I Built a Mechanical Calculator [video](youtube.com)81 points by lispybanana 1 year ago | 21 comments
Building a robot dog and uploading every second of it to YouTube (Part 1) [video](youtube.com)18 points by geepytee 2 years ago | 10 comments
1981 Sony Trinitron KV-3000R: The Most Luxurious Trinitron [video](youtube.com)85 points by ksec 1 year ago | 68 comments
Making PyPy's GC and JIT produce a sound [video](youtube.com)79 points by luu 2 years ago | 19 comments
He Built Apple's 1980s iPad Concept [video](youtube.com)72 points by dragonbonheur 1 year ago | 16 comments
The 44 Year Old Computer Magazine That Changed Everything [video](youtube.com)6 points by xkriva11 1 year ago | 5 comments
![Screenshot of youtube.com: I Built a Mechanical Calculator [video]](https://hn.urlbox.com/shots/renders/2025/3/13/7fe297ed-e663-4b1c-9498-1952422b41d3.jpg)
![Screenshot of youtube.com: Building a keyboard for a 1985 Casio FX-451 calculator [video]](https://hn.urlbox.com/shots/renders/2025/1/21/983f9b8a-8ddc-4625-a4cf-e73298b2be35.jpg)
![Screenshot of youtube.com: Building a robot dog and uploading every second of it to YouTube (Part 1) [video]](https://hn.urlbox.com/shots/renders/2024/9/11/aa1b6b6c-93a9-46a0-b1f3-cdf8bc361f8a.jpg)
![Screenshot of youtube.com: 1981 Sony Trinitron KV-3000R: The Most Luxurious Trinitron [video]](https://hn.urlbox.com/shots/renders/2025/8/21/6e67dac7-ace4-4017-8da7-0de5c7abc52c.jpg)
![Screenshot of youtube.com: Making PyPy's GC and JIT produce a sound [video]](https://hn.urlbox.com/shots/renders/2024/8/22/47c3e6fa-2b21-4cc1-ade5-2d86085a4004.jpg)
![Screenshot of youtube.com: He Built Apple's 1980s iPad Concept [video]](https://hn.urlbox.com/shots/renders/2024/12/9/003a23e2-17d8-44c9-92c4-1d35feb5aa6a.jpg)
![Screenshot of youtube.com: The 44 Year Old Computer Magazine That Changed Everything [video]](https://hn.urlbox.com/shots/renders/2025/5/25/f85641f8-8be0-42ac-8c7d-a1f5c69a73c1.jpg)