speakeron

8 ms·

31.
by speakeron 6y ago
Imagine some water freezing. This will often start from a nucleation point and spread out rapidly. If this hits another volume of water nearby that's doing the same thing, you might get a crack in the ice where they hit each other. Thi
32.
by speakeron 6y ago
50 nmol/l (20 ng/ml) is right in the middle of the 'insufficient' range. Did you mean ng/ml? The upper limit for most labs is between 175 and 200 nmol/l. In my personal example, taking about 6000 UI (plus 300 m
33.
by speakeron 6y ago
The lack of microlensing evidence is one reason. The other is that there are constraints on the amount of baryonic matter in the universe from nucleosynthesis calculations in the Big Bang (i.e. the extra missing matter needed to account for
34.
by speakeron 6y ago
The birthday problem isn't applicable here, because you're trying to match a specific combination rather than looking for any matching pair. So the average number of attempts needed is indeed 4096/2. This is the same as the d
35.
Age-related decline in eyesight may be improved by staring at red light LEDs(bioquicknews.com)
3 points by speakeron 6y ago|1 comments
36.
by speakeron 6y ago
Wasn't Knight Lore[1] on the Sinclair Spectrum (which came out in 1984) a 3D platform game? I certainly remember the buzz about it at the time where it seemed to be a qualitative leap in games technology. [1] https://en.wiki
37.
by speakeron 6y ago
I don't think any of these are particularly convoluted; they're in straightforward procedural code with a line for each letter. Most programmers could adapt the code to produce another string without too much effort. What I'd
38.
by speakeron 6y ago
The reductio ad absurdum of utilitarianism was, of course, Eliezer Yudkowsky's "Torture vs Dust Specks"[1] [1] https://www.lesswrong.com/posts/3wYTFWY3LKQCnAptN/torture-vs...
39.
by speakeron 6y ago
The pancreas is described by physics. Can a Turing machine make insulin?
40.
by speakeron 6y ago
This calculator[1] indicates that the temperature for a 2.5 cm radius black hole should be 0.007 K. So below the temperature of the cosmic background (2.7 K). [1] https://www.vttoth.com/CMS/physics-notes/311-hawkin
41.
by speakeron 6y ago
That's beautiful. It's just begging for translation overlays on the exquisite wall detail.
42.
by speakeron 6y ago
It doesn't really say that: it just repeats the standard advice that 4000 IU is the safe upper limit. The real answer is to get yourself tested regularly if you supplement large amounts of D3. (I'd advise taking K2 with it too, bu
43.
by speakeron 6y ago
2% (2 orders of magnitude above 0.02%) of 8 million (approximately the population of NYC) is 160,000 people. So that's clearly wrong being more than 3 times the entire US deaths. The numbers you've seen are probably deaths of inf
44.
by speakeron 6y ago
> Now I can be confident in what I'm getting when I buy a Western Digital drive. Good for them! Are you confident that you'll get a drive that can work in a NAS when on the very same blog page they claim "WD Red HDDs are i
45.
by speakeron 6y ago
Yes, it's called extracorporeal membrane oxygenation. The wiki article mentions that it was used on 3% of severe cases in China. https://en.wikipedia.org/wiki/Extracorporeal_membrane_oxygen...
46.
by speakeron 6y ago
From the article: There are other things we can do as well to avoid immediately resorting to intubation and a ventilator. Patient positioning maneuvers (having patients lie on their stomach and sides) opens up the lower and posterior lungs
47.
by speakeron 6y ago
https://www.youtube.com/watch?v=QOtuX0jL85Y
48.
by speakeron 7y ago
It should be taken with vitamin K2. The theory is that it aids calcium absorption into bones rather than dumping into arteries. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4566462/
49.
by speakeron 7y ago
I take about 5000 IU daily (with one or two days off every 10 days or so). I get tested regularly and measure at the top of the lab's 'normal range' (200 nmol/l). I also take vitamin K (especially K2).
50.
by speakeron 7y ago
Could be a one-shot Dyson Sphere designed to capture the energy of a supernova. Like an advanced civilization's version of a nuclear explosion-pumped X-ray laser[1] [1] https://en.wikipedia.org/wiki/X-ray_laser
51.
Consciousness Cannot Have Evolved(iai.tv)
2 points by speakeron 7y ago|2 comments
52.
by speakeron 7y ago
Lucid dream research done in the 1970s had subjects signalling from within a dream using eye movement. https://www.researchgate.net/publication/258201870_Lucid_dre...
53.
by speakeron 7y ago
> In the contrary, Intel has a lot of failures the last 2 years. Spectre, meltdown, ... This isn't bad luck anymore, it's more like bad karma if you are religious It's more like regression to the mean.
54.
by speakeron 7y ago
https://www.youtube.com/watch?v=vq2BxAJZ4Tc is also a very good series and gets into infinite collapsing ordinals towards the end.
55.
by speakeron 7y ago
The video is a basic introduction to the fast-growing hierarchy. They do state where Graham's Number sits in the hierarchy, but the explanation doesn't go as far as to say where TREE sits.
56.
by speakeron 7y ago
First program I ever wrote on a Sinclair Spectrum was to spin a disk on the screen. I was disappointed with the performance, so for the second program I precalculated the sin/cos values and stored them in an array (and learnt that all
57.
by speakeron 7y ago
A quantum computer can find hash collisions in the square root of the time a classical computer can using Grover's algorithm. (So a 256-bit hash becomes as difficult as a 128-bit hash to reverse). Symmetric encryption (e.g. AES) is the
58.
by speakeron 7y ago
Boris Johnson has a proven record of lying (he was even sacked from The Times for fabricating a quote). Why assume his veracity in his quotes about the future of the UK?
59.
by speakeron 7y ago
Hambini has a good article on this[1]. The basic problem (apart from cost) is that only the ball bearing itself is ceramic; the inner and outer races are made of steel and the ball wears a groove into them which increases friction over time
60.
by speakeron 7y ago
> Agree with take off and cruising, but landing is magnitudes more complex, at least much more difficult for humans. Do you have a source that this is reliably automated? Landing has been automated since the 1960s. The first airplane to

More ›