Natural Philosophy Alliance
The Natural Philosophy Alliance NPA) was founded in 1994 by Dr. John Chappell and others in order to create an organization friendly to the idea of criticizing Einstein's Special Theory of Relativity. The first president being John Chappell of California who organized conferences and debates, wrote newsletters, and kept the spirit of critical thinking alive in the 1990s and 2000s.
After the death of John Chappell in 2002, the NPA continued under various presidents including Francisco Muller, and Dr. Eberely Spencer and was able to maintain a membership between 40 and 60 people with annual meetings. In 2013 under new directorship, the NPA members voted overwhelmingly for the president and secretary to step down. Given the bylaws, the new directors refused to step down, and 97% of the membership left and formed a new group called the John Chappell Natural Philosophy Society.
After the split, the NPA did hold one conference in 2014 but with a very small attendance and almost no members, it is all but ceased to function.