Atomic theory formula for the water molecule (HO), or 16 if one assumes the modern water formula (HO). The flaw in Dalton's theory was corrected in principle in 1811 by Amedeo Avogadro. Avogadro had proposed that equal volumes of any two gases, at equal temperature and pressure, contain equal numbers of molecules (in other words, the mass of a gas's particles does not affect the volume that it occupies). Avogadro's law allowed him to deduce the diatomic nature of numerous gases by studying the volumes at which they reacted. For instance: since two liters of hydrogen will react with just one liter
History of same-sex marriage in the United States 2013, the U.S. Supreme Court issued a 5–4 decision in "United States v. Windsor", ruling Section 3 of DOMA unconstitutional "as a deprivation of the equal liberty ... protected by the Fifth Amendment." The decision was widely quoted by both sides in same-sex marriage lawsuits. On August 4, 2010, a decision by a U.S. District Court in "Perry v. Schwarzenegger" ruled that California's Proposition 8 was unconstitutional. The Supreme Court dismissed the case for lack of standing on June 26, 2013, after which the issuance of marriage licenses to same-sex couples resumed on June 28, 2013. New Jersey began issuing