The Microscope
In Our Time28 Nov 2013

The Microscope

Melvyn Bragg and his guests discuss the development of the microscope, an instrument which has revolutionised our knowledge of the world and the organisms that inhabit it. In the seventeenth century the pioneering work of two scientists, the Dutchman Antonie van Leeuwenhoek and Robert Hooke in England, revealed the teeming microscopic world that exists at scales beyond the capabilities of the naked eye.

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.

With:

Jim Bennett Visiting Keeper at the Science Museum in London

Sir Colin Humphreys Professor of Materials Science and Director of Research at the University of Cambridge

Michelle Peckham Professor of Cell Biology at the University of Leeds

Producer: Thomas Morris.

Episoder(1081)

Cyrus the Great

Cyrus the Great

Melvyn Bragg and guests explore the history and reputation of the Persian ruler Cyrus the Great. Cyrus the Second of Persia as he was known then was born in the sixth century BCE in Persis which is no...

10 Apr 202550min

Pollination

Pollination

Since plants have to mate and produce offspring while rooted to the spot, they have to be pollinated – by wind, water, or animals – most commonly insects. They use a surprising array of tricks to attr...

3 Apr 202550min

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

Populært innen Historie

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