In Our Time

BBC Radio 4

Society & Culture, History

Chart Positions

History 12
Society & Culture 68

Melvyn Bragg and guests discuss the history of ideas


IOT: The Microscope 28 Nov 13

November 28th, 2013

Episode 335 of 552 episodes

The microscope has revolutionised our knowledge of the world and the organisms that inhabit it. Invented in the seventeenth century, the microscope became an essential component of scientific enquiry by the nineteenth century, but in the 1930s a German physicist, Ernst Ruska, discovered that by using a beam of electrons he could view structures much tinier than was possible using visible light. Today light and electron microscopy are among the most powerful tools at the disposal of modern science, and new techniques are still being developed.

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