A series of 4 talks on 10, 17, 24 June and 1 July at 19:30 BST, 18:30 UTC on Keeping time.

REMS (The Retired Members Section of the L&SE Branch) organise two At Homes each year which provide an opportunity for old friends to keep in touch. The next At Home will be exactly that i.e. literally at home via online Zoom meetings. On this occasion, we have arranged for a series of four talks on the subject of keeping time - all spread over four Thursdays to accommodate members’ domestic arrangements.

The first of the four talks will be given by David Rooney who is a writer and former museum Curator of Time, ROG. In his illustrated and wide-ranging talk, David will explore how, since the earliest civilizations, people of all cultures have made and used clocks.  From the city sundials of ancient Rome to the medieval water clocks of imperial China, a history of clocks is truly a history of civilization. Using examples of real timekeepers from across space and time, David will show how, time has been harnessed, politicized and weaponised.

The second talk will be by Dr Hugh Hunt, a Reader in Engineering Dynamics and Vibration in the Department of Engineering at the University of Cambridge, and a Fellow of Trinity College.  He is also the Keeper of the Trinity College clock which is a 1910 Smith of Derby movement, accurate to 1 second a month without intervention.  The clock's time-keeping forms the subject of a current 4th Year Engineering project which he co-ordinates, Visit http://trin-hosts.trin.cam.ac.uk/clock/main.php. Rather than giving a conventional lecture, Dr Hunt will take us on a guided tour of the mechanisms of the clock. 

The third talk is by Professor Ivette Fuentes-Guridi at the School of Physics and Astronomy at the University of Southampton. Professor Guridi work considers fundamental quantum mechanics, quantum optics and astrophysics. She is interested in how atomic clocks, based on quantum theory, are subject to relativistic effects. 

The final talk in this series will be by Dr Leon Lobo, Head of the National Timing Centre (NTC) programme at the National Physical Laboratory (NPL), the UK's National Measurement Institute.   His talk will include his development of NPLTime®. NPL’s certified fibre-delivered time dissemination solution to the City of London for high frequency trading systems and regulatory compliance plus building resilience into the future dissemination of time.