Foucault pendulums and eclipses
In 1954, Nobel laureate Maurice Allais reported that a Foucault pendulum exhibited peculiar movements at the time of a solar eclipse. If true, his finding raises new questions about the nature of such phenomena.
The inventor of the gyroscope, Jean Bernard Leon Foucault, demonstrated during the 1851 World's Fair that a pendulum could track the rotation of the Earth. Remarkably, little more than two long-term scientific records for Foucault pendulums have been published. Both experiments were conducted by eventual Nobel Prize winners: Heike Kamerlingh-Onnes, who won the 1913 Nobel prize in Physics for his investigations on the properties of matter at low temperatures (which led to the production of liquid helium), and Allais, who won the 1988 Nobel prize in Economics for his contributions to the theory of markets and efficient use of resources.
For details, including an intriguing suggestion that the "speed of gravity" is on the point of being discovered at last, click on the links below.
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