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
Status of same-sex marriage in a state where those statuses were legally recognized, regardless of the state in which the employee worked or resided. Accordingly, even if an employer had employees working where same-sex or common law marriage was not recognized, those employees' spouses would trigger FMLA coverage if an employee was married in one of the states that recognized same-sex marriage or common law marriage. The "Obergefell v. Hodges" decision on 26 June 2015 eliminated the distinction between same-sex marriage and opposite-sex marriage at the federal level, holding that marriage was a constitutional right, and that same-sex couples were entitled to equal rights