Anybody got any theories about the gravitational anomalies observed during solar eclipses?

In 1954 French physicist Maurice Allais noticed erratic behavior in a swinging pendulum when an eclipse passed over Paris:

http://www.newscientist.com/article/dn17481-july-eclipse-is-best-chance-to-look-for-gravity-anomaly.html

Gravitons blocked by the moon?:

http://www.autodynamicsuk.org/Allias%20Anomoly.htm

http://bigbang-entanglement.blogspot.com/2006/03/how-small-anomalies-could-influence.html

I'm thinking, we have a long way to go toward understanding the rules that drive our reality.