Researchers have succeeded in measuring the gravitational field of a gold sphere, just 2 mm in diameter, using a highly sensitive pendulum - and thus the smallest gravitational force. The experiment opens up new possibilities for testing the laws of gravity on previously unattained small scales.
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/03/210310122602.htm
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/03/210310122602.htm
Quantum physicists measure the smallest gravitational force yet
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March 10, 2021
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