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macoovacanyon DConf 2026 in London

Going to include the common lisp condition system in the comparison?

macoovacanyon Reader Macros in Common Lisp (2014)

https://movitz.common-lisp.dev/

macoovacanyon Ask HN: How do you keep your interesting bookmarks

Create your own subreddit.

Submit links to subreddit of the websites you want 'bookmark'.

Done: an online bookmark list.

macoovacanyon Ask HN: How do you keep your interesting bookmarks

Subreddit

https://www.reddit.com/r/macoovacany

macoovacanyon Door blows off Boeing 777X during stress test

Ok, I'm hijacking this thread because there's some confusion about 'limit' load.

http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgFAR.nsf...

macoovacanyon Anna Karenina Principle

Assumes the exit is on the periphery and you're not stuck on a loop (a free standing wall in the interior).

macoovacanyon FBI tells lawmakers it can't access Dayton gunman's phone

Why not?

Is it somehow morally reprehensible? Because it would be ineffective? Do you want the govt to see your dick pics?

I'm curious about about your flat out rejection of this proposal.

macoovacanyon Lisp System Implementation

The free pdf preview seems to consolidate some of the concepts from the register machine chapters of SICP.

macoovacanyon The many human errors that brought down the Boeing 737 Max

Hot wire anemometers are very, very fragile. Installation on aircraft is not practical - a bug strike would render it inoperative.

macoovacanyon The many human errors that brought down the Boeing 737 Max

Off the top of my head, there are at least two more potential ways of measuring AoA: 1. Similar to your ultrasonic lattice, but using a cone of hot wire anemometers, so that each wire is set at an offset angle to the 'zero' direction. As the AoA changes relative to the cone, the resistance on the different hot wires changes (some wires become more perpendicular to the freestream, thus cooler; others will align closer to the freestream with less opportunity to cool). By measuring the resistance differences with a bridge, it's possible to derive, angle of attack, sideslip and airspeed. 2. An elliptical body with various pressure ports around the circumference, plus a pitot port. The angle of the flow can be measured by the difference in pressure between the circumference ports (and dividing by the pitot pressure).

macoovacanyon The SR-71 Spy Plane Was So Fast, It Outran Every Missile Fired at It

Talk by the A-12 pilot, Frank Murray. Refers to the SR-71 as the "family model".

https://www.youtube.com/watch?v=MGdxpqqsHl8

macoovacanyon The SR-71 Spy Plane Was So Fast, It Outran Every Missile Fired at It

YF-12 development film. Check out the avionics test.

https://www.youtube.com/watch?v=Z1FLEbAbl4Q

macoovacanyon Deformities Alarm Scientists Racing to Rewrite Animal DNA

> From my laymans POV, DNA is just a shit ton of variables in a very complex code that interact with each other. No single point just does a single thing. They all interact with each other. No different than changing a variable in one piece of code and having it create a bug in another that was previously working.

Drew Endy did a lecture this a while ago. It's from one of the chaos computer club seminars.

https://vimeo.com/18201463

macoovacanyon Ask HN: What things have richly rewarded the time invested in mastering them?

Samba de Gafieira is like Argentine Tango, but happy.

macoovacanyon SICP Distilled – An Idiosyncratic Tour of SICP in Clojure

The following is a review by some guy:

https://www.amazon.com/review/R403HR4VL71K8

macoovacanyon Emirates Planes Could Be Going Windowless

Not as much as you'd expect. It's easier and cheaper to get a design with windows (and their supporting structure), and not cut out the holes for the windows in the skin. The resulting structure is going to be only marginally lighter, but also much more fatigue resistant. The savings would show up in the changed inspection intervals.

macoovacanyon Letting neural networks be weird

Would TVD help? https://en.wikipedia.org/wiki/Total_variation_diminishing

macoovacanyon Measuring Article Quality

One of my projects is to create a wiki like site for revenue generation, specifically aimed at technical professions such as architects / engineers / tax accountants etc.

One of the problems considered was how to rate the article content, so I have looked at the various strategies (star ratings seem worse than like/dislike, which seem worse than like only).

My thoughts was to layer a tag taxonomy over each article so that the authority of the author could be determined based on topic, an issue raised at

http://drvidy.wordpress.com/2008/02/18/measuring-article-qua...

I have thought about outsourcing the article generation to the usual places, but I am concerned about creating low quality "content farm".