Archives August 2014

Print editions of journals in the inventory of the library system of the Freie Universität Berlin are completely in the online catalog detected. There, helps the search by magazines on. It demonstrates the most to members of the FU licensed at the FU-line journals. Important: A large number of full text available at the Free University of Anglo-American journals and journal articles located in the database LexisNexis Professional [ Overview of casebooks and journals that are included in full text here ]. The search can be useful in the Bibliography Web of Science (see attachment research). Access to full text only on LexisNexis yourself, as a direct access to the contents of LexisNexis not from the outside through portals and bibliographies is possible. Search for law essay writing journals Search for articles in law journals is possible through online bibliographies, through the portal Primo and within databases. All three paths more...

Home improvement work is risky business. Children's cartoons  serve  as continual  public  service announcements of the hazards of "do-it-yourself"—stepping on garden rakes and putting hammers through thumbs tend to top the charts in terms of accidents. For traveling salesman Peter L. Robertson (1879-1951), however, a real accident in 1906, when he put a sharp screwdriver through his hand, prompted him to find a way of avoiding such accidents. By 1908 Robertson was manufacturing a screw that was to revolutionize the industry. In Henry Petroski's book on the evolution of useful things he talks about the square-headed screw being invented to improve on existing designs—specifically the elimination or reduction of the risk of a slip. However, another improvement that Robertson made on the traditional screw was that his version could be fastened tighter than its rivals and operated with one hand—a very useful advantage for mechanics and other craftsmen alike. The more...

From the late 1890s Swedish inventor Carl Nyberg (1858-1939) was interested in solving the problem of manned flight. His numerous experiments with his Flugan (The Fly) flying machine generally proved unsuccessful, much to the amusement of local onlookers. Nyberg may not have suceeded in achieving his ambition of flight, but his flying machine was powered by a steam engine heated by four blowtorches, and it was the latter—a handy tool still widely used today—that he gave to the world. Nyberg, a prolific inventor who also worked on cookers, steam engines, and boat propellers, invented the blowtorch in 1881, although the actual patent application was made by business entrepreneur Max Sievert who showed an interest in Nyberg's invention and began selling it from about 1886. The blowtorch consists of a cylinder filled with fuel, usually propane, butane, or liquid petrol gas. This is vaporized and then mixed with oxygen (from the more...

"A pair of powerful spectacles has sometimes sufficed to cure a person in love." Friedrich Nietzsche, philosopher Bad eyesight has likely plagued humans since they first stood upright. Real solutions were not available until the thirteenth century when eye glasses were invented. Late in the 1880s, two eye doctors and a medical student independently invented contact lenses. Doctors Adolf E. Fick and Eugene Kalt set out to help their patients whereas medical student August Muller wanted to correct his own near-sightedness. Early lenses were literally a glass lens in direct contact with the eye. For their comfort and health, users could only wear them for brief periods as the lenses caused pain, swelling, and cornea hypoxia. Despite these drawbacks, more than 10,000 pairs sold in the United States from 1935 to 1939. By 1949, sales had reached 200,000 thanks to the plastic potymethylmethylpropenoate (PMMA) and Kevin Tuohy's 1948 invention of more...