Episode details
Available for over a year
How to measure things at extreme ends of the size scale. Astronomer Margaret Penston explains how large things in our galaxy are measured. Meanwhile, Neil Brown discusses the microscopic.
Programme WebsiteUse BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.
Available for over a year
How to measure things at extreme ends of the size scale. Astronomer Margaret Penston explains how large things in our galaxy are measured. Meanwhile, Neil Brown discusses the microscopic.
Programme Website