Gresham College provides outstanding educational talks and videos for the public free of charge. There are over 2,500 videos available on our website. Your support will help us to encourage people's love of learning for many years to come.
In 1615 Katharina Kepler, illiterate mother of the astronomer Johannes Kepler, was accused of being a witch. At that time in Germany, there was a witch ‘craze’. Over half of the c.50,000 executions in Europe for witchcraft between 1500 and 1700 took place in Germany.
When black holes merge, the world shakes. Such quakes in space-time are now detectable and indeed the detection of such gravitational waves from cosmic coalescences comprises an entirely new type of astronomy that is completely independent of light itself.
Lord Richard Harries has selected 30 images to convey the essential truths of the Christian faith, some ancient and some modern. Drawn from both the West and the East, a few are well-known masterpieces and others will be unfamiliar.
Space today is terrifyingly silent. But it wasn’t always thus: the early universe was filled with a hot plasma in which sound waves could travel. The cosmos was quivering with the aftershocks of the Big Bang.
The criminalisation of religious speech before the ordinary courts in England began in 1676. Although the law on blasphemy was finally abolished in 2008, many of the troubling aspects of the old law remain in the form of the offence of incitement to religious hatred.
When England’s Reformation began, only a small band of idealists – or fanatics – truly wanted a Protestant England. Nevertheless, within a single lifetime, they achieved it.
Highly energetic particles from outer space travelling at the speed of light, known as cosmic rays, originate from the sites of extreme particle acceleration in the Universe.
The English Reformation – unlike many of the other Reformations convulsing sixteenth-century Europe – was at heart more about politics and law than about religion.
When light is dispersed into its constituent colours, it can become possible to discern rich dynamical information about an evolving system in space, for example cosmic explosions, collisions or accelerations.