Archive for October 2008

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Lists of tools

Insecure best tools list Security Tools Database

Virtual Murder?

http://news.yahoo.com/s/ap/20081023/ap_on_re_as/as_japan_avatar_murder Online divorcee jailed after killing virtual hubby By MARI YAMAGUCHI, Associated Press Writer Mari Yamaguchi, Associated Press Writer – Thu Oct 23, 3:48 pm ET TOKYO – A 43-year-old Japanese woman whose sudden divorce in a virtual game world made her so angry that she killed her online husband’s digital persona has been arrested on suspicion of hacking, [...]

1901 – Heisenberg – bio

Werner Heisenberg was born in 1901 in Munich, Germany and was a physicist known for creating the matrix version of quantum mechanics and for postulating “the Heisenberg uncertainty theorem”. PRECURSOR: 1821 – Cayley 1831 – Maxwell 1858 – Planck 1862 – Hilbert 1868 – Sommerfeld CONCURRENT: 1879 – Einstein 1880 – Riesz 1882 – Born [...]

1885 – Bohr – bio

Niels Henrik David Bohr was born in 1885 in Copenhagen, Denmark. He studied under Ernest Rutherford and expanded Rutherford’s theories into a model of atomic structure that included electrons circling the atomic nucleus. Bohr created the idea that an electron could drop to a lower energy level by emitting a quantum of light known as [...]

1743 – Lavoisier – bio

Antoine-Laurent de Lavoisier was born in 1743 in Paris, France and worked in the fields of chemistry and biology. He helped construct the metric system and also helped to create “The Method of Chemical Nomenclature” which was the first modern attempt to classify elements. He was considered to be the “father” of modern chemistry. Lavoisier [...]

-1500 – iron age

During the bronze age, iron ore was known and some limited iron working was done. But the high melting temperature of iron made it difficult to extract and to work with. It was possible to extract from iron ore a cluster of iron globules that were mixed with impurities. Reheating and working this metal could [...]

-7000 – copper age

The earliest tools and weapons were made from stone, primarily flint. Then it was noticed that a nugget of copper (like a blue-green stone) could be melted in a fire and reshaped. This discovery eventually made it possible to melt copper into a liquid, then pour it into a mold and allow it to cool [...]

0370 – Hypatia – bio

Hypatia was a Greek female mathematician, philosopher and astronomer, born around 370 in Alexandria, Egypt. She studied the works of Plato and Aristotle. Her father, Theon was a mathematician and philosopher at the University of Alexandria. She edited some of her fathers work and wrote commentaries on other works of the time, such as Euclid [...]

0085 – Ptolemy – bio

Claudius Ptolemaeus was born in Egypt around 85 as a Roman citizen. He was a mathematician, astronomer and geographer. He is famous for a series of books: Harmonics – on musical theory Optics – properties of light, including reflection, refraction and color Geography – used a coordinate grid system Tetrabiblos (four books) – on astrology [...]

1571 – Kepler – bio

Born in 1571 in the Stuttgart region of Germany, Johannes Kepler was a mathematician and astronomer. Kepler became the first published defender of the heliocentric theory of Copernicus. He described planetary orbits as platonic solids and then realized that the orbits are eliptical. Kepler studied the golden ration and wrote this about it: “Geometry has [...]