Marble Run DIY Waterwheel Toy
Stylish Rokr Wooden Model Building Block Kits Assembly Toy
What it does
Marble Run DIY Waterwheel Toy Stylish Rokr 4 Kinds Wooden Model Building Block Kits Assembly Toy Most Popular Gift for Children and Adult Birthday Present
Does a similar job
all alternatives →- IBI built a Guitar Hero robot [video]2021 · youtube.com · ▲328
- RMRoons – Mechanical Computer Kit2025 · whomtech.com · ▲203
I built a mechanical computer kit: https://whomtech.com/show-hn tl;dr: it's a cellular automaton on a "loom" of alternating bars, using contoured tiles to guide marbles through logic gates. It's not just "Turing complete, job done"; I've tried to make it actually practical. Devices are compact, e.g. you can fit a binary adder into a 3cm square. It took me nearly two years and dozens of different approaches. There's a sequence of interactive tutorials to try out, demo videos, and a janky simulator. I've also sent out a few prototype kits and have some more ready to go. Please…
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I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
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Source: Product Hunt launch ↗
Launched alongside, May 2021
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