The Recollection Dissipation: Sheldon collaborates on two scientific projects - one with Leonard and Howard, plus another with Amy - at once, pushing himself to the limit. (S10 Ep20/24) [AD,S]
The Brain Bowl Incubation: Sheldon tries to convince Amy that they should have a baby together after they successfully complete an experiment using their DNA samples. (S10 Ep8/24) [AD,S]
The Military Miniaturization: Howard has a meeting with Air Force representative Colonel Williams about the gyroscope that he invented with Leonard and Sheldon. (S10 Ep2/24) [AD,S]
The Helium Insufficiency: Sheldon and Leonard struggle to find the supplies they need for a scientific experiment. Penny and Bernadette download a dating app for Amy. (S9 Ep6/24) [AD,S]
The Bachelor Party Corrosion: The guys' science skills are tested to the limit when they get a flat tyre during Leonard's surprise bachelor party weekend in Mexico. (S9 Ep3/24) [AD,S]
The Romance Resonance: Sheldon is mortified when he stumbles upon an important scientific breakthrough by accident. Howard makes a romantic gesture to Bernadette. (S7 Ep6/24) [AD,S]
The Contractual Obligation Implementation: Leonard, Sheldon and Howard are forced to volunteer for a university committee, so they join one that supports women in science. (S6 Ep18/24) [AD,S]
The Einstein Approximation: Sheldon is baffled by a formula he's working on, so he gets a less mentally taxing job at the Cheesecake Factory to kick-start his creativity. (S3 Ep14/23) [AD,S]
The Gorilla Experiment: Penny feels left out when Bernadette asks Sheldon to teach her about science. And Howard is jealous when Bernadette asks Leonard about his work. (S3 Ep10/23) [AD,S]
The Jiminy Conjecture: Ten episodes about the studies of the brainy boffins feature in this Good Friday stack. Sheldon and Howard take bets to determine a species of cricket. (S3 Ep2/23) [AD,S]