The Terrascope is a special X-ray device invented by Gyro Gearloose.
The Terrascope is an invention by Gyro Gearloose meant to be used in conjunction with the Gyro-Plane to scout for buried treasure in the desert. Using it with Scrooge McDuck to locate the ruins of ancient Tootum-Too, Gyro discovered an unforeseen effect of the Terrascope's special X-rays, which, when combined with the propellor of the Gyro-Plane, somehow produced a time-machine-like effect that sent the Gyro-Plane backwards through time along with its occupants.
Behind the scenesEdit
The Terrascope was first seen in 1982 in Trip to Tootum-Too.