Foucault's Pendulum - Umberto Eco  ## Metadata - Author: **Umberto Eco** - Full Title: Foucault's Pendulum - Category: #books ## Highlights - That was when I saw the Pendulum. The sphere, hanging from a long wire set into the ceiling of the choir, swayed back and forth with isochronal majesty. I knew—but anyone could have sensed it in the magic of that serene breathing—that the period was governed by the square root of the length of the wire and by *it*, that number which, however irrational to sublunar minds, through a higher rationality binds the circumference and diameter of all possible circles. ([View Highlight](https://read.readwise.io/read/01j2ppy74fs65yjw695qwsdb2e)) - Tags: #book-start