Nan Ma
1.4K posts
I made Lights Out 4D: the classic puzzle game, but on 4D polytopes. Click vertices to toggle rings. Turn them all off to win. Three shapes: 16-cell, 24-cell, 600-cell. Works on phone & desktop. nan.ma/lights_out_4d/
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@quitchat @SFBARTalert Now they are saying the train will go all the way to Antioch. It seems like the problem has been fixed.
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@quitchat @SFBARTalert When I first got into the train, they said the train will stop at Daly City. But not it’s really going to Glen Park.
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BART service has stopped between West Oakland and 24th St. Mission due to a network engineering problem . Please seek alternate means of transportation.
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Links to the previous posts for these two tiles:
x.com/mananself/stat…
x.com/mananself/stat…
Nan Ma@mananself
My latest coordinated-motion model is flat and based on a hexagonal tiling, with all the identical pieces moving in and out simultaneously. The mechanism is the same as in the classic Magic Disc and my Blast-hedra puzzles. I can make as many pieces as I like this time.
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@satnam6502 What’s the trick to enable highway? I just searched for a Waymo ride from Palo Alto Caltrain station to the Greens restaurant. It doesn’t take highway. Two and half hours and $163. Is there any switch to turn on highway ?
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A flawless freeway Waymo ride from Palo Alto to Green’s restaurant at the Marina in San Francisco.
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@R_Denet I shared this stl publicly here: github.com/nanma80/nanma8… thanks
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@mananself Could you sell the stl files of that one?
x.com/mananself/stat…
and i'll print it myself.
Nan Ma@mananself
Recently I designed and 3d printed a coordinated-motion model. There are 4 identical pieces. When we assemble them, all pieces move simultaneously towards the center to form an octahedron. Then I spin it to disassemble.
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@mananself Splinter 12 was still available so i ordered that one. Which shape is it?
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@UntilPersona Dreamcast 4. It would’ve been number 4 if Sega stayed in the race.
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SEGA has teased something to be revealed at The Game Awards:
“Stay tuned, you won’t want to miss it 👀”
What do you think SEGA will show tomorrow?
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@paularambles Imagine Waymo customer service requiring baby to be in a car seat during the ride.
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Exciting expansion! @Waymo now serves the whole SF Bay Area Peninsula from SF to San Jose and is taking riders on freeways.
waymo.com/blog/2025/11/t…
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@txyyss 多谢！前一阵子的puzzles 我确实和一个人合作，他3D打印出来来卖: nothingyetdesigns.com/collections/na… 我不愿意申请专利，不仅麻烦而且我也不可能真有闲工夫去告别人
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Two puzzles I'm building:
🔴 12 pieces slide into a cube with coordinated motions in 2D abstract space.
🔵 30 pieces form a dodecahedron with 4D motions.
Inspired by John Kostick's designs. john-kostick.github.io/vzome-sharing/…
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