Jasper County Democrat, Volume 6, Number 42, Rensselaer, Jasper County, 23 January 1904 — Pascal’s Early Observation. [ARTICLE]
Pascal’s Early Observation.
Blaise Pascal, who wrote a remarkable treatise On the laws of sound, was constantly observing the familiar occurrences about him even as a boy. When he was only ten years old he sat at the dinner table one day striking his plate with bis knife and then listening to the souud. “What are you doing with that platat Blaise?" asked bis sister. “See," he replied. o “When I strike the plate with my knife It rings. Hark!” Again he called forth the sound. “When I grasp It with my hand so,” he continued, “the sound ceases. I wonder why' it is.”
