Jyaif Karma 2,624 Created 14 years ago Recent Submissions 1. ▲ Ball bearing as a clock pendulum [video] (youtube.com) 1 point · 2 months ago · 0 comments 2. ▲ Digital Iris [video] (youtube.com) 4 points · 2 months ago · 1 comment All submissions on HN · View profile on HN