# S3-Scientific Breakthroughs

By [Big Bang Theory Fans](https://dylit.info/user/bigbangtheoryfans)

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Episode 10: The Gorilla Experiment Penny asks Sheldon to teach her basic physics so she can understand Leonard’s work, prompting an overly formal “class” complete with whiteboard lectures and snarky comments. Leonard, feeling threatened that Sheldon is teaching his girlfriend, reacts badly until he realizes Penny just wants to connect with his world, leading to a sweet reconciliation