The Measurement of Little g: A Fertile Ground for Precision Measurement Science.
The occasion of the 100th anniversary of Einstein's "golden year" provides a wonderful opportunity to discuss some aspects of gravity-gravitation being an interest of Einstein's that occurred a few years after 1905. I'll do this by talking about the measurement of little g, the free-fall acceleration on the Earth's surface that is mainly due to the Earth's gravity but whose value is also affected by centrifugal forces that are a result of the Earth's rotation. I will also describe two equivalence experiments and a test of the inverse-square law of gravitation. Finally, I will make some observations on the science of precision measurement-a subject that underpins much of scientific progress.
JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, CO 80309-0440.
James E
JE
Faller
Einstein; acceleration of gravity; encouraging creativity; g, gravity; little g, measurement science; precision measurement