Maurice Allais  found  deviations of a  Paraconical Pendulum during the 1954 Solar Eclipse in Paris, and also in 1959. The deviation was about 15 degrees which is quite substantial.  Scientists still have "no idea" of the cause of these observations, but tend to attribute them to natural causes rather  than gravitational variability. The deviation found was claimed to be about 100 million times greater than scientific theory would allow.

Allais's experimental work entailed a swinging pendulum. This normally changes direction slowly as the Earth rotates and the alignment with the various gravitational  bodies alters. His pendulum took a sudden deviation during the total solar eclipse, of about 15 degrees. It is fairly obvious that the moon must be blocking something, and "modern science" does not want to know.

About 1999 Allais had his findings translated from French to English in the forlorn hope that NASA might revisit his work, but nothing much has been done.  This is a 3.8 Mb PDF file.

A huge amount of material about Allais and his work is available on the Internet, and is essential reading for anyone interested in understanding, as opposed to ignoring, gravity.

Maurice Allais is a highly intelligent scientist, who's work in another area earned him a Nobel Prize. His findings should have been incorporated into our store of knowledge, not disregarded.