LE 12 GIF CHE VI FARANNO CAPIRE LA MATEMATICA IN UN ATTIMO Da oggi in poi matematica e geometria non sarà più un vostro incubo. Il motivo? Abbiamo deciso di aiutarvi suggerendovi alcune gif che vi faranno capire visivamente alcuni dei più comuni problemi di matematica e geometria. Ripassiamo insieme l’enunciato del teorema: In un triangolo rettangolo la somma delle aree dei due quadrati costruiti sui cateti è uguale all’area del quadrato costruito sull’ipotenusa. Guardate un po’ le gif animate qui di seguito e capirete anche il perché è effettivamente così. Teorema di Pitagora La seconda è ancora più immediata, facendo vedere come l’area liquida si sposta riempiendo perfettamente le aree. Teorema di Pitagora “liquido” La tangente, può essere definita come una linea che tocca una superficie senza incrociarla. Rappresentazione della tangente Nella gif si vede chiaramente la linea che passa per il centro del cerchio, creando la funzione della tangente che conosciamo, spiegata in due modi diversi. Costruzione di un quadrato inscritto in una cironferenza
Fresh set of pictures of UFO alien landing in 1947 from FBI Vault (PHOTOS) A memo released online by the Federal Bureau of Investigation in its 'Vault' has emerged as proof for the famed landing -- or crash or capture -- of a flying saucer with three dead aliens in Roswell in New Mexico in June 1947. The memo was published on The Vault, a newly-launched FBI blog that showcases documents from the Bureau's past for history buffs to peruse. It was written by Guy Hottel, the special agent in charge of the Washington field office in 1950, and was addressed to the director of the FBI, J. Edgar Hoover. The letter's content is amazing, as is the casual tone in which it's delivered. It reads: Three so-called flying saucers had been recovered in New Mexico. The report, which is registered on the FBI's online Vault library, then goes on to describe the 3ft human-like bodies of the aliens among the remains of the UFO landing.
Big Bang According to the Big Bang model, the universe expanded from an extremely dense and hot state and continues to expand today. The graphic scheme above is an artist's concept illustrating the expansion of a portion of a flat universe. The Big Bang is the scientific theory that is most consistent with observations of the past and present states of the universe, and it is widely accepted within the scientific community. It offers a comprehensive explanation for a broad range of observed phenomena, including the abundance of light elements, the cosmic microwave background, large scale structure, and the Hubble diagram. The core ideas of the Big Bang—the expansion, the early hot state, the formation of light elements, and the formation of galaxies—are derived from these and other observations. Overview Timeline of the Big Bang The earliest phases of the Big Bang are subject to much speculation. Underlying assumptions FLRW metric
Louis Renault et André Citroen - Histoire Immédiate - France3 World Population Clock: 7 Billion People (2013) - Worldometers World Population: Past, Present, and Future (move and expand the bar at the bottom of the chart to navigate through time) The chart above illustrates how world population has changed throughout history. View the full tabulated data. At the dawn of agriculture, about 8000 B.C., the population of the world was approximately 5 million. Over the 8,000-year period up to 1 A.D. it grew to 200 million (some estimate 300 million or even 600, suggesting how imprecise population estimates of early historical periods can be), with a growth rate of under 0.05% per year. A tremendous change occurred with the industrial revolution: whereas it had taken all of human history until around 1800 for world population to reach one billion, the second billion was achieved in only 130 years (1930), the third billion in 30 years (1960), the fourth billion in 15 years (1974), and the fifth billion in only 13 years (1987). Wonder how big was the world's population when you were born? Growth Rate 10 Billion (2055)
Euclid: The Game - Tutorial Photo Album Alphabet The letters in the Greek alphabet presented below are used for printed Ancient Greek texts. The earliest Greek texts that have survived were written with a radically different script called Linear B. For a detailed and wonderfully well argued discussion of the origins of the Greek alphabet, see Roger D. Woodard’s book, Greek Writing from Knossos to Homer. You can find fonts for displaying or writing Greek text as well as utilities for converting older fonts to the new Unicode standarde on our fonts page. Three sets of pronunciation suggestions are given in the table below: first the pronunciation of each letter in Modern Greek, then the reconstructed Hellenistic Koine pronunciation, and finally the reconstructed pronunciation for the Classical period (before about 350 BCE). The Erasmian pronunciation used in many schools to teach Biblical Greek and sometimes even Classical Greek is not given on this page. Modern th as in then (but not thin. Modern th as in thin, but not in then. Roger D.
L'histoire du monde Les révolution signification des couleurs - Page 3 Signification de la couleur des pays du monde. (M) Alphabétisation par M. Le drapeau de la Macédoine : est composé d'un soleil jaune à 8 rayons sur un ciel rouge. Il a été adopté le 5 octobre 1995. Le drapeau de Madagascar :est ledrapeau national et le pavillon national de la République de Madagascar. Le drapeau de la Malaisie :est le drapeau civil, le drapeau d'État et pavillon d'État de la Malaisie. Le drapeau du Malawi :Adopté le29 juillet 2010 suite à la proposition faite par le Parti démocrate-progressiste au gouvernement malawite. Le drapeau des Maldives :est le drapeau national et le pavillon national de la République des Maldives. Le drapeau du Mali : Adopté le 1er mars 1961, composé de 3 bandes verticales et égales de couleur verte, or et rouge. Le drapeau de Malte :Est officiellement adopté en même temps que la constitution maltaise le 21 septembre 1964, jour de l'indépendance. Le drapeau du Maroc :est l’emblème du Royaume du Maroc. Alphabétisation par N. Alphabétisation par O.
Why Are You People Defending Apple? As you’ve doubtless heard by now, yesterday Apple revealed its new fee structure for premium content: all apps that offer premium content outside of the App Store have to also offer it via Apple’s official in-app purchases (this includes Amazon’s Kindle) and Apple takes a 30% cut of all subscriptions. The response has predictably ranged from outrage to approval — my colleague MG Siegler did a thorough piece talking about why this makes sense for Apple and users, even if it may leave developers up in arms. But I’m still having a hard time swallowing it. My reaction has been one of trepidation. I don’t like where this is headed, and I think that many who consider themselves technophiles are completely dropping the ball by rationalizing what Apple has done. The first mistake people are making has been to focus on whether or not this move is Apple’s prerogative. Yes, that’s right: Apple isn’t the best at everything. Which brings us to why I find all of this so alarming.