Foucault's pendulum - Umberto Eco [1]
But this deviation from the Law, which the Law took into account, this violation of the rule’ did not make the marvel any less marvelous. I knew the earth was rotating, and I with it, and Saint-Martin-des-Champs and all Paris with me, and that together we were rotating beneath the Pendulum, whose own plane never changed direction, because up there, along the infinite extrapolation of its wire beyond the choir ceiling, up toward the most distant galaxies, lay the Only Fixed Point in the universe, eternally unmoving.
So it was hot so much the earth to which I addressed my gaze but the heavens, where the mystery of absolute immobility was celebrated. The Pendulum told me that, as everything moved— earth, solar system, nebulae and black holes, all the children of the great cosmic expansion—one single point stood still: a pivot, bolt, or hook around which the universe could move. And I was now taking part in that supreme experience. I, too, moved with the all, but I could see the One, the Rock, the Guarantee, the luminous mist that is not body, that has no shape, weight, quantity, or quality, that does not see or hear, that cannot be sensed, that is in no place, in no time, and is not soul, intelligence, imagination, opinion, number, order, or measure. Neither darkness nor light, neither error nor truth.
I was roused by a listless exchange between a boy who wore glasses and a girl who unfortunately did not.
“It’s Foucault’s Pendulum,” he was saying. “First tried out in a cellar in 1851, then shown at the Observatoire, and later under the dome of the Pantheon with a wire sixty-seven meters long and a sphere weighing twenty-eight kilos. Since 1855 it’s been here, in a smaller version, hanging from that hole in the middle of the rib.”
“What does it do? Just hang there?”
“It proves the rotation of the earth. Since the point of suspension doesn’t move...”
“Why doesn’t it move?”
“Well, because a point...the central point, I mean, the one right in the middle of all the points you see...it’s a geometric point; you can’t see it because it has no dimension, and if something has no dimension, it can’t move, not right or left, not up or down. So it doesn’t rotate with the earth. You understand? It can’t even rotate around itself. There is no ‘itself.’ “
“But the earth turns.”
“The earth turns, but the point doesn’t. That’s how it is. Just take my word for it.”
“I guess it’s the Pendulum’s business.”
Idiot. Above her head was the only stable place in the cosmos, the only refuge from the damnation of the panta rei, and she guessed it was the Pendulum’s business, not hers. A moment later the couple went off—he, trained on some textbook that had blunted his capacity for wonder, she, inert and insensitive to the thrill of the infinite, both oblivious of the awesomeness of their encounter—their first and last encounter—with the One, the Ein-Sof, the Ineffable. How could you fail to kneel down before this altar of certitude?
I watched with reverence and fear. In that instant I was convinced that Jacopo Belbo was right. What he told me about the Pendulum I had attributed to esthetic raving, to the shapeless cancer taking gradual shape in his soul, transforming the game into reality without his realizing it. But if he was right about the Pendulum, perhaps all the rest was true as well: the Plan, the Universal Plot. And in that case I had been right to come here, on the eve of