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.
Mars has changed since it formed 4.6 billion years ago. When life started on Earth ~4 billion years ago, Mars was habitable too, with volcanism, a magnetic field, surface water and a thick atmosphere. Today, Mars is cold and dry, with a thin atmosphere and harsh surface.
Like James I, King William III was fundamentally unhappy with the stuffy formality of England’s vast crumbling royal estate. But unlike James, who virtually abandoned Edinburgh, William maintained a second court, and a parallel suite of royal houses, in the Netherlands.
This talk will consider how expectation plays a role in discovery and in scientific advance, and considers the challenges involved in assessing changes taking place on our own planet.
This lecture will present the endeavours of cosmologists and particle physicists, as they attempt to explain the fundamental nature of these mysterious dark components.
Nowhere in Europe have the wars of religion lasted longer than in Ireland. At the heart of this are two rival sets of memories of atrocities: above all, Protestants recall the massacres of the 1641 rebellion, and Catholics recall the massacres perpetrated by Oliver Cromwell in 1649.
For a decade after the execution of Charles I the Stuart courts were based in the Low Countries and France. Always short of money, but determined to maintain splendour and dignity, Charles II rented a series of mansions and used them as the headquarters of the exiled monarchy.
The lecture discusses their identities, motives and impact, and the forgotten fact that their failure ended British revolutionary fantasies for a century.