13th-century Chinese rockets weren't landing on the moon either so both are simp... | Hacker News

Hacker News new | past | comments | ask | show | jobs | submit

login

Leszek 8 months ago | parent | context | favorite | on: Epitaph – Fermi Paradox Simulator

13th-century Chinese rockets weren't landing on the moon either so both are simplifications.

bluGill 8 months ago [–]

13 century Chinese rockets were useful weapons or war though.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact