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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.
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.
On 17 August 1982, the first commercial CD was released. Digital recording and editing have changed the face of music by making recordings easy to originate and share. But has this affected musical quality, and what are the financial and artistic consequences?
Cinema’s original canons were based on a small number of works most highly esteemed by archivists and historians. But access to the history of film has been dramatically expanded by digital media, as have debates between those arguing from different premises.
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.
Canons of taste and value in other media, such as literature, art and music, have been challenged in recent decades by proponents of sexual and ethnic equality.
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.
In 1930, the great physicist Wolfgang Pauli invented a new particle to save the principle of energy conservation in certain radioactive decays he was studying.
For nearly seventy years, what might be called ‘the canon’ of greatest films has been arbitrated by an international poll of critics delivering a ‘ten best’ list every decade, published in the BFI’s Sight & Sound.
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