Online research in philosophy

Natural deduction is the type of logic most familiar to current philosophers, and indeed is all that many modern philosophers know about logic. Yet natural deduction is a fairly recent innovation in logic, dating from Gentzen and Ja?kowski in 1934. This article traces the development of natural deduction from the view that these founders embraced to the widespread acceptance of the method in the 1960s. I focus especially on the different choices made by writers of elementary textbooks?the standard conduits of the method to a generation of philosophers?with an eye to determining what the ?essential characteristics? of natural deduction are.

After a short introduction into the history of the building of the Physics Institute of the University of Breslau, the development under Otto Lummer is sketched: influenced by the newly founded Technische Hochschule, the building as well as the faculty, were enlarged. The collection of instruments for instruction and research was built up and the cooperation with industry and with guests from abroad strengthened. Young scientists were promoted, making Lummer’s institute into one of the leading ones in optics at that time.

Metaphysical schemata and intellectual traditions -- Laws of nature : the scientific concept -- Natural law : disputed moments of transition -- Natural rights : origins and grounding.

Why was it that Francis Bacon, trained for high political office, devoted himself to proposing a celebrated and sweeping reform of the natural sciences? Julian Martin's investigative study looks at Bacon's family context, his employment in Queen Elizabeth's security service and his radical critique of the relationship between the Common Law and the Monarchy, to find the key to this important question. Deeply conservative and elitist in his political views, Bacon adapted Tudor strategies of State management and bureaucracy, the social anxieties and prejudices of the late-Elizabethan governing elite, and a principal intellectual resource of the English governing classes - the Common Law - into a novel vision and method for the sciences. Bacon's axiom that 'Knowledge is Power' takes on far-reaching implications in Martin's challenging argument that the reform of natural philosophy was a central part of an audacious plan to strengthen the powers of the Crown in the State.

Brian Wormald provides a fundamental reappraisal of one of the most complex and innovative figures of the late-Elizabethan and Jacobean age. In the centuries since his death, Francis Bacon (1561-1626) has been perceived and studied as a promoter and prophet of the philosophy of science--natural science--but he saw himself also as a clarifier and promoter of what he called "policy" or the study and improvement of the structure and function of civil states. Mr. Wormald shows that Bacon was concerned equally with the knowledge of the world of nature and with that of policy. The junction between the two enterprises was effected by his work in history; and in the end it was Bacon's conception and practice of history that provided the answer to his efforts to advance policy and natural philosophy.