WeChat ID
aaronpk_tv
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Portland, Oregon • Mon, December 1, 2014 6:59pm -
Ride
1.10miDistance5:35Duration11.8mphAvg SpeedStartEnd
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Ride
2.14miDistance12:58Duration9.9mphAvg SpeedStartEnd
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The Most Officialest SkiFree Home Page (ski.ihoc.net)
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The Saddest Thing I Know about the Integers (blogs.scientificamerican.com)
When we tune an instrument, we would like for all our octaves and fifths to be perfect. One way to tune an instrument would be to start with a pitch and start working out the fifths above and below it it. We start with some frequency that we call C. Then 3/2 times that frequency is G, 9/4 times that frequency is D (an octave and a step above our original C), and so on. If you learned about the “circle of fifths” at some point in your musical life, then you know that if we keep going up by fifths, we’ll eventually land back on something we’d like to call C. It takes a total of 12 steps, and so if we keep all our fifths perfect, the frequency of the C we get at the end is 312/212, or 531441/4096, times the frequency of the C we had at the beginning. You might notice that 531441/4096 is not an integer, much less a power of 2, so our ears would not perceive the C at the end as being in tune with the C at the beginning. (531441/4096 is about 130, which is 2 more than a power of 2, so we would hear the C at the top as being sharp.) And it’s not a problem with the assumption that it takes 12 fifths to get from C to shining C. We can never get perfect octaves from a stack of fifths because no power of 3/2 will ever give us a power of 2.
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Suw
https://twitter.com/Suw
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Dec 1
@kevinmarks Think of conceptual difference between page & post in WP and that’s what I’m thinking. But good forum is more important.
@Suw @kevinmarks In my experience, the conceptual difference in WP between posts and pages is that pages aren't dated and don't show up in time-based lists. -
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2.21miDistance10:56Duration12.1mphAvg SpeedStartEnd
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AsleepAwake8h 07mSlept34mAwake for
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Vegan Archives - Budget Bytes (www.budgetbytes.com)
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0.71miDistance5:19Duration8.0mphAvg SpeedStartEnd
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Pannier recovery ride
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8.21miDistance56:13Duration8.8mphAvg SpeedStartEnd
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Just made a sign-up form for https://webmention.io so it's open for signups now!
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An interesting experiment of generating Vouch URLs based on Hashcash proof-of-work. I'm posting this note so that http://hash-for-vouch.herokuapp.com can be used as a Vouch URL when sending webmentions to my site.
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AsleepAwake7h 58mSlept40mAwake for
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2.90miDistance52:51Duration3.3mphAvg SpeedStartEnd
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3.63miDistance23:54Duration9.1mphAvg SpeedStartEnd
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Stuart Langridge
https://twitter.com/sil
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Nov 29
What about hashcash for webmention spam (not Vouch)? Pass time_t & nonce, where sha256(target+time+nonce).startswith("000000") /cc @aaronpk
@sil There's been some discussion about that on the webmention page: http://indiewebcamp.com/Webmention#proof-of-work_addition_to_webmention_to_help_avoid_spam -
Enabling Webmentions (www.kryogenix.org)
So, 12 years ago, I invented Pingback. Sorry. Pingback uses XMLRPC because that was the cool thing at the time and because I was young and foolish and had a peanut for a brain. Ian Hickson took my vague spec and kicked it in the arse to make it a proper spec, and it got adopted really quickly. Back then, when the world was young, everything got adopted really quickly; there was so much new ground to be broken that coming up with a reasonable way to do something (permalinks, RSS autodiscovery, pingbacks) meant that it got picked up by everybody.
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