Young Sheldon S04e17 1080p Fixed -

Sheldon has disassembled the cradle. Parts are strewn everywhere. He mutters to himself. Mary enters, holding a church flyer.

MARY: What are you doing?

SHELDON: It’s not a weapon. It’s a demonstration of momentum conservation. Though, theoretically, if one sphere were replaced with a high-density osmium core… young sheldon s04e17 1080p

SMASH CUT TO BLACK.

A woman gasps. Mary’s smile freezes.