Learn more: http://www.khanacademy.org/video?v=YYEgq1bweN4
A framework for thinking about how many detectable civilizations are out there.
Channel: Education Channel
Related tags:
Learn more: http://www.khanacademy.org/video?v=YYEgq1bweN4
A framework for thinking about how many detectable civilizations are out there.
Channel: Education Channel
Related tags:
comments powered by Disqus |
HPTS - Area Progetti - Edu-Soft - JavaEdu - N.Saperi - Ass.Scuola.. - TS BCTV - VideoRes - TSODP - TRTWE | ||