This acts as a network-based backup and synchronisation system for Apple's smartphones and tablets.

BBC: Fifth iPhone expected to be launched by Apple

The aim was to recreate the voice without the viewer being aware of any synchronisation - a bit like magic or an illusion.

BBC: Magazine

"The point is we can find a compromise, there are possibilities of leaving the time open for synchronisation in the future, " she said.

BBC: Changes to the world's time scale debated

It has e-mail, internet and synchronisation with your PC.

BBC: Japan signals mobile future

One thing that has kept inflation modest in America is the availability of ample spare capacity overseas, because the economic cycles of the big economies have until now moved out of synchronisation.

ECONOMIST: Like all good things, bull markets eventually come to an end

"This is a work of synchronisation, " he said.

BBC: Particle beams injected into LHC

They stole information from a research version of a system made by ID Quantique, a Swiss firm that is trying to commercialise quantum cryptography, by taking advantage of synchronisation signals that pass between Alice and Bob.

ECONOMIST: Secure cryptography is only as safe as its weakest link

This synchronisation is hard to explain.

ECONOMIST: All fall down