pehtis

Karma: 231
Created: 11 years ago

Recent Submissions

1. ▲ Pompeii, new light on the secrets of Roman concrete [video] (youtube.com) 2 points · 1 year ago · 0 comments
2. ▲ Carl Zeiss Crafts Optics for a $150M EUV Machine (youtube.com) 2 points · 2 years ago · 0 comments
3. ▲ Moxie: “I've decided it's a good time to replace myself as the CEO of Signal” (twitter.com) 43 points · 3 years ago · 4 comments

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