Gas dioxide, and air expand to the same extent over the same 80 kelvin interval. He noted that, for an ideal gas at constant pressure, the volume is directly proportional to its temperature: In 1802, Joseph Louis Gay-Lussac published results of similar, though more extensive experiments. Gay-Lussac credited Charles' earlier work by naming the law in his honor. Gay-Lussac himself is credited with the law describing pressure, which he found in 1809. It states that the pressure exerted on a container's sides by an ideal gas is proportional to its temperature. In 1811, Amedeo Avogadro verified that equal volumes of pure
Same-sex marriage so on." It has also averred that same-sex couples who may only enter into a civil union, as opposed to a marriage, "are denied equal access to all the benefits, rights, and privileges provided by federal law to those of married couples," which has adverse effects on the well-being of same-sex partners. In 2009, a pair of economists at Emory University tied the passage of state bans on same-sex marriage in the United States to an increase in the rates of HIV infection. The study linked the passage of a same-sex marriage ban in a state to an increase in