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 the jurisdiction establishing such union substantially the same rights, benefits, protections, responsibilities, obligations and duties as a marriage. § 129. Equal treatment of marital relationships. (a) All laws of this State applicable to marriage or married spouses or the children of married spouses, 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, shall apply equally to same-gender and different-gender married couples and their children. (b) Parties to a marriage shall be included in any definition or use of terms such as "dependent,"