If it is possible to generate time energy photons inside a crystal, then that crystal becomes a time portal into the past at its location.
Given Earth`s orbit around the sun and its spin, at a particular point in space, one would see Earth come into collision, a good view on Earth's surface and then a view of inner Earth as that location move relative as Earth move, inside, into inner Earth.
Mining expedition without digging! Spying along Earth's trajectory without physical intrusion. A look inside of anything not being invasive.
A Chronovisor is not just for your viewing pleasure.
