Orison Swett Marden：Pushing to the Front, Excerpt 32

Everybody knew how steadily a suspended weight, when moved, sways back and forth until friction and the resistance of the air bring it to rest, yet no one considered this information of the slightest practical importance; but the boy Galileo, as he watched a lamp left swinging by accident in the cathedral at Pisa, saw in the regularity of those oscillations the useful principle of the pendulum. Even the iron doors of a prison were not enough to shut him out from research. He experimented with the straw of his cell, and learned valuable lessons about the relative strength of tubes and rods of equal diameters.

Source： https://www.gutenberg.org/ebooks/21291
Locator：Excerpt 32 · Verified：2026-10-19 · Verification：Short excerpt

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