HelloBeautiful Karma 56 Created 14 years ago Recent Submissions 1. ▲ Challenge HN: Can you decrypt these messages? [pdf] (nsa.gov) 30 points · 14 years ago · 8 comments 2. ▲ OLED microdisplay glasses (ipms.fraunhofer.de) 2 points · 14 years ago · 0 comments All submissions on HN · View profile on HN