Scientific Pursuits

Scientific Pursuits is a main quest in Fallout 3 and is also an achievement/trophy.

Synopsis
Three Dog informed the Lone Wanderer that their father had headed to Rivet City to speak for a certain Madison Li. She would be the best lead to finally find him.

Walkthrough

 * 1) Travel to Rivet City and enter its science lab.
 * 2) Talk to Dr. Madison Li.
 * 3) Go to the Jefferson Memorial and find Dad's holotapes.
 * 4) Travel to Vault 112 within Smith Casey's garage and enter the Tranquility Lane lounger.