Gravitational Waves
In Our Time17 Mai 2007

Gravitational Waves

Melvyn Bragg and guests discuss mysterious phenomena called Gravitational Waves in contemporary physics. The rather un-poetically named star SN 2006gy is roughly 150 times the size of our sun. Last week it went supernova, creating the brightest stellar explosion ever recorded. But among the vast swathes of dust, gas and visible matter ejected into space, perhaps the most significant consequences were invisible – emanating out from the star like the ripples from a pebble thrown into a pond. They are called Gravitational Waves, predicted by Einstein and much discussed since, their existence has never actually been proved but now scientists may be on the verge of measuring them directly. To do so would give us a whole new way of seeing the cosmos. But what are gravitational waves, why are scientists trying to measure them and, if they succeed, what would a gravitational picture of the universe look like?With Jim Al-Khalili, Professor of Physics at the University of Surrey; Carolin Crawford, Royal Society Research Fellow at the Institute of Astronomy, Cambridge; Sheila Rowan, Professor in Experimental Physics in the Department of Physics and Astronomy at the University of Glasgow

Episoder(1083)

Margaret Beaufort

Margaret Beaufort

Misha Glenny and guests discuss the woman who, as a child bride, became mother to the boy who would eventually become the first king in the Tudor dynasty. Lady Margaret Beaufort (c1443-1509) was twelv...

2 Apr 54min

The Columbian Exchange

The Columbian Exchange

Misha Glenny and guests discuss the exchange of cultures and biology across the Atlantic and Pacific after 1492. That was when Columbus reached the Bahamas, a time when Europe had no potatoes, tomatoe...

26 Mar 52min

John Keats

John Keats

Misha Glenny and guests discuss the short life and lasting works of Keats (1795-1821), who in one year wrote some of the most loved poems in English. Among these are Ode to a Nightingale, Ode on a Gre...

19 Mar 48min

The Code of Hammurabi

The Code of Hammurabi

Misha Glenny and guests discuss the laws that Hammurabi (c1810 - c1750 BC), King of Babylon, had carved into a black basalt pillar in present day Iraq and which, since its rediscovery in 1901 in prese...

12 Mar 49min

Henry IV Part 1

Henry IV Part 1

Misha Glenny and guests discuss one of the most successful of Shakespeare's plays in his own time. Written with no Part 2 in mind as 'Henry the Fourth', the play explores ideas about who can be a legi...

5 Mar 51min

The Roman Arena

The Roman Arena

Misha Glenny and guests discuss the countless venues across the Roman Empire which for over five hundred years drew the biggest crowds both in the Republic and under the Emperors. The shows there deli...

26 Feb 50min

The Mariana Trench

The Mariana Trench

Misha Glenny and guests discuss one of the wonders of the natural world. In 1875 in the western Pacific, the crew of HMS Challenger discovered the Mariana Trench which turned out to be deeper than Ev...

19 Feb 58min

On Liberty

On Liberty

Journalist, author and historian Misha Glenny presents his first edition of In Our Time, succeeding Melvyn Bragg who retired from this role last summer. Misha and his guests discuss the landmark work ...

12 Feb 49min

Populært innen Historie

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