Graham's law has come to denote an important class of finely divided materials. Around the time Graham did his work, the concept of molecular weight was being established largely through the measurements of gases. Daniel Bernoulli suggested in 1738 in his book Hydrodynamica that heat increases in proportion to the velocity, and thus kinetic energy, of gas particles. Italian physicist Amedeo Avogadro also suggested in 1811 that equal volumes of different gases contain equal numbers of molecules. Thus, the relative molecular weights of two gases are equal to the ratio of weights of equal volumes of the gases. Avogadro's insight together with
Same-sex marriage law in the United States by state this State, whether derived from statutes, administrative rules or regulations, court rules, governmental policies, common law, court decisions, or any other provisions or sources of law, including in equity, adopt, refer to, or rely upon in any manner, provisions of United States federal law that would have the effect of treating differently same-gender married spouses or their children as compared to different-gender married spouses or their children, same-gender married spouses and their children shall be treated in all respects by the laws of this State as if United States federal law recognizes a marriage between persons of the same gender