[s2e17] The Terminator Decoupling -

In a highlight of the season, Penny loses patience with Sheldon’s complex instructions and simply smashes his puzzle box to get the drive.

Raj manages to talk to her after drinking what he thinks is beer, only to lose his "magic" when Howard reveals it is non-alcoholic.

Sheldon simply loves trains, even if it means dragging the group through a 7-hour odyssey to meet Nobel laureate George Smoot. 2. The "Summer" Variable [S2E17] The Terminator Decoupling

Sheldon must guide Penny into his "sanctum sanctorum" (his bedroom) via phone.

It takes seven times as long as a flight and costs twice as much. In a highlight of the season, Penny loses

After all the effort, Sheldon’s attempt to present the paper to Dr. George Smoot results in Smoot throwing the paper away.

While the boys are on the train, Sheldon realizes he left a flash drive with his research paper at the apartment. After all the effort, Sheldon’s attempt to present

The episode features actress (playing herself), famous for Terminator: The Sarah Connor Chronicles .