From sundials to caesium - a brief (140 character) history of time

We had some fascinating speakers at our Clocking Off Late event last week talking about space, time and our place in the universe. We were live tweeting along but for those who missed it we've collected some of the best bits below.

First up Louise Devoy, Curator of Royal Observatory Greenwich, shared some of the beautiful examples of sundials within our collection.

You can see many more examples of the beautiful sundials within our collection by visiting Collections Online.

Elizabeth English from the National Physical Laboratory then jumped forward in time and brought us up to speed with the latest developments in timekeeping.

For more info on timekeeping and the National Physical Laboratory see their website.