Repeat: The retired physicist said his objective was to 'use X-rays to show the beautifulness of nature' Mr van't Riet creates a natural scene which he then X-rays; colour is added  later using a computer .
The retired physicist said his objective was to 'use X-rays to show the beautifulness of nature' Mr van't Riet creates a natural scene which he then X-rays; colour is added  later using a computer .