Six Not-so-easy Pieces May 2026

: This central portion explains how the flow of time and mass change with velocity, and why the speed of light remains constant for all observers.

Reviews of the book consistently highlight the "not-so-easy" nature of its content compared to the first volume: Six Not-So-Easy Pieces

: The final chapters transition into Einstein’s broader theory, famously using analogies like a "blind bug on a plane" to explain the curvature of space-time. Critical Review & Difficulty : This central portion explains how the flow

: Reviewers from The StoryGraph and AAAS note that while Feynman uses practical analogies to bypass jargon, the material is mathematically denser and often requires a pencil and paper to work through. Six Not-So-Easy Pieces