Is it right to probe so deeply into Nature's secrets? The question must here be raised whether it will benefit mankind, or whether the knowledge will be harmful.

The material constant in Curie's law is known as the Curie constant. For example a random mixture of sand in zero gravity has no dissymmetry (it is isotropic). Pierre Curie died in a street accident in Paris on 19 April 1906.

Pierre Curie (15 May 1859 – 19 April 1906) was a French physicist a pioneer in crystallography magnetism piezoelectricity and radioactivity. In 1903 he received the Nobel Prize in Physics with his wife Marie Salomea Skłodowska-Curie and Henri Becquerel "in recognition of the extraordinary services they have rendered by their joint researches on the radiation phenomena discovered by Professor Henri Becquerel".