The latest blog posts to take off on Hacker News. 2,038 posts.
Нельзя заходить в спальню к богу, Даже если его там нет. Нельзя заходить в спальню к богу, За дверью большой секрет - Ундервуд. Буквально вчера, 02 июня 2015 года, исполнилось 60 лет колыбели мировой космонавтики и крупнейшей отечественной космической гавани - космодрому Байконур. За эти годы…
Is it possible that our problems indicate a flaw in the theory of gravity?
I have recently been going through my book Maths 1001 making updates for a forthcoming foreign edition (of which more in future). So I have been looking over mathematical developments since approxi…
Clifford Algebra, a.k.a. Geometric Algebra, is a most extraordinary synergistic confluence of a diverse range of specialized mathematical fields, each with its own methods and formalisms, all of wh…
The Universe was 99.999999% Hydrogen and Helium after the Big Bang. Billions of years later, there’s a new contender in town.
Along with almost getting hit by a car, he made important contributions to the atomic bomb's design.
[Epistemic status: Low confidence. I have found numbers and stared at them until they made sense to me, but I have no education in this area. Tell me if I’m wrong.] I. There has recently been…
Attention conservation notice : Once, I was one of the authors of a paper on cellular automata . Lawyers for Wolfram Research Inc. threatened to sue me, my co-authors and our employer, because one of our citations referred to a certain mathematical proof, and they claimed the existence of this proof was a trade secret…
I’ve been meaning to link to this post at the arXiv blog , which is a great source of quirky and interesting new papers. In this case they are pointing to a speculative but interesting paper by Martin Perl and Holger Mueller, which suggests an experimental search for gradients in dark energy by way of atom…
[Other posts in this series: 2,3,4.] I had the chance to have dinner tonight with Paul Ginsparg of arXiv fame, and he graciously gave me some feedback on a very speculative idea that I’ve been kicking around: augmenting — or even replacing — the current academic article model with collaborative d
► Versión en Español (The title should be "if (= (+ 1 x) 1), how much is (- 1 x)?", but ...) Toy floating point Mathematically, if we...
You probably that planets go around the sun in elliptical orbits. But do you know why? In fact, they’re moving in circles in 4 dimensions. But when these circles are projected down to 3-dimen…
Recently I stumbled upon an interesting paper for implementing motion sensing requiring no special hardware, only a speaker and mic ! Unfortunately the paper didn't include code to test it, so I decided to reproduce it here on the web!
It's now clear I'm on a Black Hole binge (I can stop when I want, by the way). They're endlessly fascinating. My recent interest was in particular focused on simulating visualizations of the Schwarzschild geometry. I was preoccupied by the problem of generating a decent accurate representation of how the curvature of…
To reject gods and spirits is easy: just bully them away in the name of science.
This text is designed to accompany your study of introductory digital signal processing. 1 It’s an eccentric piece of not-so-rigorous literature with a preoccupation for explaining things using interactive visualizations, animations and sound. 2 My goal is to explain the Discrete Fourier Transform using a miniature…
It’s one of the nearest red supergiants to us, and a supernova is only a matter of time. What are we in for when it happens?
Check out Animagraffs on youtube > .
The original paper that introduced the simulation argument
Graham's number is so big, we need a whole new set of tools to even discuss it.
An-225 Mriya (which is referred to Dream from Ukrainian) is the heaviest airlift cargo aircraft ever taken off in the sky. The maximum takeoff weight makes 640 tons. An-225 was designed, due to the necessity to create the air transport system for the Soviet reusable Space Shuttle Buran. This is the…
Formal Theory of Creativity & Fun & Intrinsic Motivation (1990-2010) by Jürgen Schmidhuber
John D. Norton Department of History and Philosophy of Science and Center for Philosophy of Science University of Pittsburgh http://www.pitt.edu/~jdnorton This page at http://www.pitt.edu/~jdnorton/Goodies Prepared to accompany cityLIVE! "everything einstein" November 15, 2007, 6:30 pm The New Hazlett Theater…
