are on an all-time high though.
456.
by welterde 12y ago
> Lower frequency (50/60 Hz) AC is the only really useful choice for transmission on low cost long runs (think 100 km and more). To push high voltage DC on long runs generally means special cables and possibly super conductors. Push
457.
by welterde 12y ago
Are the individual instruments cooled to that temperature though? Because if they are not, then the difference doesn't matter. Had a look at the SPIRE manual [0][1] and it seems that Herschel does include an Helium cooler to cool SPIRE
458.
by welterde 12y ago
I wonder how much more expensive Herschel would have been, if ESA had gone with an closed-cycle cooler instead of using a limited liquid Helium supply directly.
459.
by welterde 12y ago
At my university we can just keep the book for the whole semester.. so the students here rarely buy books anyway (except when the library is selling it's old books.. lots of bargains to be had :).
460.
by welterde 12y ago
Scheduling the meeting directly before lunch should take care of ending it on time.
461.
by welterde 12y ago
> Mulitple monitor features are not great across a wide range of open source OSs What exactly do you mean by that? I never had any issues with multiple monitor setups (or noticed any lack of features..)
462.
by welterde 12y ago
> And I also used vi/emacs, but only briefly. I use a German layout with my keyboard, but everything is designed with the US layout in mind. Therefore, many things don't work, and I wasn't able to learn the US layout yet.
463.
by welterde 12y ago
Some groups however do share their code [1] (I am not really aware of similar sites for fields other than astrophysics, although there is plenty of code out there). [1] http://asterisk.apod.com/wp/?page_id=12
464.
by welterde 13y ago
> solves some of the issues openrc and systemd solve, but without systemd's baggage. I thought OpenRC was that init system? Or what systemd baggage comes with it?
465.
by welterde 13y ago
Wouldn't you at least try though to schedule meetings at times, where people are usually at work anyway?
466.
by welterde 13y ago
> There are limits to the angular separation a telescope can detect. Even the very largest telescopes on Earth (or more often: arrays of several telescopes, effectively creating multi-thousand-kilometer baselines) can resolve the disks o
467.
by welterde 13y ago
> ii/ have the computing power to actually train with it. That's hardly an issue.. You just have to know one person that works for a university and you are pretty much all set.
468.
by welterde 13y ago
I only tried Arch [1] on a raspberry pi so far, but there it worked just fine. [1] http://archlinuxarm.org/platforms/armv6/raspberry-pi
469.
by welterde 13y ago
> Http redirects to https, which is awesome. Huh..? Here it's doing the opposite (but will check again once I get home if it's just at work..).. Or weren't you talking about the eso.org website?
470.
by welterde 13y ago
Why irssi+znc? Why not just run irssi on the box you run znc on (inside screen or tmux)?
471.
by welterde 13y ago
> It seems a bit disingenuous to advertise "RAID 1" on the main page, when it's only software RAID. Is hardware RAID for RAID 1 really worth it? Because in my experience the performance advantage is not really there.
472.
by welterde 13y ago
The time to read the complete tape might be longer than the time to read a blu-ray, but in terms of data rates modern tapes are still about a factor of 3 ahead of optical disks (160MB/s for Ultrium 6 vs 54MB/s for Blu-ray 12x).
473.
by welterde 13y ago
What we do in our group is to put all plots and images into a wiki and at the meetings each person in turn would then just tell the person behind the laptop what page to navigate to, etc.
474.
by welterde 13y ago
Interesting.. That's indeed rather limiting. That being said, I don't think that's true in Germany (where the balance in your bank account is pretty much the only limiting factor for getting some cables into the ground) and s
475.
by welterde 13y ago
> you find out that someone forgot to renew your domain the hard way Is that really still a thing? Keeping the bank account used for direct debit for the domains above zero should not be that hard I would assume.
476.
by welterde 13y ago
> In the case of Mt. Gox, or any other Bitcoin exchange, that credit is secured by nothing and insured by noöne. I believe that's not quite true. IIRC there is a european bitcoin exchange, where at least the euro balance is insured
477.
by welterde 13y ago
> Might the current IPv6 numbers just reflect that a lot of people aren't peering or anything? Peering doesn't require you to announce more routes per se, although some networks do it for traffic engineering purposes. From an B
478.
by welterde 13y ago
> Is that even remotely close to being true in practise? Would we expect to see it be smaller than IPv4? Given the quadrupling of address sizes, wouldn't that mean there'd need to be 1/4th the number of routes? And peering
479.
by welterde 13y ago
> No, and this is a good thing, only IPv6 devices which have their own IPv4 address/network can issue IPv6 addresses on that network. So you will still need tunneling to make it work. As you will still have to run CGN to get all you
480.
by welterde 13y ago
> No, I'm not talking about tunneling, I'm saying natively route at the v4 level, and the header will be less, because 128bit addresses will only be used when required. There are multiple issues with this. The first and probabl

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