Here is the full list of all 12 Ether One achievements.
Taken every Core Memory photograph.
Restored all of the plaques.
Restored 20 Projectors.
Listened to all the Voicemail messages.
Heard the complete tale of The Knocker.
Collected all the Memory Fragments.
Rang the bell in the Institute upon your return.
Restored 15 Projectors.
Fill the shelves in The Case.
Restored 10 Projectors.
Restored 5 Projectors.
Swapped the fuse in Restoration Chamber 3.