For a second video, this is amazing. It also took me to their first video which ... | Hacker News

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simonjgreen 87 days ago | parent | context | favorite | on: I Built a Mechanical Calculator [video]

For a second video, this is amazing. It also took me to their first video which is a mechanical hand, also out of wood https://youtu.be/gxT8TfI5DaE

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