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Léon Foucault Quotes

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Above all, we must be accurate, and it is an obligation which we intend to fulfil scrupulously.

Léon Foucault
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May those men who are animated by the true scientific spirit cease to believe that they are obliged to consider only subjects of public utility;... because, one must not hide it, the field of applications, so rich and fertile today, would not take long to be blighted by sterility if it ceased to be fertilized and revivified by the beneficial light which theoretical research radiates and pours incessantly upon it.

Léon Foucault
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To contribute usefully to the advance of science, one must sometimes not disdain from undertaking simple verifications.

Léon Foucault
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The phenomenon develops calmly, but it is invisible, unstoppable. One feels, one sees it born and grow steadily; and it is not in one's power to either hasten it or slow it down. Any person, brought into the presence of this fact, stops for a few moments and remains pensive and silent; and then generally leaves, carrying with him forever a sharper, keener sense of our incessant motion through space.

Léon Foucault
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You are invited to come to see the Earth turn, tomorrow, from three to five, at Meridian Hall of the Paris Observatory.

Léon Foucault

Quote of the day

What we observe is not nature itself but nature exposed to our method of questioning. Our scientific work in physics consists in asking questions about nature in the language that we possess and trying to get an answer from experiment by the means that are at our disposal.
Werner Heisenberg

Léon Foucault

Léon Foucault
Creative Commons

Born: September 18, 1819
Died: February 11, 1868 (aged 48)
Bio: Jean Bernard Léon Foucault was a French physicist best known for his demonstration of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation.

WikipediaLéon Foucault on Wikipedia

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