Prusik Knot | How to tie the Prusik Knot | Climbing Knots
History: The Prusik knot was developed in 1931 by Dr.Karl Prusik (sometime president of the Austrian Mountaineering Club and often misspelled "Prussik".) It appears to be identical in structure to a knot described by Ashley for hoisting a spar. (ABOK # 1763, p 300), but Ashley did not name this knot and did not describe the slide and grip feature. The knot requires a "Prusik Loop" Uses: Its principal use is allowing a rope to be climbed - ascending or "Prusiking". Making Prusik Loops: Prusik loops are constructed by joining together the two ends of accessory cord (5 or 6 mm) using a Double Fisherman's (or a Triple Fisherman's). Choosing a length: Many factors govern the length of rope used to make a Prusik Loop; what it will be used for; the number of wraps that will used in the Prusik Knot; the diameters of the ropes; and, the height of the user. The Klemheist The Bachmann Knot
Abraham Maslow
Dr. C. George Boeree Maslow (en français: Silvia Moraru) Biography Abraham Harold Maslow was born April 1, 1908 in Brooklyn, New York. To satisfy his parents, he first studied law at the City College of New York (CCNY). He and Bertha moved to Wisconsin so that he could attend the University of Wisconsin. there working with Harry Harlow, who is famous for his experiments with baby rhesus monkeys and attachment behavior. He received his BA in 1930, his MA in 1931, and his PhD in 1934, all in psychology, all from the University of Wisconsin. He began teaching full time at Brooklyn College. Maslow served as the chair of the psychology department at Brandeis from 1951 to 1969. He spend his final years in semi-retirement in California, until, on June 8 1970, he died of a heart attack after years of ill health. Theory One of the many interesting things Maslow noticed while he worked with monkeys early in his career, was that some needs take precedence over others. 1. 2. 3. 4. Self-actualization
weird things customers say in bookshops
I love our customers, I really do. But some days we get some strange people in our shop. Here are some gems I'd like to share. Customer:: Hi... erm... are you a library? Customer: Excuse me, do you have any signed copies of Shakespeare plays?Me: Er... do you mean signed by the people who performed the play? Customer: Hi, I'd like to return this book, please. Person: Hi, I'm looking for a Mr. on the phoneMe: Hello Ripping Yarns.Customer: Do you have any mohair wool? Customer: Hi, if I buy a book, read it, and bring it back, could I exchange it for another book? Me: Ok, so with postage that brings your total to £13.05. Pizza Delivery Man [entering the shop with a large pile of pizzas and seeing me, the only person in the bookshop]: Hi, did you order fifteen pizzas? Me: Hello, Ripping Yarns BookshopMan: Hello, is that Ripping Yarns? Customer: Hello, I'd like a copy of 'The Water Babies,' with nice illustrations. Customer: Do you sell ipod chargers? Man: Hi, I've just self-published my art book.
the plowden report
contents: introduction - backround to the plowden report · what plowden said about the curriculum · the plowden report - a chequered history · criticism of the plowden report · plowden today · bibliography · links · how to cite this article Introduction: background to the Plowden Report In August 1963 the then Minister of Education, Sir Edward Boyle, asked the Central Advisory Council for Education (England) 'to consider primary education in all its aspects and the transition to secondary education.' The Council, under the Chairmanship of Bridget Plowden, presented its report to the Secretary of State for Education and Science, Rt. Hon Anthony Crosland, in October 1966. There had not been a thorough review of primary education in England since Sir Henry Hadow's Report of 1931. The context in which the Committee worked was characterised by an increasingly liberal view of education and society. The Plowden Report emphasises the need to see children as individuals. Plowden today References
RegExp - MDN Docs
Summary The RegExp constructor creates a regular expression object for matching text with a pattern. For an introduction on what regular expressions are, read the Regular Expressions chapter in the JavaScript Guide. Constructor Literal and constructor notations are possible: /pattern/flags; new RegExp(pattern [, flags]); Parameters pattern The text of the regular expression. flags If specified, flags can have any combination of the following values: g global match i ignore case m multiline; treat beginning and end characters (^ and $) as working over multiple lines (i.e., match the beginning or end of each line (delimited by \n or \r), not only the very beginning or end of the whole input string) y sticky; matches only from the index indicated by the lastIndex property of this regular expression in the target string (and does not attempt to match from any later indexes). Description There are 2 ways to create a RegExp object: a literal notation and a constructor. /ab+c/i;new RegExp("ab+c", "i"); Notes
How digital detectives deciphered Stuxnet, the most menacing malware in history
It was January 2010, and investigators with the International Atomic Energy Agency had just completed an inspection at the uranium enrichment plant outside Natanz in central Iran, when they realized that something was off within the cascade rooms where thousands of centrifuges were enriching uranium. Natanz technicians in white lab coats, gloves, and blue booties were scurrying in and out of the "clean" cascade rooms, hauling out unwieldy centrifuges one by one, each sheathed in shiny silver cylindrical casings. Any time workers at the plant decommissioned damaged or otherwise unusable centrifuges, they were required to line them up for IAEA inspection to verify that no radioactive material was being smuggled out in the devices before they were removed. The technicians had been doing so for more than a month. Normally Iran replaced up to 10 percent of its centrifuges a year, due to material defects and other issues. The question was, why? The story of Stuxnet might have ended there.
The Lego Barad-dûr: 50,000 pieces, 2 months to build, pure awesome
"I can't exactly tell you how many parts are in the model, but I ordered about 25,000, and the same amount of parts came from my own stock," Kevin Walter told Ars. "My final guess is more than 50,000." I first saw the images of his Lego model of Barad-dûr when another member of the staff posted images while we talked about stories we were working on. Walter began work on the model in late 2010, and the actual construction took around two and a half months. "But the ultimate challenge was just a small part of the tower—the two small towers on the corners with their hexagonal shape—I needed over two weeks of continuing tries and fails, before I got the final solution for it," he said. The tower was actually part of a larger effort between 15 people from five different countries, all for a community website where people share their Lego creations. Walter was happy with his choice to create the Barad-dur.
StockChase
