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
Anglo-Irish people in part and Catholic but had converted to Anglicanism. The term "Anglo-Irish" is often applied to the members of the Church of Ireland who made up the professional and landed class in Ireland from the 17th century up to the time of Irish independence in the early 20th century. In the course of the 17th century, this Anglo-Irish landed class replaced the Gaelic Irish and Old English aristocracies as the ruling class in Ireland. They were also referred to as "New English" to distinguish them from the "Old English", who descended from the medieval Hiberno-Norman settlers. A larger but less