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MorlockP's profile
ⓘ Dogs don't have thumbs
ⓘ Dogs don't have thumbs
ⓘ Dogs don't have thumbs
@MorlockP

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ⓘ Dogs don't have thumbs

@MorlockP

Two-time Prometheus award-winning hard science fiction author. https://www.amazon.com/dp/B005JPPMS6  Learn how to homestead https://www.amazon.com/dp/B093BC3K1T 

Aristillus Crater, Luna
amazon.com/dp/B005JPPMS6
Joined June 2012

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    1. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      Just got a review of my books via DM > you get just about every single fact I know anything about wrong, from the very small things to the very big things, and I have to assume you get all the things I don't know much about wrong, too. This was presented as friendly feedback.

      9 replies 4 retweets 37 likes
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    2. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      2/ Oh, wait, it's more than one DM. I'm criticized for not understanding three phase power either. With helpful link to stackexchange post, explaining that I probably read it and misunderstood it. No, I didn't. For the record, three phase motors CAN run on 1 phase 220.

      3 replies 0 retweets 19 likes
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    3. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      3/ One typical type of three phase motor (the kind I've got on my milling machine) has a stator with three sets of electromagnets, and one rotor. The three electromagnets (or, more generally, 3n) are wired in banks to the three live lines, which are 120° out of phase. >>>pic.twitter.com/6ISBCztlz1

      1 reply 0 retweets 10 likes
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    4. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      4/ When the A magnets are energized they apply torque via electromagnetism to the rotor. Then the As are demagnetized and the Bs are magnetized and the rotor (a) keeps rotating because of inertia, and (b) is drawn towards the new energized poles. Then B demagnetized + C ...

      1 reply 0 retweets 7 likes
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    5. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      5/ This is why you can accidentally wire a motor backwards and have it rotate in reverse!

      1 reply 0 retweets 9 likes
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    6. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      6/ If you don't have 3-phase power but have 1 phase 220 V you can wire one leg to A and one to B and nothing to C. You then have to give the rotor an initial kick, either by hand or with a starter motor engaging with a rubber drive pulley, but once it's rotating it will >

      1 reply 0 retweets 10 likes
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    7. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      7/ Engage with the A electromagnets, then then B electromagnets. Timing is wrong bc the phases are 180° apart, not 120° apart, so - I THINK - the motor will run at 50% higher speed during this arc. Then it uses inertia to coast past the C electromagnets and back to the A set.

      2 replies 0 retweets 10 likes
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    8. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      ⓘ Dogs don't have thumbs Retweeted

      8/ Yeah, the fact that I'm getting criticized for having my characters use real-world hacks when the Approved Methods™ don't work is amusing. I did it to show the Aristillus expats as tinkerers with a can-do attitude and old school skills. https://twitter.com/PWilliamKitty/status/1210938691457372161 …

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    9. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      9/ What else? Ah, my DM friend also criticizes me for having Darcy use a nitrogen flush as a last-ditch approach to empty the water tanks on the Wookie. "This won't work; you need ulage rocket motors." First, I intentionally did not give the Wookie ulage motors to MAKE IT HARD

      1 reply 0 retweets 16 likes
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    10. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      10/ Second, the nitrogen system was present in the Wookie bc it was a converted oil tanker and I wanted to show for stylistic / plot reasons that a lot of hardware was cobbled together / repurposed in a crapsack world by tinkerers with a can-do attitude.

      1 reply 0 retweets 15 likes
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      ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

      11/ Third, I wanted a hack solution that would solve the problem, but create a new one - less than total purging of the water tanks, which then requires the SECOND hack, which was ditching on-deck cargo.

      7:05 AM - 28 Dec 2019
      • 9 Likes
      • Nebulous Price Hikes Frank Vance Àdhamh Cynebeald nzc Ket zywiec absurdistfool
      3 replies 0 retweets 9 likes
        1. New conversation
        2. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

          12/ Fourth, I am pretty sure that pressurizing a tank from above - even without a membrane to separate liquid from gas pressure, as is done in some cases, WOULD scavenge a noticeable amount of liquid. based on (a) my knowledge of the tuned exhaust systems of 2 stroke engines

          1 reply 0 retweets 9 likes
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        3. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

          13/ (b) conversations on the topic with my friend Geo (PhD, MIT) re a variety of topics including 2 stroke engines, fluidized beds, and his father (also a PhD in MechE) on using engineered turbulence to adjust dispersal of atomized fluids in internal combustion cylinders

          2 replies 0 retweets 10 likes
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        4. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

          14/ Now, it could be that I'm wrong about scavenging liquid from a tank with pressurized gas in 0 g. I did the best research I could. ...but given that my interlocutor told me point-blank that you can't run a 3-phase motor on 1 phase WHEN I'VE SEEN IT DONE, I'm not convinced.

          2 replies 1 retweet 13 likes
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        5. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

          15/ To quote him back at him "you get just about every single fact I know anything about wrong, from the very small things to the very big things, and I have to assume you get all the things I don't know much about wrong, too."

          3 replies 0 retweets 16 likes
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        6. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

          ⓘ Dogs don't have thumbs Retweeted

          16/ A third person tags in to say "that thing your interlocutor assures you is impossible, and thus you're wrong about everything? I've seen it with my own eyes". https://twitter.com/libertylineman/status/1210944219138969600 …

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        7. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

          ⓘ Dogs don't have thumbs Retweeted

          17/ Well, to be fair, I do try to write "hard" SF. The only zero-reason-to-think-it's-possible tech I intend to have is the AG drive. https://twitter.com/jabocka/status/1210944013441884165 …

          ⓘ Dogs don't have thumbs added,

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        8. ⓘ Dogs don't have thumbs‏ @MorlockP 28 Dec 2019

          18/ For those curious on scavenging cylinders or tanks, here's one place to start https://en.wikipedia.org/wiki/Scavenging_(engine) …

          0 replies 0 retweets 1 like
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        9. End of conversation
        1. Mr. Crow‏ @Crowesq 28 Dec 2019
          Replying to @MorlockP

          Harlan Ellison shared a criticism he got from a know-it-all re a story about a computer coming to life & eating the user. Critic complained about 'amber' glow from screen, which should have been 'green'. Harlan said "I HAD an amber monitor. Also THE COMPUTER ATE A GUY!"

          0 replies 0 retweets 1 like
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        2. Jason Steiner‏ @ernunnos 28 Dec 2019
          Replying to @MorlockP

          Me: It sounds like The African Queen! In Space! Also me: Uplifted dogs still sounds furry though.

          1 reply 0 retweets 1 like
        3. Frank Lloyd Righteous, Ph.D Misanthropologist‏ @BostonDelendEst 28 Dec 2019
          Replying to @ernunnos @MorlockP

          You'd enjoy it, I think.

          0 replies 0 retweets 0 likes
        4. End of conversation

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