Adam Hart-Davis will take us through ballooning history and the discovery of helium, with a sprinkling of Heath Robinson.
Adam is author of Very Heath Robinson: Stories of His Absurdly ingenious World.
Venue: Norman Lockyer Observatory, EX10 0NY
Price for entrance to the Norman Lockyer site: £8 for adults (Children free).
NB. Payment by CASH ONLY at the door. There is no separate charge for the activities on site.