Participants (137): United Kingdom
Ian Poffley, "Starburst"
Harwell, Oxfordshire, United Kingdom
Harwell, Oxfordshire, United Kingdom

"I found the subject interesting as it represents a splitting atom. It is found on the site of the old UKAEA Harwell."
"It was taken on a homemade pinhole camera The Poffley Mk2
It was a two minute exposure, developed in Coffee, vitamin C and sodium carbonate."