Citation

It is often claimed that the form of a water crystal can be changed by human intent although there are few scientific studies that have tested this claim. In 2006, several researchers published the first scientific report which shows positive results for the claim. Recently, the authors have also considered this issue. Unexpectedly, they found two serious weak points in the conventional test procedure for water crystal formation. One of the points relates to the use of judgement, and the other relates to sample size. These points did not seem easy to find, and the authors were concerned that many researchers may fall into the trap laid by these points. In the present paper, the authors discuss these methodological problems of conventional tests, and indicate that photographs of water crystals are not independent parameters and that the numbers of water bottles used are too few to conclude something statistically.