Human folly for 02017-01-14

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• A dispatch from the front line of the war on whites (mcsweeneys.net):

  #humor #culturewar #swpl

• Why do test scores plateau (slatestarcodex.com):

  a comment on #education and #spaced-practice

• Lincoln index (johndcook.com):

  using the Lincoln Index to estimate how many bugs will eventually be found as a function of the past history of bug discovery

• Syllabus (gryllus.net):

  syllabus for a course in the #3D #graphics program #Blender by Neal Hirsig

• Castable (goshen.edu):

  castable #refractory #materials recipes for a kiln for soda-vapor #ceramics

• Wollastonite phosphoric acid (cone6pots.ning.com):

  a recipe for castable #refractory made with wollastonite and phosphoric acid, generating calcium phosphate (hydroxyapatite, like bone) and amorphous silica. Supposedly doesn’t melt until 1670°; the phosphate acts as a cement. #materials

• 5599 looking for recipe for light weight kiln bricks for electric kiln (community.ceramicartsdaily.org):

  discussion thread on recipes for insulating #refractory bricks for #ceramics kilns. #materials

• Showthread (alloyavenue.com):

  another discussion thread on recipes for castable #refractory #materials

• Castable (artistpotters.com):

  a castable #refractory recipe that recommends using calcium aluminate cement rather than portland. #materials

• 27446 refractory formula (iforgeiron.com):

  more #refractory #materials recipes

• Gsdlmod (nzdl.org):

  an excerpt from “The Self-Reliant Potter”, “a ceramic book specifically to suit conditions in developing countries originated from my [Henrik Norsker’s] personal experience and associated problems whilst I was struggling to set up modern pottery production in a Tanzanian village ten years ago [before 1985]” on #refractory #materials and techniques. #ebook

• Item (news.ycombinator.com):

  discussion on Rougier’s #Numpy ebook

• From Python to numpy (labri.fr):

  #Numpy #ebook by Nicolas P. Rougier, cc-nc-by-sa, full of awesome #vectorization and #performance tricks

• Deep work a Welcome kick in the butt (cpbotha.net):

  a blog post about Cal Newport’s book “Deep Work”, describing how the author is endeavoring earnestly to increase his #productivity by following the book’s advice. #self-help

• The swedish kings of cyberwar (nybooks.com):

  #Sweden’s citizens largely support its espionage at the behest of the NSA. #politics #human-rights

• Whats a fire and why does it whats the word burn (qchu.wordpress.com):

  a brief explanation of the quantum #physics of flame colors

• Horrorvacui (fractalcurves.com):

  #fractals #ebook "Brainfilling Curves"

• From OSX to Ubuntu (nicolas.perriault.net):

  Nicolas Perriault switched back to #Linux after 10 years on #MacOS now that #Apple is kind of sucking

• Sample scripts (github.com):

  sample AutoKey scripts include replacing the current selection with stuff

• Linearregression (ufldl.stanford.edu):

  The first chapter of the famed "UFLDL Tutorial" #ebook (“Unsupervised Feature Learning and Deep Learning”) on #machine-learning covers linear regression; later it covers #deep-learning and other #neural-networks.

• (eprint.iacr.org):

  #PDF #paper “NaCl on 8-Bit #AVR Microcontrollers” requires 23 million cycles to Ed25519-sign, 32 million cycles to verify, 268 cycles per byte for symmetric Salsa20 encryption, 195 cycles per byte for Poly1305 authentication, all in under 18 kB of code and 1.4 kB of stack; all constant-time. #crypto