Gas laws 1662 Robert Boyle studied the relationship between volume and pressure of a gas of fixed amount at constant temperature. He observed that volume of a given mass of a gas is inversely proportional to its pressure at a constant temperature. Boyle's law, published in 1662, states that, at constant temperature, the product of the pressure and volume of a given mass of an ideal gas in a closed system is always constant. It can be verified experimentally using a pressure gauge and a variable volume container. It can also be derived from the kinetic theory of gases: if a container,
Who is a Jew? Their history makes it most likely that they are Jewish rather than Arabic Muslim. In 2008, a gene mutation that is typically found only in Ashkenazi Jews, and is linked to a virulent form of breast cancer in women, was discovered in a cluster of Hispanic Catholic women in southern Colorado, many of whom trace their family's roots to northern New Mexico. It was conclusively shown to be related to Jewish ancestry, given the history of the people in the area, and many families reported knowledge of a high incidence of cancer. After testing and notification of families, researchers worked