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A Century of Light-Bending Measurements: Bringing Solar Eclipses into the Classroom
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Paper
A Century of Light-Bending Measurements: Bringing Solar Eclipses into the Classroom
2020
Overview
In 1919, Eddington and Dyson led two famous expeditions to measure the bending of light during a total solar eclipse. The results of this effort led to the first experimental confirmation of Einstein's General Relativity and contributed to create its unique and enduring fame. Since then, similar experiments have been carried out all around the world, confirming the predictions of the General Relativity. Later, developments in radio interferometry provided a more accurate way to measure the gravitation deflection. We believe that - after more than a century - starlight deflection caused by the Sun's gravity still represents a simple and intuitive way to introduce high-school students to General Relativity and its effects. To this aim, we gathered measurements taken during eight eclipses spanning from 1919 to 2017, and we created a single dataset of homogeneous values. Together with the whole dataset, this article provides a blueprint for a possible group activity for students, useful to introduce the theory in physics classes with a playful approach.
Publisher
Cornell University Library, arXiv.org
Subject
