The scientific and human story behind the past, present and future of one of the most important ever developments in science. Subscribe for regular science videos: http://bit.ly/RiSubscRibe 100 years after it was first developed, crystallography is still a driving force of scientific discovery and innovation. Revealing the hidden structure and beauty of materials, it gives an insight into the invisible. This film from Diamond Light Source celebrates the work and lives of Sir William Henry Bragg and his son, Sir William Lawrence Bragg. Together, they established a new scientific discipline. A son with the theoretical understanding and father with the experimental technique to harness this knowledge. The technique emerged a century ago, but its power to reveal the minutiae of matter is as strong today as it was then. This film journeys through the key experiments and insights from 1912, and the torrent of discoveries that followed. With interviews and commentaries from leading scientists and historians of today, it is an exploration of the scientific and human story behind the past, present and future of one of the most important ever developments in science. Watch more science videos on the Ri Channel http://richannel.org The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution Subscribe for the latest science videos: http://richannel.org/newsletter