A Fireworks Baby Gender Reveal Goes Wrong

This is a video of a fireworks-based gender reveal in Philadelphia starring two parents who decided to set the fireworks on the absolute flimsiest thing they could...
July 18, 2018

A Four-Way Tetrahedral Rack Gearset That Works

This is a video of Youtuber Henry Segerman demonstrating the 'mathematical art' four-way tetrahedral rack gearset he designed and had 3-D printed by Shapeways (you can get...
June 29, 2018