Big Ideas: August 21, 2019

In this edition: Does our internal monologue “speak” in words or is it much more complicated than that? Plus, mathematicians and neuroscientists create the first anatomically accurate model that explains how vision is possible. Meet the two Japanese crystal growers who supply hundreds of laboratories with a prized gem.

Big Ideas: August 21, 2019

Photo: ichef.bbci.co.uk