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vgr's profile
Venkatesh Rao
Venkatesh Rao
Venkatesh Rao
@vgr

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Venkatesh Rao

@vgr

Conversational account. For work follow @ribbonfarm, @breaking_smart, @artofgig. Tweets are 90% vacuous views, apathetically held. Mediocritopian. IKEA builder.

Los Angeles, CA
venkateshrao.com
Joined August 2007

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    1. Venkatesh Rao‏ @vgr Sep 20
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      What’s an example of a “crucial detail” from your line of work that outsiders might notice but wouldn’t consider significant unless an insider pointed out how/why it was crucial?

      54 replies 10 retweets 137 likes
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      Venkatesh Rao‏ @vgr Sep 20
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      Example: most bicycle front fork designs are curved so steering column axis intersects point of wheel contact, improving stability. It’s not aesthetics. Example: Overhead power lines for electric locomotives are zigzagged to even out contact wear on the pantograph

      11:52 AM - 20 Sep 2020
      • 1 Retweet
      • 58 Likes
      • Joachim Schipper Dallas 20X6 💊📼 River Y Luca Dellanna an end Samar Gupta Rahul Ramchandani deeps
      6 replies 1 retweet 58 likes
        1. New conversation
        2. Alex Hardy  🦊 🦔‏ @CantHardyWait Sep 20
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          Replying to @vgr

          Web app performance can be impacted by a number of totally independent & unrelated causes. Issues with 1. Your browser permissons 2. Your network connectivity 3. App’s hosting service (AWS) 4. App’s DNS (Cloudflare) 5. A bug in the actual app code Ppl wildly conflate the above

          1 reply 0 retweets 2 likes
        3. Alex Hardy  🦊 🦔‏ @CantHardyWait Sep 20
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          Replying to @CantHardyWait @vgr

          Didn’t even mention -issues w your hardware -issues w your OS -too much load on the app degrading performance (diff than a true “bug”)

          0 replies 0 retweets 2 likes
        4. End of conversation
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        2. Michael Chapiro‏ @mchapiro Sep 20
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          Replying to @vgr

          There was an electric bike monthly rental startup that didn't realize this and had the forks on backwards (with people using them), and they didn't notice until I pointed it out. Very twitchy.

          1 reply 0 retweets 2 likes
        3. Venkatesh Rao‏ @vgr Sep 20
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          Replying to @mchapiro

          Lol

          0 replies 0 retweets 1 like
        4. End of conversation
        1. Nick Barnes‏ @nickbarnes Sep 20
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          Replying to @vgr

          Not so. Almost all bicycles have positive “trail”. You’re right that it’s important for stability though, and it does make your point. https://en.m.wikipedia.org/wiki/Bicycle_and_motorcycle_geometry …

          0 replies 0 retweets 1 like
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        2. brennan‏ @letkma Sep 20
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          Replying to @vgr

          basically everything around you has a fillet or a chamfer for a very specific reason involving what the material is and how it's produced - most commonly plastics are fillets because they are inverse of injection molds, which are carved out with round milling bit radiipic.twitter.com/ts0xenAOTw

          1 reply 1 retweet 18 likes
        3. brennan‏ @letkma Sep 20
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          Replying to @letkma @vgr

          on the subject of fillets, airplane windows are round because any sharp corner (in anything, really) is a high stress / weak spot for cracks to start, and anything we can do to design smoother edge transitions for forces makes the part strongerpic.twitter.com/JJPeEmwhAJ

          0 replies 4 retweets 33 likes
        4. End of conversation
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        2. Basil Marte‏ @BasilMarte Sep 20
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          Replying to @vgr

          The first example is partly incorrect. The curve in the fork has a twofold effect: the point of contact is *behind* the steering axis, thus forward motion pulls the wheel straight; and the centre of mass is ahead/above, thus leaning pulls the wheel into the curve.

          1 reply 0 retweets 4 likes
        3. Lev Esch‏ @Lev_Esch Sep 20
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          Replying to @BasilMarte @vgr

          Your first fold is completely correct, however the second fold is a more complex relationship between rake and head tube angle which mainly dictates how much counter steer is required to shift the center of mass in the direction of the turn to initiate the lean.

          0 replies 0 retweets 0 likes
        4. End of conversation
        1. emperor of yugoslavia‏ @scottisheggy Sep 20
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          Replying to @vgr

          The monuments shown as “found” on a survey map define property more so than the deed dimensions. Explaining this to the client/title officer/lawyer isn’t always the easiest, because 50’ isn’t always 50’ when it’s physically related to the symbols on the map.

          0 replies 0 retweets 0 likes
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