kurtosis

9 ms·

31.
by kurtosis 16y ago
A very nice introduction - There is a also a lot of interesting material on these topics in the academic literature. Here's a couple of nice examples: (1) M. Newman's publications contain a wealth of ideas and insights into these topics:
32.
by kurtosis 16y ago
I'm too lazy to look this up, but did the video get smaller or larger with the iteration number? This is more interesting to me than the look
33.
by kurtosis 16y ago
It is the boltzmann equation of kinetic theory. It is a differential equation for a 6 dimensional function f(r,v) which describes the number of particles at location r, with velocity v. This distribution changes as the particles fly throu
34.
by kurtosis 16y ago
are you serious about this common sense business? There are a lot of plausible reasons why "baby talk" could actually be essential for linguistic or emotional development. While it does seem dumbed down to an adult, in some ways it simplif
35.
by kurtosis 16y ago
I admit I love the sight of a periodic table, but I think this abuses the metaphor. Elements on the periodic table aren't ordered by their rank (abundance in earth or in space) and the grouping of the elements in rows and columns has a ver
36.
by kurtosis 16y ago
Hey this is pretty impressive - for a web browser. It gets a little bogged down when you have 3 molecule windows open, but I'm only using firefox. What is the point of the periodic table window? Does this have a function? Something like t
37.
by kurtosis 17y ago
Well I love python, but this reminds me of a set of an old paper by Peyton-Jones of GHC fame, which developed a Haskell combinator lib that did something like this. I'm sure the state of the art has left this system long behind, but it's a
38.
by kurtosis 17y ago
Perhaps I am mistaken but wasn't there once a google streetview for Berlin? I'm not 100% sure but I seem to remember looking at it before I moved there, but when I arrived I tried using it and noticed that it was disabled. I believe that t
39.
by kurtosis 17y ago
fair enough, but in these cases we still get a second order benefit from ungrateful jerks. Let's complete the sentence "I bet I could make tons of money by X because people think Y sucks and would hand over cash to avoid X" of course, hats
40.
by kurtosis 17y ago
An off-topic Complaint: I was going to read this article, but halfway through the first paragraph some stupid ad blocked my view. I'll definitely think twice before clicking through on anything pointing to inc.com again.
41.
by kurtosis 17y ago
This observation is pretty hilarious. But surely the reason that technology progresses so fast is that there are always people complaining and striving to improve on these trivial inconveniences. I have no doubt that the motivation for th
42.
by kurtosis 17y ago
I'm really surprised at the negative reaction to this article! For what it's worth here's a great (much more mathematically sophisticated) article on this topic (that is nonetheless still quite speculative in its tone) http://www-stat.sta
43.
by kurtosis 17y ago
Yeah it sounds cool - I don't know that this is real just a rumor. A lot of things that sound cool turn out to have serious problems. I saw something on here a while about a "marketplace for data" - I can't remember what it was called - bu
44.
by kurtosis 17y ago
I've heard rumors that visa uses its purchase records as a leading indicator to trade in stocks. Having all of these sales records gives them a leading indicator of how a particular retailer is performing, before the company releases any s
45.
by kurtosis 17y ago
"If someone tries to sell you non-relativistic gold you are being had!" This is mostly a concern for theorists who prefer to go as far as possible with non-relativistic theories. This relativistic shift also has large implications for the b
46.
by kurtosis 17y ago
I've heard this said many times - that in the U.S. there is less of a "stigma" against founding a company that happens to not work out (for any number of reasons). Can anyone here give examples of how this stigma is more severe in non-U.S.
47.
by kurtosis 17y ago
Whoa! I remember trying an experiment a lot like this when I was in high school with a girlfriend that was really into psychology. She would go onto my bookshelf and place a book there that was new or should be unfamiliar to me and then we
48.
by kurtosis 17y ago
Yeah - especially metals like Fe, Co, and Ni where the conduction electrons are derived from the atom's d-orbitals. The hopping is one of the key elements of the "hubbard" model. This viewpoint doesn't add very much if you want to calculat
49.
by kurtosis 17y ago
This is quite discouraging to read - the author sets out to correct many common misconceptions but ends up introducing many more - (e.g. electrons don't "hop" from atom to atom (there are some quite useful models of metals based on hopping)
50.
by kurtosis 17y ago
With regards to cryogenic applications: Right now a 500 L dewar of liquid He costs about $500 USD. (more for some locations in EU) You can already buy regenerators that capture the boiled off LHe and this can save a good amount of money wi
51.
by kurtosis 17y ago
I'd personally like to see more support for people gathering more diverse data sets. If private companies feel it is in their interest to share their data with others and contribute to scientific knowledge then this is wonderful. Obviousl
52.
by kurtosis 17y ago
Is CS becoming like particle physics? They should also mention the very nice recent flow of ideas from theoretical physics into the field of probabilistic inference: Many algorithms that make the analysis of these data sets possible either
53.
by kurtosis 17y ago
I find myself very sympathetic to your view - especially the part about not wanting to pay for wars. I have also frequently heard people claim that entitlement programs to support the elderly are "unsustainable" - but I honestly don't unde
54.
by kurtosis 17y ago
I'm not sure if they'll make it or not, but Milo is one of those rare startups that actually solved a real problem for me! I needed to buy a laptop battery within three hours in Atlanta GA and had no idea where to go. I messed around calli
55.
by kurtosis 17y ago
If anyone is interested in a more tractable experimental platform for the study of this effect - it has also been observed for light propagating in an optical fiber. There is an interesting analogy between the nonlinear wave propagation eff
56.
by kurtosis 17y ago
So it is probably inevitable that the price of diamonds will plunge, but there are still amazing possibilities with synthetic gems. It should be possible to create synthetics with careful control of impurities so that they have designer op
57.
by kurtosis 17y ago
I have no beef with open audits of published science that is used in decisions of economic consequence. But I would only add that sometimes you learn a lot more from trying to reproduce a result without the code/schematics of the original e
58.
by kurtosis 17y ago
Whoa, the same thing happened to me with a guy named Sam, only I was a bit naive, and foolishly gave the debt collection scumbags my information early in the ordeal. Some collection agent actually called my family far far away looking for
59.
by kurtosis 17y ago
In many cases the prof is doing the absolute minimum so they can focus on research. The lectures are often unoriginal (they are cribbed directly from the book). So someone sincerely interested in learning would be better off reading a few
60.
by kurtosis 17y ago
I've heard the story where there was a 10x difference in the time it took CS students to complete a series of system programming assignments, but are there other anecdotes out there? I'm very suspicious of this story, and think that a lot

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