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ref: -0 tags: tungsten rhenium refactory metals book russia metalurgy date: 10-31-2016 05:14 gmt revision:1 [0] [head]

Physical Metallurgy of Refactory Metals and Alloys

Properties of tungsten-rhenium alloys

  • Luna metals suggests 3% Re improves the tensile strength of the alloy; Concept Alloys has 26% Re.
  • This paper mesured 20% Re, with a strength of 1.9 GPa; actual drawn tungsten wire has a strength of 3.3 GPa.
    • Drawing and cold working greatly affects metal, as always!

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ref: -0 tags: bookmark Cory Doctorow EFF SOPA internet freedom date: 01-01-2012 21:51 gmt revision:0 [head]

The Coming War on General Computation "M.P.s and Congressmen and so on are elected to represent districts and people, not disciplines and issues. We don't have a Member of Parliament for biochemistry, and we don't have a Senator from the great state of urban planning, and we don't have an M.E.P. from child welfare. "

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ref: life-0 tags: IQ intelligence Flynn effect genetics facebook social utopia data machine learning date: 10-02-2009 14:19 gmt revision:1 [0] [head]

src

My theory on the Flynn effect - human intelligence IS increasing, and this is NOT stopping. Look at it from a ML perspective: there is more free time to get data, the data (and world) has almost unlimited complexity, the data is much higher quality and much easier to get (the vast internet & world!(travel)), there is (hopefully) more fuel to process that data (food!). Therefore, we are getting more complex, sophisticated, and intelligent. Also, the idea that less-intelligent people having more kids will somehow 'dilute' our genetic IQ is bullshit - intelligence is mostly a product of environment and education, and is tailored to the tasks we need to do; it is not (or only very weakly, except at the extremes) tied to the wetware. Besides, things are changing far too fast for genetics to follow.

Regarding this social media, like facebook and others, you could posit that social intelligence is increasing, along similar arguments to above: social data is seemingly more prevalent, more available, and people spend more time examining it. Yet this feels to be a weaker argument, as people have always been socializing, talking, etc., and I'm not sure if any of these social media have really increased it. Irregardless, people enjoy it - that's the important part.

My utopia for today :-)

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ref: bookmarks-0 tags: OCaml books date: 04-05-2008 22:20 gmt revision:2 [1] [0] [head]

Ocaml books / references:

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ref: bookmark-0 tags: DSP filter webdesign fisher book date: 12-12-2007 06:15 gmt revision:0 [head]

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ref: bookmark-0 tags: DSP Benford's law Fourier transform book date: 12-07-2007 06:14 gmt revision:1 [0] [head]

http://www.dspguide.com/ch34.htm -- awesome!!

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ref: bookmark-0 tags: book information_theory machine_learning bayes probability neural_networks mackay date: 0-0-2007 0:0 revision:0 [head]

http://www.inference.phy.cam.ac.uk/mackay/itila/book.html -- free! (but i liked the book, so I bought it :)