gattr

18 ms·

181.
by gattr 6y ago
The Reddit thread suggests making Windows Registry changes to re-enable S3; however, in the latest laptops S3 is no longer even advertised by the BIOS. Just as in my December Inspiron 7506 - I got suspicious when, after putting to sleep, th
182.
S3 standby support removed from BIOS in recent Dell laptops(reddit.com)
3 points by gattr 6y ago|2 comments
183.
by gattr 6y ago
Non-integer scaling has been working fine for me for a few years now. I use Fedora + KDE, 175% on my 24" 4K monitor and 225% on 4K 15.6" laptop. I just had to manually increase the mouse cursor size, and in Firefox change layout.c
184.
by gattr 6y ago
Regarding display scaling: it's been working well for me in Fedora (X-Window + KDE) for a few years now, on a 13.3" FullHD laptop (scale set to 118%) and a workstation with 4K 24" monitor (scale 175%). Just had to manually in
185.
by gattr 6y ago
> The things that annoy me about Linux are the lack of system upgrade options, you basically have to reinstall from scratch every time I'm using Fedora as my main OS (on the laptop since 2011, on the desktop since 2015) and here it&
186.
by gattr 6y ago
That's incorrect. We do use glass for large mirrors and it works just fine ([1], [2.1], [2.2]). Do not confuse these two effects: 1. Viscous liquid-like creep (does not occur). 2. Elastic deformation (sagging) under gravity - this of c
187.
by gattr 6y ago
To add some detail: a common minimum quality criterion for optical surfaces is λ/4 (divergence from an ideal surface), where λ is the wavelength used. For visible light this gives about 100 nm (though large professional telescopes are
188.
by gattr 6y ago
Same! I do it for both the monitor and the TV, with two cheap "Ingared" lamps from IKEA; can recommend.
189.
by gattr 6y ago
Tangentially related - I've just checked, luckily HBO GO still works (Fedora 31, Firefox 78.0.2).
190.
by gattr 6y ago
I guess - we have maps of galaxy distribution out to a few billion light years, like the one from the 2dF survey [1]. "Celestial North/South Poles" are just the points in the sky in the direction of the Earth's rotation
191.
by gattr 6y ago
Seconded. As I mentioned when this last came up, I encourage to read also Stephen Baxter's "Flux". (Even crazier, here the lifeforms dwell inside the neutron star, in the neutron superfluid.)
192.
by gattr 6y ago
As regards frequency of civilizations occurring, I've read recently an interesting take: when we look at the Earth, each of the following milestones seems exponentially more difficult (i.e., probability density is far smaller for each)
193.
by gattr 6y ago
"But wait, how can you perform telescopic observations in X-rays? They tend to penetrate matter (including telescopes), right?" Correct, normal optics would not work. X-ray telescopes use grazing incidence mirror arrangement (Wolt
194.
by gattr 6y ago
And here's my incantation for screen recording under X Window (also used one like it under MS Windows, but I don't have it on hand): ffmpeg -rtbufsize 2147M -f x11grab -video_size 1920x1080 -i :0.0 -r 30 -preset ultrafast -vco
195.
by gattr 6y ago
I second that (I've been using a Markus for >10 years). I only wish it had larger/adjustable armrests; though it's easy to replace them with something home-made (and reuse the mount points).
196.
by gattr 6y ago
Dobsonians scale well; here [1] is Dr. Hänssgen's 42" telescope, which can be de/assembled and un/loaded for transport by one person. [1] http://www.cruxis.com/scope/scope1070.htm
197.
by gattr 7y ago
I also often wake up before the alarm, and the delta is on the order of tens of seconds. I'd say I definitely get to become fully awake and start thinking about the upcoming day before it rings. Apparently, just a matter of quite a pre
198.
by gattr 7y ago
Me and my brother also played with Lego since late '80s (and we too didn't have many sets). Once we moved from "Castle" to the simple "Technic" ones, I kept dreaming about getting one day the Supercar set or on
199.
by gattr 7y ago
By measuring polarization of the received radio-frequency signals. The polarization is affected by magnetic fields ("Faraday rotation", see [0, 1]). [0] https://en.wikipedia.org/wiki/Faraday_effect#In_the_inte
200.
by gattr 7y ago
The word is derived from "wrzos" = heather.
201.
by gattr 7y ago
Charless Stross has illustrated this in his novel "Accelerando" (strongly recommended!). In the future, even though interstellar travel is technologically feasible, (almost) no one does it - because why the hell would any of the p
202.
by gattr 7y ago
I have rewritten my small-ish image processing library [0] in Rust (from C) and liked it! I mainly wanted to learn, also Rust forced me to improve the API a bit. [0] https://github.com/GreatAttractor/libskry_r
203.
by gattr 7y ago
The free, cross-platform program Stellarium [0] will show that (among other things). [0] http://stellarium.org/
204.
by gattr 7y ago
I heard an anecdote from a ninjutsu instructor (a European). He was visiting Japan, meeting with friends; and to one of the meetings he wore a T-shirt with the Nin kanji. Suddenly one of his hitherto very friendly acquaintances changed to b
205.
by gattr 7y ago
For me, I would like to have the Focus available, lock up a few hundred volunteers somewhere for a few months and have thew rewrite the Linux kernel in Rust or something... "A Fire Upon the Deep" and its differentiation are refere
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by gattr 7y ago
Vernon Vinge's "A Deepness in the Sky". Includes very well put thoughts on the far future of software. Also his "A Fire Upon the Deep" with a fascinating take on AI, cryptography and more in a slightly alternative u
207.
by gattr 7y ago
You are mistaking two effects. Indeed, glass does not "flow" (it's not a "very, very viscous liquid"); but most assuredly it does sag under gravity - just as a heavy steel beam supported at the ends would. This prob
208.
by gattr 7y ago
An interesting usage example for very black materials (which are required to be effective also at grazing incidence angles) is flocking the insides of amateur telescopes. Not that it's always necessary, but can help in some poor design
209.
by gattr 7y ago
Also the Fresnel reflection coefficient comes into play [0]: water surface has higher reflectivity at grazing-incidence angles than at those close to the surface normal. [0] https://en.wikipedia.org/wiki/Fresnel_equatio
210.
by gattr 7y ago
To be precise: lifetimes are denoted by an apostrophe. (Backtick can be used in comments for Markdown formatting.)

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