yk

62 ms·

631.
by yk 11y ago
And this is, why there sits a Linux PC next to my "smart tv" in my living room. The thing about "smart tvs" and I imagine freezers is, that the friendly easy to use interface creates problems that were solved in the earl
632.
Clown Genius – Scott Adams on Trumps Strategie(blog.dilbert.com)
5 points by yk 11y ago|0 comments
633.
by yk 11y ago
Sort of, the capacity of fibers growth faster than the Internet usage. (But of course carriers need to upgrade their routers regularly.) Additionally most of the cost of ISP's is fixed cost, to build capacity, not variable with the tot
634.
by yk 11y ago
Well, if you have less length quanta then we could call them a unit of length, they would no longer be any kind of fundamental property. ( But actually the notion of a particle is a rather big problem of quantum field theory in curved backg
635.
by yk 11y ago
Roughly because of Lorentz boost, aka length contraction. So if I take some distance, say 1m, and I look at it from relativistic speed it gets contracted. And if I do that from high enough speeds, it gets contracted below the Planck length,
636.
The High-Stakes Race to Rid the World of Human Drivers(theatlantic.com)
1 points by yk 11y ago|0 comments
637.
by yk 11y ago
It is a trap in the sense, that nothing he discusses is convincing me that it is any more than a simple application of a general theorem. ( See my example above, obviously we learn nothing about physics, we just shift the missing informatio
638.
by yk 11y ago
I think Stephen Wolfram fell in the trap, that any continuous dynamical system can be approximated by a discrete one. His position is a bit like claiming the fundamental theory of the universe is Brainfuck. Proof: I can encode general relat
639.
by yk 11y ago
Speaking as someone who writes science fiction short stories sometimes, that is putting my jester cap on: That will not happen, the other current trend for cars is autonomous vehicles, so you can send your car to a charging station somewher
640.
by yk 11y ago
It is not the stupid who run Russia, in fact looking at Syria Putin seems to be the only one with a realistic goal in that war. The Russian interests are their access to the Mediterranean and following from that they want to aid their ally,
641.
by yk 11y ago
If you assume the oligarchy is some fraction f of the population, and you select n representatives, then you expect only nf instead of n representatives of the oligarchy. And since f << 1, the oligarchy can not gain control of the leg
642.
by yk 11y ago
In 1905 Einstein was not only working as a patent clerk, he was also finishing his PHD thesis. (He got it for his paper on Brownian motion.) The other two papers, special relativity, for which he is famous, and the photo electric effect, fo
643.
by yk 11y ago
The last time the west waged a war of ideology was the cold war, that one went pretty well all things considered.
644.
by yk 11y ago
The point of terrorism is to provoke a reaction. To quote the German RAF terrorist Ulrike Meinhof on the subject: "A war 6 against 60 million can not be won. All we [the terrorist] can do, is to tear down the mask of democracy and expo
645.
by yk 11y ago
Best thing about this railgun is the optical effect. The spark shower looks like a really cheesy science fiction movie.
646.
by yk 11y ago
Depends on your favorite measure for atrocities, there was a civil war in Russia, there were the Stalinist purges all over the Soviet Union, there was the colonization of the Asian part of Russia and there was Holdomor. Each of these are am
647.
by yk 11y ago
For example Bloodlands by Timothy Snyder. Especially in Ukraine starting in the early '30ies, but also in eastern Poland from '39 onwards, the NKVD had a quite horrendous human rights record. So the Nazi troops were greeted at l
648.
by yk 11y ago
Reminds me on a recent conversation at a maker space: How do you control it, a transistor and a oscillator? Nah, just an Arduino. So with micro controllers we loose a lot of applied knowledge of analog circuits and I suspect s
649.
by yk 11y ago
No, you want to burn all the short lived isotopes, not just Uranium. So the designs I am talking about use spend fuel dissolved in acid as a fuel. There is also spent fuel recycling, where you take Uranium and Plutonium out of spent fuel an
650.
Reading should not carry a health warning(aeon.co)
2 points by yk 11y ago|0 comments
651.
by yk 11y ago
As much as they are for us. Dark matter is matter that only reacts to us via gravity, so the effect of a black hole which also only acts via gravity^1 is the same for them as for us. ^1 I am ignoring charged black holes here, because astron
652.
by yk 11y ago
Yes, up to first order. ( So it seems implausible that a rather small EM thruster would provide trust, but the thing is already implausible in the first place.)
653.
by yk 11y ago
With the news of the EM drive today, probably he confused himself with unclear notation on line 57 of the proof. ( It would be cool if he pulled it off, but even highly respected scientists make mistakes, and a blog post based on the title
654.
by yk 11y ago
I agree, or actually I assume that the disagreement is only about words. I would not call it new physics, if, for example, we have to couple quantum fields to GR in a not straightforward way, so in the case were we already know all the part
655.
by yk 11y ago
The designs I have seen dissolve the spent nuclear fuel in phosphoric acid and then operate with liquid fuel. ( Perhaps there are proposals that do not operate like that, but I think you want to homogenize the fuel as much as possible which
656.
by yk 11y ago
I think violation of conservation of momentum is more likely than new physics. Basically, if this thing produces a general relativity effect, then it is possible that momentum is not conserved because the underlying metric does not have tra
657.
by yk 11y ago
Because burning it involves superheated, radioactive phosphoric acid.
658.
by yk 11y ago
Its roughly 5 TWh per 2h (to spare you the algebra, thats 2.5 TW power generation) Source: https://en.wikipedia.org/wiki/Electrical_power_generation
659.
by yk 11y ago
Thing is to reduce the electrical output of a reactor, you can either reduce the thermal output, but then the entire reactor core needs to cool, or you have to reduce the efficiency of the electricity generation. In the first case we are ta
660.
by yk 11y ago
Thing is, catastrophic failure occurs if safety assumptions fail. There is nothing in your argument that improves my opinion of the current safety assumptions.

More ›