This is a live demonstration from the 2008 Royal Institution Christmas Lectures illustrating the concept of photo reduction, by projecting the initials of a volunteer onto a grain of rice. This technique forms the basis for photolithography which is used to manufacture microprocessors. You can watch the 2008 Royal Institution Christmas Lectures in full at: http://research.microsoft.com/~cmbishop or by visiting the Royal Institution web site. There is a dedicated web site to accompany the 2008 Christmas Lectures, with ten interactive games as well as downloadable PDF instructions for experiments which can be conducted at home or at school: http://www.rigb.org/christmaslectures08