永动机：太空中的动量如何呈现？

Views Columnist Perpetual motion How do you portray momentum in space? Chanda Prescod-Weinstein reveals how the physics of Project Hail Mary goes back to ancient China PARTWAY through watching Project Hail Mary, I let out a solitary gasp. Wondering why nobody else in the theatre was shocked about what I had just seen, I realised it was because I am a physicist. Let me explain, with a mild spoiler: there’s a scene in the middle of the film where the Hail Mary spaceship lurches forward. Ryan Gosling’s character, Ryland Grace, isn’t strapped into his seat and his head smacks into the screens in front of him. If this wasn’t happening in a film, he would have certainly died. …