![](http://www.alamy.com/thumbs/6/BD67C2ED-3ABF-4E16-9A0A-37316A685D9D/BC59EF.jpg)
Particle physicist Professor Frank Close pictured on stage talking about anti matter at Hay Festival 2009
Size: 5100px × 3323px
Location: Hay-on-Wye, Powys, Wales, Cymru, UK
Photo credit: © Jeff Morgan 16 / Alamy / Afripics
License: Licensed
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