![](http://www.alamy.com/thumbs/6/04165404-477F-4A8E-B9B5-2424330A3093/BC59DJ.jpg)
Particle physicist Professor Frank Close pictured on stage talking about anti matter at Hay Festival 2009
Size: 3322px × 5100px
Location: Hay-on-Wye, Powys, Wales, Cymru, UK
Photo credit: © Jeff Morgan 03 / Alamy / Afripics
License: Licensed
Model Released: No
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