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Science in the 20th century: Melvyn Bragg examines how perceptions of science have changed in the 20th century. by In Our Time: Science28 min listen
ratings:
Length:
42 minutes
Released:
Apr 30, 2009
Format:
Podcast episode
Description
Melvyn Bragg and guests Frank Close, Jocelyn Bell Burnell and Ruth Gregory discuss the Vacuum of Space. The idea that there is a nothingness at the heart of nature has exercised philosophers and scientists for millennia, from Thales's belief that all matter was water to Newton's concept of the Ether and Einstein's idea of Space-Time. Recently, physicists have realised that the vacuum is not as empty as we thought and that the various vacuums of nature vibrate with forces and energies, waves and particles and the mysterious phenomena of the Higgs field and dark energy.
Released:
Apr 30, 2009
Format:
Podcast episode