Don't know if it was intentional, but a good casting choice. The Trebuchet Listen Now Download as mp3 Part 1,2 from the show Archaeology - The Science of History What you Need What to do A trebuchet works a bit like a big see-saw and the first job is to make the arm of the see-saw. Now push the biro through the both sides of the card arm, about a quarter of the way along from the widest end. Make 2 small holes in the cardboard on the centreline, one at each end. What may happen You should find that after a few adjustments the trebuchet can throw its projectile a surprising distance. Why does it happen? A trebuchet basically works like a see-saw. A trebuchet basically works in this way, with a slight complication of the sling. Real trebuchets would normally hurl a 100kg stone 300m but some of them were built to launch 300kg or even 800kg rocks several hundred metres. Dave Ansell Multimedia Related Content
Loi de Godwin La loi de Godwin est une loi empirique énoncée en 1990 par Mike Godwin, d'abord relative au réseau Usenet, puis étendue à Internet : Dans un débat, atteindre le point de Godwin revient à signifier à son interlocuteur que son crédit est dorénavant compromis par sa vérification de la loi de Godwin. Par extension, du fait de la polysémie du mot « point » (signifiant à la fois « argument » et « point » en anglais), des « points de Godwin » sont parfois attribués à cet interlocuteur[1]. Au départ relative aux discussions sur des forums virtuels, la loi de Godwin peut s'appliquer à tout type de conversation ou débat ; l'un des interlocuteurs atteint le point de Godwin lorsqu’il en réfère au nazisme, à Hitler ou à la Shoah, pour disqualifier l’argumentation de son adversaire[2]. Concept[modifier | modifier le code] Ce procédé est fréquemment employé comme argument de combat politique[4],[5],[6],[7],[8]. Critique du concept et définition de sa nature réelle[modifier | modifier le code]
Mythbusters fire a soccer ball at 50mph out of a cannon on a truck driving at 50mph in the opposite direction. Son remède contre le sida, les labos n'en veulent pas Doux dingue ou vrai inventeur ? Ce retraité de l'industrie pharmaceutique est convaincu d'avoir fait une découverte thérapeutique. Mais qui, selon lui, casserait le business des grands labos. Tout a commencé dans les années 1980. Revenons à sa molécule miracle, l'Amovir. Les traitements actuels du sida rapportent 70.000 euros par an et par patient, payés par la Sécu. Fin de l'histoire ? Etienne Gingembre Data brokers sell lists of rape victims, AIDS patients, privacy group finds - Dec. 18, 2013 The World Privacy Forum uncovered these lists, along with several others, while investigating how data brokers collect and sell consumer information. Marketers buy this data so they can target shoppers based on everything from their income to clothing size. Other lists the nonprofit found included the home addresses of police officers, a mailing list for domestic violence shelters (which are typically kept secret by law) and a list of people with addictive behaviors towards drug and alcohol. The mere existence of these lists highlights the need for increased government regulations, said World Privacy Forum executive director Pam Dixon. Related: What your zip code reveals about you "This is where I urge Congress to take action," she said Wednesday at a Senate committee hearing. Currently, data brokers are required by federal law to maintain the privacy of a consumer's data only if it is used for credit, employment, insurance or housing. Related: Find out what Big Data knows about you
Solar has won. Even if coal were free to burn, power stations couldn't compete | Giles Parkinson Last week, for the first time in memory, the wholesale price of electricity in Queensland fell into negative territory – in the middle of the day. For several days the price, normally around $40-$50 a megawatt hour, hovered in and around zero. Prices were deflated throughout the week, largely because of the influence of one of the newest, biggest power stations in the state – rooftop solar. “Negative pricing” moves, as they are known, are not uncommon. But they are only supposed to happen at night, when most of the population is mostly asleep, demand is down, and operators of coal fired generators are reluctant to switch off. That's not supposed to happen at lunchtime. The influx of rooftop solar has turned this model on its head. The impact has been so profound, and wholesale prices pushed down so low, that few coal generators in Australia made a profit last year. Tony Abbott, the prime minister, likes to say that Australia is a land of cheap energy and he’s half right.
Transmogrification Shaman Mail Sets Guide (WoD 6.2) - World of Warcraft Table of Contents The aim of this guide is two-fold. First, we want to show you the item sets created for Shamans: tier sets, PvP sets, BoE items meant to be worn together, craftable sets, etc.. Second, we want to show you the models of all the items that a Shaman can wear so that you can design your own sets or complete sets found on our site or elsewhere. This page tackles our first objective (item sets). For our second objective (item models), please refer to our Transmogrification Shaman Item Models Guide. Below, you will find many sets that are still available in the game and that can be used for Transmogrification. The guide ends with a More Sets section that redirects to The Visual Roleplay Gear List, which is a great resource where you will find many more sets. To take the screenshots of the item sets, we used the model viewer from Wowhead. 1. 2. 3.
Why working at home is both awesome and horrible Toronto vs. Paris Pourquoi Google s'intéresse tant à l'allongement de la vie Atlantico : Le géant du web Google a annoncé le lancement d'une nouvelle société : Calico. Cette entreprise sera en charge de s'attaquer au défi "de l'âge et des maladies associées". Pourquoi Google et son dirigeant Larry Page, s'intéressent-ils à cette question de l'allongement de vie ? Daniel Ichbiah : Larry Page par nature, est friand de défis insensés. La spécialité de Brin, c’était le "data mining". Pourtant, très vite, Page s’est donné d’autres défis de même envergure. Il en résulte toutefois que Page et Brin ont une sorte de foi dans le brassage d’immenses volumes de données. Du coup, aux USA, un nouveau marché a progressivement émergé : disposer de son génome sur soi, pourquoi pas dans son iPhone par exemple. Google étant spécialiste du "data mining", il va de soi que ce type de défi puisse intéresser Larry Page : stocker le génome de millions d’individus, et pourquoi pas – je suis sûr que cela lui plairait beaucoup – de la planète entière. Intéressé par cet auteur ? Je m'abonne