Joe Ludwig

@joeludwig

Programmer at Valve, augmented and virtual reality enthusiast, recovering fighting robot builder, and terrible Rocksmith player. He/him.

Seattle, WA
programmerjoe.com
Joined August 2008
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  1. Retweeted
    Apr 13

    We at YIMBY Denver pride ourselves in having a message that appeals to everyone, but it's sometimes important to tailor the message to the audience. So, here’s a cheat sheet for how to speak our most important phrase in various dialects, a 🧵!

    19 replies . 241 retweets 990 likes
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  2. Apr 12

    Pro tip: When you totally seal a chamber and then try to fill it with water, the air is only going to compress so far before something stops working. Best case would have been "can't fill anymore" as the internal pressure hit the ~45PSI of the hose. This is what actually happened

    1 retweet 6 likes
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  3. Retweeted
    Apr 10

    Ah good, looks like Jer got to the “finding out” part thanks to Shelly

    A letter posted on a workplace: ATTENTION ALL SUBORDINATES: EFFECTIVE IMMEDIATELY, CONVERSING ABOUT WAGES (BOTH ON DUTY AND OFF DUTY) IS STRICTLY FORBIDDEN. This is considered proprietary information and as such, it is protected legally. If you ane overheard speaking (OR LISTENING TO!) a conversation in which wages are discussed, you will receive disciplinary action up to and including termination. As a reminder, Kentucky is an at-will state, meaning your employment can be terminated for any reason without legal percussion. Or NO REASON. Have any questions, ask Jer.
    The response letter. It has a frame of links to the NLRB around the edges. The printed text reads as following and other names have been added, hand written, with their varying wages: LETTER: Yo Jer-Bear: Seeing as you're a manager in the great illustrious word of Planet Fitness gym franchises, it may behoove you to become familiar with the laws pertaining to it. Sprinkling legalese and word-salad across an 8.5x11 paper you printed does not a legal doc make. Since research ain't your forte, I've included a link to the pertinent documents on the left, right, top, and bottom of this paper. Kinda hard to miss. Needless to say, you can't legally tell us not to discuss wages in the good ol' U.S. of A. We will continue to do so. Futhermore, for the sake of making this a little more streamlined, shall we? [list of names and pay rate follows, won’t all fit] The rest of your "subordinates" could not be reached, but they're welcome to post their wage above, Love. $10.50 an hour Shelly
    506 replies . 9,450 retweets 69,791 likes
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  4. Mar 30

    Hey , did you bring the hot dogs?

    Actual bucket of lava
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  5. Mar 27

    There are many more photos of the build in progress and more detail in the project thread on the Swamp Things discord:

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  6. Mar 27

    Algae likes it to be something like 80-90F (presumably depending on the species.) It goes dormant if it gets too cold and dies if it gets too hot. So both are things to avoid.

    1 reply .
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  7. Mar 27

    This build focused a lot on holding in heat because I hoped to put it out in the beginning of December when I would have a couple months of below freezing temps. That didn't happen, so I get to think about being too hot instead. :)

    2 replies .
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  8. Mar 27

    Argon is what double pane windows usually use. Krypton is about three times better and has a cooler name. I have no idea how to source either one, but when the time comes I'll sort it out.

    1 reply . 2 likes
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  9. Mar 27

    I may end up using a noble gas with a lower-than-air thermal conductivity instead of a vacuum. It won't insulate as well, but at one atmosphere of pressure it also won't be all that excited about getting out, and won't put much strain on the seams.

    1 reply .
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  10. Mar 27

    The grow tube has a double wall and, in theory, can have a vacuum between them for insulation. I don't know if the acrylic is up to the task of holding a vacuum. Or if my seams are. That's something I hope to test.

    1 reply .
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  11. Mar 27

    The tube on the top and the box are transparent so the sunshine can get to the algae. The tubes on the bottom are evacuated solar tubes that will soak up sunshine and heat up the water inside them. In theory, convection will circulate the hot water from the bottom with the top.

    1 reply . 3 likes
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  12. Mar 27

    This is how I spent my weekend. It is a prototype photobioreactor that I intend to use to run some algae growing experiments. Eventually I'd like to get this thing to be solar powered and automated so you put sunshine, growth medium, air, and water in, and get biomass out.

    1 reply . 2 retweets 25 likes
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  13. Retweeted
    Mar 26

    If Dr. Strange married Courtney Love, he could be Dr. Strange-Love.

    14 replies . 38 retweets 318 likes
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  14. Mar 21

    It's great that grocery stores have "solved" the disposable plastic bag problem by making the bags twice as thick and writing "re-usable" on them.

    1 reply . 2 likes
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  15. Mar 21

    Some of these I can understand being wrong about. But 1/3 of the country lives in NYC, a 1/3 lives in Texas, and 1/3 lives in California? That math doesn't really work out.

    People are really bad at estimating America's demographics
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    2 replies . 3 likes
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  16. Mar 19

    . I didn't know any of this. Thanks for sharing.

    1/20 🧵 I have been hearing more frequently the narrative that women's sport apparently exists as a 'protected category' so that women can win (because on this account without it no woman will ever win again) This is: a) *not* the reason why women's sport exists as a category,
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  17. Mar 15

    Spent some time today printing parts for the next round of algae-growing experiments. Going to assemble these tomorrow when my well-ventilated area (aka the outdoors) is also well lit. More details in the Discord:

    1 retweet 10 likes
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  18. Mar 15

    Hey , it could be worse.

    This Tweet is unavailable.
    1 reply . 3 likes
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  19. Mar 14

    Try it
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  20. Mar 13

    My Elden Ring experience: 1. Didn't jump either time because why would jumping off a cliff be a thing, and the first one was obviously someone trolling. 2. One-shot-killed by the first thing I met with no clue how to fight. 3. Guess this game isn't for me.

    First minute of Elden Ring, there’s a pit with a (player) message saying to jump. If you do, you die. Second minute of Elden Ring, there’s a pit with a (game) message saying to jump. If you don’t, you will miss the entire tutorial. Things learned upon starting a second run. :p
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    3 replies . 1 retweet 12 likes
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