Crash Course History of Science - Season 1 Episode 18

Hannah Fry takes a spectacular look at the science of size by imagining a parallel world in which everything is made bigger or smaller.

Series of investigative science documentaries.

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

TV's most-watched history series brings to life the compelling stories from our past that inform our understanding of the world today.

Philippe Cousteau Jr., grandson of the legendary Jacques Cousteau, explores the most spectacular places - on the earth, inside the earth, and above...