kentiko Karma 268 Created 9 years ago Recent Submissions 1. ▲ Himawari solar natural lighting system using lenses and quartz optic fibers (himawarisolar.com) 1 point · 2 years ago · 0 comments 2. ▲ I Am a Developer, Sorry 8 points · 4 years ago · 20 comments All submissions on HN · View profile on HN