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A rainy day on King's Parade, with a man walking under an umbrella

Cambridge Easter egg

The Corpus Clock and its Chronophage, Cambridge

A golden clock with a creature eating time.

The story

On the corner of Trumpington Street and Bene't Street, a golden disc fills a window of Corpus Christi College. This is the Corpus Clock.

Stephen Hawking unveiled it in 2008. It was designed by John C Taylor, an inventor and former Corpus student, as a tribute to the clockmaker John Harrison.

On top crawls the Chronophage, which means time eater. Its jaws open and close as it swallows each passing minute.

There are no hands. Blue lights show the time, and the clock speeds up, slows down and sometimes stops. It's only exactly right once every five minutes.

Look out for

The gold disc in the window at the corner of Trumpington Street and Bene't Street.

Questions

Who unveiled the Corpus Clock?
Stephen Hawking unveiled it in September 2008.
Is the Corpus Clock accurate?
Only once every five minutes. The rest of the time it runs fast or slow on purpose, as a reminder that time is never quite in our control.

Where to find it

Taylor Library, Corpus Christi College, corner of Trumpington Street and Bene't Street, Cambridge

Open in Google Maps

Free to see from the street, at any time.

Good to know

Stand on the opposite corner of Bene't Street to see the whole clock. The Eagle and St Bene't's Church are a few steps away, so see all three together.

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