Y
HN Search
Hacker News Search
new
|
comments
|
top
|
jobs
xioxox
searching PlanetScale…
1.
▲
2.
▲
3.
▲
4.
▲
5.
▲
6.
▲
29 ms
·
361.
▲
by
xioxox
9y ago
Because it's extremely easy to damage other people with lasers. Stray reflections can easily blind. It's one thing if you're in an enclosed space only able to hurt yourself, but most of the real world is not like that.
362.
▲
by
xioxox
9y ago
I didn't know they added that. The intrinsic could be useful to parallelize the computation using SSE/AVX.
363.
▲
by
xioxox
9y ago
In C/C++ it would be much easier to call the intrinsic functions which represent the fma instructions. The compiler would then be able to inline and optimize the whole.
364.
▲
by
xioxox
9y ago
I didn't get one for a first-author Science paper, but got them for co-authored Nature papers.
365.
▲
by
xioxox
9y ago
I've used SIP, which wasn't too painful. The code you write to do the interfacing looks quite like the C++ definitions. I mostly used it as was an application which used PyQt. It probably is harder to use as it's not the most
366.
▲
by
xioxox
9y ago
I was aware of the promotion feature. I was creating new clones/snapshots in a chain hierarchy in zfs, copying old backup sets progressively onto the back of the chain, but keeping the head as the current copy. This was a breeze in btr
367.
▲
by
xioxox
9y ago
BTRFS has much more flexible snapshots and clones than ZFS. You can create rewritable snapshots and create new snapshots based on those. In addition you can create COW copies of files with "cp --reflink" which ZFS doesn't sup
368.
▲
by
xioxox
9y ago
There is a claimed "Norwegian Gender Paradox", where in countries where there is freer choice of career and equal-opportunity for women, then jobs are increasingly split along traditional gender lines.
369.
▲
by
xioxox
9y ago
However German banks like to charge you if you use the wrong machine. There are various different networks and you have to use the right one to make sure you aren't charged. This is quite different from the UK where most machines are f
370.
▲
by
xioxox
9y ago
It depends on the project. Most of the people using my GUI plotting software Veusz [1] are not devs. Therefore I get a lot of questions on how to use it, bug reports, complaints and feature suggestions, but little in the way of code. [1] h
371.
▲
by
xioxox
9y ago
There is the frame of the cosmic microwave background, which allows you to measure you speed with respect to the average expansion of the universe. It's not special in terms of physics, but it is a reference.
372.
▲
by
xioxox
9y ago
The Amstrad PCW was also a Z80 system with 256 or 512 KB RAM accesible using bank switching. Normally it acted as a RAM disk.
373.
▲
Veusz, a GUI scientific plotting package
(veusz.github.io)
2 points
by
xioxox
9y ago
|
0 comments
374.
▲
by
xioxox
9y ago
Veusz can be used from the Python repl. Just see some examples here: https://github.com/veusz/veusz/wiki/EmbeddingPython (I am the Veusz author - I'm glad you like the look of the output)
375.
▲
by
xioxox
9y ago
If you're using veusz ( https://veusz.github.io/ ) then you can interactively modify your plot, changing the appearance and investigating relationships without writing or rerunning code. If your code takes a long time to
376.
▲
by
xioxox
9y ago
Not looked in this much, but here's an old paper from a simple search: http://onlinelibrary.wiley.com/doi/10.1111/j.1468-5957.1994.... (I've only read the abstract)
377.
▲
by
xioxox
9y ago
Spiral galaxies tend to have regular rotation, but elliptical galaxies are much more like a globular cluster, although globular clusters aren't thought to contain dark matter. It's just a lot of stars going round in random orbits.
378.
▲
by
xioxox
9y ago
In an LMXB the companion object is a neutron star or black hole. This isn't necessarily what people would call a star, so it may be more confusing to call it a binary star.
379.
▲
by
xioxox
10y ago
PDF is not a Turing-complete, but Postscript is. PDF removed several features which made Postscript a programming language.
380.
▲
by
xioxox
10y ago
The Thompson et al paper linked is precisely a probability for pairs of clusters, so needs to be scaled (see comments on article). There's a nice comment in the article by Peter Erwin giving an overview of a list of recent papers:
381.
▲
by
xioxox
10y ago
As far as I know, you need to be able to compute the gradient of the function being explored to use this method. Is that correct? Most of my likelihood functions I use are nasty and complex. I've mostly been using an affine-invariant s
382.
▲
by
xioxox
10y ago
I wouldn't agree with that post - the probabilities and number of clusters imply we'd expect a bullet cluster. In fact, we observe other similar lower-mass systems. As an astronomer in the field of clusters, I don't know anyo
383.
▲
by
xioxox
10y ago
There are several public archives for radio astronomy. Find your favourite telescope which allows public proposals for observations and search for archive. e.g. VLA: https://science.nrao.edu/facilities/vla/archive&
384.
▲
by
xioxox
10y ago
Interesting. This is similar to how some X-ray and gamma ray detectors did work or work in astronomy. Because you can't focus with lenses, you use narrow tubes (collimators) to only gather the light from a certain region of the sky. No
385.
▲
by
xioxox
10y ago
Credit cards are popular in the UK, though 2.8x more is spent on debit cards. Total spends on credit and debit cards are £174B and £486B, respectively. For some numbers see pg 9 of the UK Card Payments 2016 report here: http://ww
386.
▲
by
xioxox
10y ago
I use KDE on a day-to-day basis, but I wouldn't call it that predictable. They're still infected by the rewrite and change everything disease. They also introduced pointless frameworks like anakondi which had dreadful performance
387.
▲
by
xioxox
10y ago
Germany has also had massive cost problems with some projects, such as the Hamburg concert hall. There's also the Berlin airport which is years late and has costs over twice of what was expected.
388.
▲
by
xioxox
10y ago
In Germany, we have something called SOFORT Überweisung which logs into your bank account to do online payments. As a non-German, I'm not sure how this is allowed, but it seems to be long-standing business. I don't think most of t
389.
▲
by
xioxox
10y ago
Python mostly uses reference counting, but has a garbage collector which periodically checks for cycles. It's even possible to disable the garbage collector.
390.
▲
by
xioxox
10y ago
Have you tried python3-pykde4? It seems to contain a pykdeuic4.py file.
More ›