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The Turing Digital Archive home page

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The Enigma Collection The Enigma Collection is meant to be a Web portal for information about the German cipher machine Enigma in all it variations. In the beginning this Web page should be seen as a kind of note board where I post information when my time and energy allows me to do so. Later on, the page hopefully will take on a more definitive form and perhaps it will even be more pleasing to the eye. For the time being the most important issue is to have a place where I can publish my Enigma notes. At the moment I am working on a detailed history of the Enigma and when this will be published, hopefully next year, I plan to publish here many of my research notes and other documents.

Imperial Festival Materials, microbes, maths and medicine. Explore Imperial's ground breaking research with a packed schedule of activities, talks and performances for all ages. This year's Festival will take place on Friday 9 and Saturday 10 May 2014. The Festival will be open to the public at the following times:16.00 - 22.00 on Friday12.00 - 18.00 on Saturday Colossus: The Secrets of Bletchley Park's Codebreaking Computers Colossus at wartime Bletchley Park. Table of Contents Colossus and two operators from the Women’s Royal Naval Service, Dorothy Du Boisson (left) and Elsie Booker.2 The Lorenz Schlüsselzusatz (cipher attachment) was code-named ‘Tunny’ by the British.3 An Enigma machine with its wheels, lamps and plugboard exposed. Once the operator had inserted the correct wheels for the day, he closed the inner lid.4

The Zimmermann Telegram Background Between 1914 and the spring of 1917, the European nations engaged in a conflict that became known as World War I. While armies moved across the face of Europe, the United States remained neutral. In 1916 Woodrow Wilson was elected President for a second term, largely because of the slogan "He kept us out of war." Events in early 1917 would change that hope. What are confounding factors and how do they affect studies? What are confounding factors and how do they affect studies? Designing a study is not easy. Suppose we want to understand the relationship between obesity and morbidity. Do obese people die earlier than normal-weight people? Earthquake prediction Earthquake prediction is a branch of the science of seismology concerned with the specification of the time, location, and magnitude of future earthquakes within stated confidence limits but with sufficient precision that a warning can be issued.[1][2] Of particular importance is the prediction of hazardous earthquakes likely to cause loss of life or damage to infrastructure. Earthquake prediction is sometimes distinguished from earthquake forecasting, which can be defined as the probabilistic assessment of general earthquake hazard, including the frequency and magnitude of damaging earthquakes in a given area over years or decades.[3] It can be further distinguished from earthquake warning systems, which upon detection of an earthquake, provide a real-time warning to regions that might be affected. Earthquake prediction and significance[edit] Prediction methods[edit] Precursors[edit] In the early 1990, the IASPEI solicited nominations for a Preliminary List of Significant Precursors.

Enigma machine goes on display at The Alan Turing Institute - The Alan Turing Institute Today an original Enigma machine has gone on display at The Alan Turing Institute. The Enigma M4 machine arrives at The Alan Turing Institute on loan from GCHQ (photographer credit Clare Kendall). The machine is loaned for display from GCHQ, who have partnered with the Institute to undertake research into data science for defence and security. School of Mathematics and Physics Pictures above: (1) Longtime custodian of the famous experiment, the late Professor John Mainstone. (2) Three webcams trained on the experiment 24/7. (3) The Pitch Drop Experiment. (4) Close up of the pitch drop. About the Pitch Drop Experiment While the School of Mathematics and Physics at The University of Queensland has an international reputation for cutting-edge research and innovative teaching in the disciplines of Mathematics, Physics and Statistics, it is also home to the famous Pitch Drop Experiment. The experiment is listed in the Guinness Book of World Records as the world's longest-running laboratory experiment. The first Professor of Physics at UQ, Professor Thomas Parnell, began an experiment in 1927 to illustrate that everyday materials can exhibit quite surprising properties.

 Frode Weierud’s CryptoCellar The Enigma Collection is meant to be a Web portal for information about the German cipher machine Enigma in all it variations. In the beginning this Web page should be seen as a kind of note board where I post information when my time and energy allows me to do so. Later on, the page hopefully will take on a more definitive form and perhaps it will even be more pleasing to the eye. For the time being the most important issue is to have a place where I can publish my Enigma notes.

Improbable Research - Longest Running Experiments by Marc Abrahams We are happy to report that three of the world’s longest-running scientific experiments are indeed still running. It has been a number of years since anyone checked on all three. Pythagorean Theorem and its many proofs Professor R. Smullyan in his book 5000 B.C. and Other Philosophical Fantasies tells of an experiment he ran in one of his geometry classes. He drew a right triangle on the board with squares on the hypotenuse and legs and observed the fact the the square on the hypotenuse had a larger area than either of the other two squares. Then he asked, "Suppose these three squares were made of beaten gold, and you were offered either the one large square or the two small squares. Which would you choose?" Interestingly enough, about half the class opted for the one large square and half for the two small squares.

Atlantic 1939-1945: Battle of the Atlantic The German Enigma Machine Catalogue ref: HW 25/6 What is this source? This is a photograph of an Enigma machine. Similar (but far more complicated) apparatus was used by the German navy to 'encrypt' or code the messages they sent to and from their ships in order to keep them secret. More

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