Steam digester Torricelli and further developed by German scientist Otto von Guericke with his Magdeburg hemispheres. Guerike's demonstration was documented by Gaspar Schott, in a book that was read by Robert Boyle. Boyle and his assistant Robert Hooke improved Guericke's air pump design and built their own. From this, through various experiments, they formulated what is called Boyle's law, which states that the volume of a body of an ideal gas is inversely proportional to its pressure. Soon the ideal gas law was formulated. Based on these concepts in 1679 a Boyle's associate, named Denis Papin, built a "bone digester", which is
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