According to this post:
NPL, the National Physical Laboratory, is having an open day on Wednesday 14th March from 14:00. Details are here:
The NPL campus is in Teddington (Kingston upon Thames) Google directions. 45 minutes from West London and Waterloo, and 1 hour 15 from the space.
Who's up for travelling by:
17:13 as per post:
- Tom Scott
Rail Ticket Offers? Groupsave? Railcard Holders? Meeting place?
From Turnham Green by way of Richmond:
According to http://journeyplanner.tfl.gov.uk it would take just under 2 hours from the LHS.
- TenYen. Very flexible with start time, pickup points etc.