The surprising genius of sewing machines [video](youtube.com)

163 points by gumby 2 years ago | 54 comments

It was almost impossible to make the blue LED [video](youtube.com)

300 points by keepamovin 2 years ago | 156 comments

Towards a “PCB Drone” – Making a PCB Motor which reaches 30k RPM [video](youtube.com)

333 points by reaperman 3 years ago | 60 comments

YouTube video by Carl Bugeja showing his efforts to make his tiny PCB motor stronger and faster, reaching 30,000 RPM.

Veritasium: Light bulbs are linked to the invention of computer(youtube.com)

34 points by h1fra 3 years ago | 10 comments

Knot theory [video](youtube.com)

65 points by nyc111 3 years ago | 20 comments

I spent 3 years working on a coat hanger [video](youtube.com)

1169 points by anonymfus 2 years ago | 407 comments

YouTube video by Simone Giertz explaining why she spent three years designing and developing a coat hanger product.