Pellegrino Ernetti

Pellegrino Maria Ernetti (October 13, 1925 - April 8, 1994) was an Italian monk of the Benedictine Order and musicologist (focused on pre- and early Christian works), popularly claimed to be the creator of the Chronovisor, a device that purportedly enables the user to see and hear scenes from the past via an unknown process involving harmonic resonance.