Crash Course History of Science - Season 1 Episode 18

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

Discoveries that have revolutionised our understanding of what it means to be human, allowing us to live longer, better, smarter and stronger.

Dr Helen Czerski examines the world of sound waves.

Survival instructor Marc Mouret have 100 days to sharpen his body and mind to take on extraordinary challenges.

Join Derek Muller (Veritasium) as he looks into the weird, bizarre, and seemingly inexplicable images found on Google Earth to discover what on Earth...

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