The Prime Radiant is a data storage device containing all of Hari Seldon's psychohistorical calculations on the fall of the Galactic Empire.[3] The prototype of the Prime Radiant was developed by Hari and Yanna Seldon while working at a university on the planet Helicon.[4] It is a supercomputer that exists in a state of superposition, allowing it to exist in two places simultaneously.[1] The Prime Radiant was created by Hari Seldon and his life mate, Yanna, using Kalle's work on space folding to create a four-dimensional space in a three-dimensional object.[2] It was activated in a specific way, though a complex series of hand movements.[3] Hari Seldon kept it on his person,[5] and after his death it was taken from his office by Mari Hardin.[6] It was used by Salvor Hardin to open the Vault.[7]
Appearances[]
- Season One
- "The Emperor's Peace" (First appearance)
- "Preparing to Live"
- "The Mathematician's Ghost"
- "Barbarians at the Gate"
- "The First Crisis"
- Season Two