Optics
In Our Time1 Mar 2007

Optics

Melvyn Bragg and guests discuss the history of optics. From telescopes to microscopes, from star-gazing to the intimacies of a magnified flea. As Galileo turned his telescope to the heavens in the early 1600s, Kepler began to formulate a theory of optics. The new and improving instruments went hand in hand with radical new ideas about how we see and what we see. Spectacles allowed scholars to study long into the evening (and into old age), while giant telescopes, up to 100 feet long, led to the discovery of planets and attempts to map the universe. The craze for optical trickery swept Europe with enthusiastic amateurs often providing valuable discoveries. But this new view of the world through a lens raised questions too – how much can you rely on the senses, on what you see? The further into space you can spy, the larger and more unmanageable the universe becomes. At the same time, the microscope was utterly transforming the world close at hand.So how did these developments inform ideas of knowledge? If new methods of scientific observation support an empirical approach, what does this mean for divine, innate reason?With Simon Schaffer, Professor in History and Philosophy of Science at the University of Cambridge; Jim Bennett, Director of the Museum of the History of Science and Fellow of Linacre College at the University of Oxford; Emily Winterburn, Curator of Astronomy at the National Maritime Museum

Episoder(1087)

Kali

Kali

Melvyn Bragg and guests discuss the Hindu goddess Kali, often depicted as dark blue, fierce, defiant, revelling in her power, and holding in her four or more arms a curved sword and a severed head wit...

27 Mar 202557min

Oliver Goldsmith

Oliver Goldsmith

Melvyn Bragg and guests discuss the renowned and versatile Irish writer Oliver Goldsmith (1728 - 1774). There is a memorial to him in Westminster Abbey’s Poet’s Corner written by Dr Johnson, celebrati...

20 Mar 202554min

Catherine of Aragon

Catherine of Aragon

Melvyn Bragg and guests discuss Catherine of Aragon (1485-1536), the youngest child of the newly dominant Spanish rulers Ferdinand and Isabella. When she was 3, her parents contracted her to marry Ar...

13 Mar 202552min

Sir John Soane

Sir John Soane

Melvyn Bragg and guests discuss the architect Sir John Soane (1753 -1837), the son of a bricklayer. He rose up the ranks of his profession as an architect to see many of his designs realised to great ...

6 Mar 202553min

Pope Joan

Pope Joan

Melvyn Bragg and guests discuss a story that circulated widely in the middle ages about a highly learned woman who lived in the ninth century, dressed as a man, travelled to Rome, and was elected Pope...

27 Feb 202546min

Socrates in Prison

Socrates in Prison

Melvyn Bragg and guests discuss Plato's Crito and Phaedo, his accounts of the last days of Socrates in prison in 399 BC as he waited to be executed by drinking hemlock. Both works show Socrates prepar...

20 Feb 202550min

The Battle of Valmy

The Battle of Valmy

Melvyn Bragg and guests discuss one of the most consequential battles of recent centuries. On 20th September 1792 at Valmy, 120 miles to the east of Paris, the army of the French Revolution faced Prus...

13 Feb 202547min

Slime Moulds

Slime Moulds

Melvyn Bragg and guests discuss slime mould, a basic organism that grows on logs, cowpats and compost heaps. Scientists have found difficult to categorise slime mould: in 1868, the biologist Thomas Hu...

30 Jan 202551min

Populært innen Historie

rss-dette-ma-aldri-skje-igjen
med-egne-oyne
historier-som-endret-norge
henrettelsespodden
rss-benadet
historier-som-endret-verden
rss-katastrofe
sektledere
rss-nadelose-nordmenn-gestapo
aftenposten-historie
rss-gamle-greier
rss-strid-de-norske-borgerkrigene
rss-frontkjemperne
rss-bisarr-historie
rss-historiske-romanser-svik-drap-og-kjarlighet
historiepodden-ww2
liberal-halvtime
historiepodden
rss-historiepodden-ww2
vare-historier