The earth as a planet - Carl Sagan's 1977 Christmas Lectures 1/6
Why it's on BrighterTube
Intro · From a channel a BrighterTube curator approved in full · 80% confidenceFrom a channel Lumen includes in full: The Royal Institution, home of the Christmas Lectures, posts full public lectures and demonstrations by working scientists on physics, chemistry, biology, maths and technology, with the speakers' own audience Q&A sessions.
What you'll learn
A 60-minute video from The Royal Institution's catalogue; the title names its topic.
Video by The Royal Institution, played through YouTube's embedded player.