First hologram

Light can be used in many wonderful ways to capture images, but none so more enigmatic than a hologram. Capturing a 3D image on a piece of glass was first thought about by Hungarian-British physicist Dennis Gabor. However, it was not until the invention of the laser, whose coherent light could capture a holographic image, that Emmett Leigh and Juris Upatnieks of the University of Michigan made the first image. The result, recorded in 1962 on photographic silver halide film emulsion on glass, was of a toy train and a bird. This transmission hologram technique was supplemented by independent work in the same year by Soviet physicist Yuri Denisyuk, who invented white-light reflection holography that could be viewed using a simple light bulb.