Tuesday, July 28, 2009

Blood In Phlegm Normal

Who invented these words? (Etymology) Develop Hand Sanitizer

ETYMOLOGY


The etymology comes from the Latin word "etymologies" and that the Greek ἐτυμολογία (etymologies). It is a learned ἐτυμος formed (etymos = true), λογος (logos = word) and the suffix-ed used to create nouns that express a relationship to something. Ie means "related to the truth of the word."

Word "étimo" deriva del griego étymos y se refiere a la raíz o palabra de la que procede un vocablo. Por ejemplo, la palabra padre en castellano, al igual que padre (italiano), pai (portugués), pare (catalán), paire (occitano), père (francés), babbu (sardo), bab (retorrománico), tienen todos el étimo latino pater.

La raíz griega λογος (logos = palabra) es muy común en la creación de términos que expresan una relación con palabras. Ver, por ejemplo: diálogo, filólogo, y prólogo.

Los cultismos son palabras introducidas por filósofos, escritores y científicos para expresar conceptos lacking in ordinary language. Many cultism are taken directly from Latin or Greek, so do not suffer the normal processing of the words heritage. The words can also become property of the Latin or Greek, but they sound change as language evolves.

immediate etymology explains the last consignment of a word. In the case of the word etymology, the latter would be of Latin origin. The reason is that during the Renaissance (XVI-XVII centuries) Latin, the language of the Romans, Caesar, Cicero, Pliny and Virgil becomes the lingua franca of Europe. That is, the universities, the Church and diplomacy communicated in Latin. The first etymological dictionaries were written in Latin, one of the most famous is Etymologiarum libri XX St. Isidore of Seville (560-636). But the ancient Greek philosophers and differentiate between the concepts of (1) definition and (2) origin. Even Cicero uses the word veriloquium (true speech) when translated into the Greek classics, but says he prefers the word notatio (notation):

Ea est autem, cum ex argumentum elicitur vi nominis, quam Graecia etumologian appellant, id est verbum ex veriloquium verb, we novitatem autem verbi non satis hoc genus notationem apti fugientes appellamus, quia verba sunt rerum note. Itaquara appellat symbolon hoc Aristoteles quidem, quod est Latine note. Sed quid cum intellegitur significetur, minus est nomine laborandum.

Many arguments are derived from observation and so it follows that the meaning of a word, which the Greeks called etymology, which would be word for word veriloquium. But we avoid the novelty of the word, we call this type notation, because the words are notes. Why Aristotle called symbols. to note what we say in Latin. But when we understand its significance, the least important is his name.

Cicero, Topics, XXVII 35

cultism and etymology The immediate usually are young and still have some documentation. Using manuscripts and printed texts can prove who was the person who coined some word and when he did. See for example: entropy, folklore, hormone, malware, panspermia, vitamin, and television.

immediate Etymology philologists leaves dissatisfied. They want to know every word evolutionary transitions. These are very interesting especially when a word crosses several languages \u200b\u200bover time (see: sopaipilla savings), changes of meaning across a language (see: kangaroo) or return to the same language, but with an accent (see: barbecue) or with different meanings (see: gay and medal).

The desire to understand the origin of words leads people to invent or "deduce" its origin without a scientific basis. A This is called etymology.

scholars follow the tracks of words over time and geography based on historical events, rules of structure, derivation, composition, euphony, and grammar of the original language, spelling and prosodic changes, in order to reach the original etymology. The original etymology is the native language, or without having been taken from another language. So the scholars came to imagine a proto-language indoeropea, which talk about 6000 years back and that would be the basis of Sanskrit (language of India), Greek and Latin. This language will give us the lexeme-leg (talk), which would be the root of the word λογος (logos = word).



Material taken from: Etimologías.dechile.net



Some examples of words with interesting etymologies are:


1. candidate : (definition) a person seeking office or distinction. (Etymology) from the Latin "candidatus" and it's "candidum" (white) in Rome as anyone aspiring to public office should be a person unblemished and spotless, which is why that person dressed, being given a white robe.

2. Hopefully : (definition) Interjection denoting strong desire to make something happen. (Etymology) from the Arabic "wa sha Allah" if Allah (God) wants.

3. Monday: First day of the week, second week liturgy. (Etymology) from the Latin "Moon dies" (day of the moon). The Romans devoted this day to the moon. Vulgar Latin came to as "Lunis dies." In other languages \u200b\u200b("Montag" in German and "Monday" in English) is also dedicated this day to the Moon.

4. Gringo : (definition) abroad, especially English-speaking. U.S.. (Etymology) of the English words "go green." During the war between Mexico and the United States U.S. battalions were identified by color. There was a battalion 'blue', the 'network', the 'green', etc. In the battlefield Mexicans move to the U.S. heard the cry of "go green, go green" and dubbed with the name of "gringo."

5. Hippo : (definition) Mammal pachyderm big body who lives in the great rivers of Africa. (Etymology) From the Greek "hippos" horse "Potamós" river, ie river horse.

6. salary: (definition) pay or regular pay. Amount of money that is paid to employees. (Etymology) from the Latin "salarium." In ancient Rome, salt was an article of great commercial value and are transported by the Via Salaria "from the salt marshes of Ostia, crossing the Apennines to the Adriatic Sea. The Roman soldiers guarding the route received part of their pay in salt, which was called "salarium argentum."

7. vaccine (Definition) Ready to be bites a person or animal to prevent disease. (etymology) from the Latin "vaccinus' (cattle) from" vacca "(cow). In 1796, the English country doctor Edward Jenner observed that contact with cattle farmers acquired a mild illness similar to "cow pox" and were immune to smallpox. Jenner took a sample of "cow pox" by the hand of the farmer's wife Sarah Nelmes and inoculated in the arm of eight-year-old James Phipps who developed symptoms of cow pox infection. Later Jenner injected the child smallpox infection, but this time without the disease.

8. Beggar : (definition) calling alms. (etymology) The beggars begging invoking God, with formulas such as "charity, by God." The beggar came word of the phrase "by God" to which was added the suffix "-ero", indicative of profession or trade.

9. Alarm : (definition) notice or sign which occurs in an army to be prepared immediately to the defense or combat. (Etymology) From Italy "all'arme!" (To arms!) Which was the cry which gave the Italian soldiers when attacked.

10. Calendar : (definition) Almanac. Registration day of the year divided by months weeks. (etymology) from the Latin "Kalendarium" which meant "record, book of accounts of a creditor" in Rome as the monthly interest on loans was paid in the "Kalends", ie, the first day of the month. The ending-Aryan, the Latin-Ariu (m), meaning "whole, ready to" (as ABC).



From: www.juegodepalabras.com



For a more detailed etymology can see the etymological dictionary: www.elcastellano.org / word



YOU TUBE VIDEO ON "THE IMPORTANCE THE ETYMOLOGY OF WORDS "





Note: This video starts a little fuzzy, but then it looks pretty good. Contains a teacher's explanation of how the etymology is for everyday use.



Remember to use these sources for the drafting of your index cards.

Thursday, July 23, 2009

1/87 Construction Dioramas

Home

The following recipes to carry hand sanitizer home, were created based on internet sources. These recipes were recalibrated in part by a science teacher for the percentage of alcohol in their preparation was the minimum acceptable (60% or more) for their effectiveness.






Recipe # 1 2 / 3 cups of 91% isopropyl alcohol

1 / 3 cup of aloe vera gel

8 to 10 drops of essential oil (optional)

bowl and spoon

empty container and properly sterilized.

Procedure:

1. Mixing alcohol with aloe vera gel until smooth.

2. Add the drops of essential oil (if you want flavor in the mix).

3. Place the mixture in the container with a lid.

Alcohol content: 65%






Recipe # 2 2 parts aloe vera gel

1 part distilled water (not tap water)

1 part vodka, grain alcohol (not isopropyl alcohol)

4 or 5 drops of essential oil of Tea Tree (said to be has antiseptic properties).

Procedure:

Mix all ingredients and place in a covered container. Avoid using metal utensils in the preparation of the mixture, which can cause some reaction to the natural oils in the mix.

* Recipe # 3: Family quantities

* This last recipe is a personal mix of the above ingredients and know the exact percentage of alcohol that is the end the process. I trust that meets the minimum requirements of 65%:

6 oz of aloe vera gel (specifically the version that contains 40% alcohol can get the aloe vera gel in the cosmetics section at pharmacies).

3 / 4 of a pack of 16 oz, 91% isopropyl alcohol


Procedure:

Mix ingredients in a resealable plastic bag (Ziploc type) to create a sterile environment as possible and then divide into equal portions in covered containers and spray.


Note: If someone with knowledge of chemistry can calculate the percentage of alcohol present in this last recipe home and let us know, would be greatly appreciated. It also has suggestions for the measures it. THANKS!

how to properly use hand sanitizers A:



VIDEOS RELATED TO THE HAND sanitizers:

I. A little humor for kids:



II. This recipe has several ingredients and know its availability in stores or pharmacies:



II. VIDEO RELATED TO THE SYMPTOMS OF INFLUENZA:



III. MEASURES TO PREVENT THE SPREAD OF INFLUENZA:

Tuesday, July 14, 2009

Motorcycle Image Templates For Cakes

Saharan Dust reduces possibility of hurricanes


wearing the orange sky of the Caribbean Sea during the hot summer are caused by thin layers of dust from the African continent. High temperatures, low humidity and cloud cover of fog outside the season are indicative of the existence of fine dust particles (smaller than a hundred microns) carried over from the African continent into the Caribbean Sea.

The Sahara desert can be considered an "incubator" sandstorms that rise into the atmosphere large amounts of dust at altitudes of 5 to 7 km, forming a mass of hot air and humidity of just 3% which covers an area of \u200b\u200babout 800 km, affecting areas like the Islands Canary Islands, Spain, Portugal, Britain and the Caribbean islands.

Sandstorms are a product of the clash between the hot desert air with the cooler air of the Sahel region (south of the Sahara). The trade winds are responsible for this mass is transported across the Atlantic to reach the Caribbean. Although during the year are usually formed several dust storms in the African region, the frequency of fog Saharan increases between May and August, thus having the highest incidence peaks between June and July.

The Saharan dust is the main suspect in the high incidence of respiratory illness during the summer months. He is also credited to be responsible for the so called red tides (large concentrations of red algae due to increased salinity of the sea). However, not all effects of Saharan dust are negative.

The presence of dust reduces the size of raindrops and inhibits the formation of clouds of large vertical forming a dry climate. There has also been a reduction in sea surface temperatures due a cloud of dust that blocked sunlight before it hit the ocean. Research suggests such dust outbreaks may inhibit hurricane formation.

NASA satellites have provided evidence that the cooling effect of dust was responsible for one third of the drop in sea surface temperatures in the North Atlantic between June 2005 and 2006, possibly contributing to the difference in hurricane activity between the two stations. The heat stored in warm ocean surfaces is known that fuels hurricanes, creating stronger storms and more frequent.

Amato Evan, a researcher at the Cooperative Institute Meteorological Satellite Studies, University of Wisconsin-Madison, studied more than 25 years of data gathered by satellites from 1981 to 2006, and noticed the correlation. Found that during periods of intense hurricane activity, dust was relatively scarce in the atmosphere. On the other hand, in the years when dust storms rose up stronger, fewer hurricanes swept across the Atlantic.

If scientists conclusively prove that dust helps mitigate the hurricane, those responsible for weather forecasts could one day begin to track atmospheric dust and take it into account for the first time in their predictions.

scientists are increasingly devoting attention to the environmental impact of dust, having found that in some years, many millions of tons of sand rise from the Sahara Desert and float across the Atlantic Ocean, sometimes in just five days.

The new study's authors argue that the dusty layers of air probably help reduce hurricane activity in training because they need heat and moisture to feed. This effect could also mean that these dust storms have the potential to change the direction of a hurricane.

While the work of the University of Wisconsin-Madison that dust does not confirm that directly influence hurricanes, it does provide important evidence that both phenomena are related in some way. "We do not know if the dust affects the hurricanes directly, or whether both (dust and hurricanes) respond to the same global atmospheric changes of the tropical Atlantic."

remains then open the gap between those who believe that the Saharan dust is the main ingredient in the formation of hurricanes, because the genesis of these often happens in that region, and those who have recently discovered that this dense layer Traveling could be the shield against hurricanes.

MAP SATELLITE ON DENSITY OF DUST SAHARA:



View
cimss.ssec.wisc.edu maps


RELATED VIDEOS SAHARA DESERT:







HURRICANE RELATED VIDEOS





SOURCES:

CIMS.SSEC.WISC.EDU

METEORED.COM

GEOSALUD.COM

SOLOCIENCIA.COM

** Remember to write your bibliography card for these sources.

Sunday, July 12, 2009

Paddle Boats And Skytower Sea World Price

Fractions: cooling the concept

Quite a few students who feel insecure when dealing with fractions. The simple terms, proper fraction, improper, homogeneous, reducible, we feel that we are speaking a foreign language to us. This overview of concepts related to fractions will help strengthen and refresh all we know about the concept. DEFINITION



The word "faction" comes from the Latin "scud" meaning "broken or cracked."


REPRESENTATION
The fraction is composed of a numerator and a denominator:

fractions can be represented in various ways, and the fraction "three divided by four," "three four" or "three quarters" can be written any of these ways:


÷ 4 * 3 * 3: 4
* 3 / 4

In this example, the number 3 is called the numerator and the denominator 4. Fractions are rational numbers, which means that the numerator and denominator are integers. Also represented in decimal results in 0.75, same result is obtained by dividing 3 ÷ 4. In the case of a graphical representation could imagine a circle divided into four parts of equal proportion, which would withdraw one of the four parties, the following three remaining parts represent the fraction 3 / 4.




VIDEO RELATED TO THE READING OF FRACTIONS:





TYPES OF FRACTIONS There are several ways to classify fractions, these include the following:

1. According to the relationship between the numerator and denominator:

a) Fraction own: fraction has the denominator greater than its numerator: 3 / 6, 2 / 5, 3 / 4
b) improper fraction: fraction where the denominator is less than the numerator: 13 / 6, 18 / 8, 4 / 2

2. According to the relationship between the denominators:

a) homogeneous fraction: fractions that have the same denominator: 3 / 4 and 7 / 4
b) heterogeneous fraction: fractions with different denominators.

3. According to the relationship between the numerator and denominator:

a) Reducible fraction: fraction whose numerator and denominator are coprime and can be simplified.
b) irreducible fraction: fraction whose numerator and denominator are coprime, and therefore can not be simplified.

4. Other classifications:

a) Fraction Unit: common fraction numerator 1.
b) Fraction egyptian representation system in ancient Egypt fractions where each fraction is expressed as the sum of unit fractions.
c) apparent or integer fraction: fraction representing the whole: 3 / 3 = 1 4 / 4 = 1
d) Fraction decimal fraction whose denominator is a power of ten. It can also be a fraction expressed in base 10, as opposed to binary fractions others, which are expressed in other numbering systems.
e) mixed fraction is the sum of an integer and a fraction. Mixed fractions can be expressed as fractions.
f) A fraction is irrational, given that all the factions should be able to be expressed as vulgar fractions, a self-contradictory term. An irrational number is, by definition, not rational, ie can not be expressed as a vulgar fraction.
g) A continued fraction is an expression like this:

x = a_0 + \frac{1}{a_1 + \frac{1}{a_2 + \frac{1}{a_3+\dots}}}


h) composite fraction: fraction whose numerator or denominator (or both) has to time fractions.
i) partial fraction, which can be used to decompose a rational function.
j) Fraction as a reason: Allows you to question what relationship are? and highlighting their relationship a couple of numbers that can come from a comparison.

FRACTIONS RELATED VIDEOS:





mathematical operations FRACTIONS





Resources:

Wikipedia: Fractions

www.videosdematematicas.com

Simple activities on fractions Fractions

www.escolar.com

Math Activities Fractions

Operations with Fractions Interactive Math




NOTE: In a future posting will show step by step mathematical operations related to fractions.

Wednesday, July 8, 2009

Mayonnaise In Packets How Long Does

International Phonetic Alphabet (IPA)

DEFINITION

The International Phonetic Alphabet (IPA) is a system of phonetic notation based on the Latin alphabet, devised by the International Phonetic Association as a standardized representation of the sounds of spoken language. The IPA is used by foreign language students and teachers, linguists, speech pathologists and therapists, singers, actors, lexicographers, and translators.

The IPA is designed to represent only those qualities of speech that are distinctive in spoken language: phonemes, intonation, and the separation of words and syllables. To represent additional qualities of speech such as tooth gnashing, lisping, and sounds made with a cleft palate, an extended set of symbols called the Extensions to the IPA is used.

HISTORY

In 1886, a group of French and British language teachers, led by the French linguist Paul Passy, formed what would come to be known (from 1897 onwards) as the International Phonetic Association (in French, l’Association phonétique internationale). The original alphabet was based on a spelling reform for English known as the Romic alphabet, but in order to make it usable for other languages, the values of the symbols were allowed to vary from language to language.

DESCRIPTION

The general principle of the IPA is to provide one symbol for each distinctive sound (or speech segment).This means that it does not use letter combinations to represent single sounds, or single letters to represent multiple sounds (the way represents [ks] or [gz] in English). There are no letters that have context-dependent sound values (as does in English and other European languages), and finally, the IPA does not usually have separate letters for two sounds if no known language makes a distinction between them (a property known as "selectiveness").

Among the symbols of the IPA, 107 represent consonants and vowels, 31 are diacritics that are used to further specify these sounds, and 19 are used to indicate such qualities as length, tone, stress, and intonation.

LETTERS

The International Phonetic Alphabet divides its letter symbols into three categories: pulmonic consonants, non-pulmonic consonants, and vowels. Each character is assigned a number, to prevent confusion between similar letters (such as ɵ and θ), for example in printing manuscripts. Different categories of sounds are assigned different ranges of numbers.

PULMONIC CONSONANT




A pulmonic consonant is a consonant made by obstructing the glottis (the space between the vocal cords) or oral cavity (the mouth) and either simultaneously or subsequently letting out air from the lungs. Pulmonic consonants make up the majority of consonants in the IPA, as well as in human language. All consonants in the English language fall into this category.

NON PULMONIC CONSONANTS




Non-pulmonic consonants are sounds whose airflow is not dependent on the lungs. These include clicks (found in the Khoisan languages of Africa), implosives (found in languages such as Swahili) and ejectives (found in many Amerindian and Caucasian languages).

VOWELS

The IPA defines a vowel as a sound which occurs at a syllable center. Below is a chart depicting the vowels of the IPA. The IPA maps the vowels according to the position of the tongue.



(Images from WIKIPEDIA)

The vertical axis of the chart is mapped by vowel height. Vowels pronounced with the tongue lowered are at the bottom, and vowels pronounced with the tongue raised are at the top. For example, [ɑ] (said as the "a" in "palm") is at the bottom because the tongue is lowered in this position. However, [i] (said as the vowel in "meet") is at the top because the sound is said with the tongue raised to the roof of the mouth.

In a similar fashion, the horizontal axis of the chart is determined by vowel backness. Vowels with the tongue moved towards the front of the mouth (such as [ɛ], the vowel in "met") are to the left in the chart, while those in which it is moved to the back (such as [ʌ], the vowel in "but") are placed to the right in the chart.

In places where vowels are paired, the right represents a rounded vowel (in which the lips are rounded) while the left is its unrounded counterpart.

MORE ABOUT PHONETICS

The following You Tube video contents a video lesson about PHONETICS.



Created by :

Mister Duncan (England)
Lesson 36
Duncan in China

RESUME CHART OF PHONETIC SOUNDS



HERES A FUNNY VIDEO ABOUT IPA:


To read about

in English Phonetics visit International Phonetic Alphabet (WIKIPEDIA)

ARE OTHER IMPORTANT SOURCES:

International Phonetic Alphabet (Wikipedia)

Saturday, July 4, 2009

Complaints For Vein Clinic Of America

Mathematics: On the "IP" PYRAMIDS OF THE WORLD

π name

The notation the Greek letter π comes from the initial words of Greek origin "περιφέρεια" (periphery) and "περίμετρον" (perimeter) of a circle. This notation was first used in 1706 by Welsh mathematician William Jones and popularized by mathematician Leonhard Euler in his book "Introduction to Calculus" in 1748. It was formerly known as Ludolph constant (after the mathematician Ludolph van Ceulaer) or as Archimedes' constant (not to be confused with Archimedes number).

rational and transcendental number

is an irrational number, which means it can not be expressed as a fraction of two integers, as demonstrated by Johann Heinrich Lambert in 1761 (or 1767). It is also a transcendental number, ie it is not the root of any polynomial with integer coefficients. In the nineteenth century German mathematician Ferdinand Lindemann showed this fact, thereby permanently closing the permanent and intensive research on the problem of squaring the circle indicating that no solution.

also know that π is not a Liouville number (Mahler, 1953), ie not only momentous but can not be approximated by a sequence of sound "fast converging" (Stoneham 1970). History

calculation of the value of π


Search the largest number of decimal places the number π has been a constant effort of many scientists throughout history. Some historical approaches π are as follows.

Ancient Egypt: (In modern notation)

S = \pi r^2 \simeq \left( \frac{8}{9} \cdot d \right)^2 = \frac{64}{81} d^2 = \frac{64}{81} \left(4 r^2\right)

\pi \simeq \frac{256}{81} = 3{,}16049 \ldots



Mesopotamia


Some mathematicians Mesopotamians used in the calculation of segments, values \u200b\u200bof π equal to 3, reaching some cases approximate values, as 3 + 1 / 8.

Biblical references

One of the oldest indirect references approximate value of π can be found in a verse from the Bible:

"He also cast a sea of \u200b\u200bten cubits from one side to another, perfectly round. He was five cubits high and around a line of thirty cubits. "
I Kings 7:23 (Reina-Valera 1995)

A similar quote can be found in II Chronicles 4:2. It appears in a list of requirements for the construction of the Great Temple of Solomon, built on the 950 a. C. Both appointments are 3 as the value of π is a significant loss of accuracy compared to previous estimates of Egyptian and Mesopotamian.

The Greek mathematician Archimedes (third century BC) was able to determine the value of π, including the range of 3 10/71, the minimum value, and 3 seventh, the maximum value. With this approach Archimedes is obtained with an error value ranging between 0.024% and 0.040% on the actual value. The method used by Archimedes was very simple and consisted circumscribe and inscribe regular polygons of n-sided circles and calculate the perimeter of these polygons. Archimedes started with hexagons circumscribed and inscribed, and was doubling the number of sides to reach a 96-sided polygons.

Around 20 d. C., the Roman architect and engineer Vitruvius π calculated as the fractional value 25 / 8 by measuring the distance traveled in one revolution by a wheel of known diameter.

In the second century, Ptolemy provides a fractional value of approaches:

\pi \simeq \frac{377}{120} = 3{,}1416 \ldots


China
Mathematics

The calculation of pi was an attraction for the math experts from all cultures. By 120, the Chinese astrologer Chang Hong (78-139) was among the first to use the approximation \sqrt {10} that deduced from the ratio of the volume of a cube and sphere respective registered. A century later, the astronomer Wang Fang estimated at 142/45 (3.155555), although the method is unknown. A few years later, around 263, the mathematician Liu Hui was the first to suggest that 3.14 was a good approach, using a polygon de 96 o 192 lados. Posteriormente estimó π como 3,14159 empleando un polígono de 3.072 lados.

A finales del siglo V, el matemático y astrónomo chino Zu Chongzhi calculó el valor de π en 3,1415926 al que llamó «valor por defecto» y 3,1415927 «valor por exceso», y dio dos aproximaciones racionales de π: 22/7 y 355/113 muy conocidas ambas,siendo la última aproximación tan buena y precisa que no fue igualada hasta más de nueve siglos después, en el siglo XV.



Matemática india

Usando un polígono regular inscripto de 384 lados, a finales del siglo V Indian mathematician Aryabhata estimated value 3.1416. A mid-seventh century, estimating the approximation error of Aryabhata, Brahmagupta estimated π as \sqrt {10}, calculation much less precise than its predecessor. Around 1400 Madhava get an accurate approximation to 11 digits (3.14159265359), being the first series used for estimation.



Islamic Mathematics

IXAl In the century-Khwarizmi in his "Algebra" ( Hisab to ua to muqabala Jabr) notes that the practical man used 22 / 7 as the value of π, the geometer uses 3, and the astronomer 3.1416. In the fifteenth century, the mathematician Persian Ghiyath al-Kashi was able to calculate the approximate value of π with nine digits, using a sexagesimal numerical basis, which equates to an accuracy of 16 decimal digits: 2π = 6.2831853071795865.

European Renaissance

From the twelfth century, with the use of Arabic numerals in the calculations are greatly facilitated the possibility of obtaining better estimates for π. The mathematician Fibonacci, in his "Practice Geometriae" amplifies the Archimedes method, providing a narrower range. Some mathematicians of the seventeenth century, as Viète, up to 393,216 polygons used to approximate sides with good accuracy at 3.141592653. In 1593 Adriaan van flamenco Room ( Adrianus Romanus) obtained an accuracy of 16 decimal digits using the Archimedes method. Interesting Facts

  • On July 22 (22 / 7) is the day devoted to the approximation of π . The
  • March 14 (3 / 14 date formats USA) is also marked as the day pi where fans are celebrating this issue with different actions. Curiously, it is Einstein's birthday .
  • 355/113 (~ 3.1415929) is sometimes referred to as a quasi-perfect simulation! The
  • A9.com search engine users who choose shop amazon.com as offer discounts (π / 2)% on purchases.
  • John Squire (of the band The Stone Roses ) π mentioned in a song written for his second band, The Seahorses called "Something Tells Me." The song ends with a lyric like: "What's the secret of life? It's 3.14159265, yeah yeah!".
  • The first million digits of π and its inverse 1 / π can be found at the Gutenberg Project or this link.
  • numbering versions of word processing program TeX of Donald Knuth run as the digits of π. The version of 2002 was labeled with
  • 3.141592
  • this number is used in the series of signals from the earth in order to be identified by an extraterrestrial intelligent civilization.
  • The probability that two positive integers are randomly chosen prime each is 6 / π 2
  • online programs are looking for your phone number in the first digits of π 50,000,000
  • In some programming languages \u200b\u200b can find many digits as you want by simply using expressions like: RealDigits [N [Pi, 105]] in ' Mathematica. "
  • In 2002 Japanese Akira Haraguchi broke the world record for 13 hours reciting 83,431 digits of pi without stopping, doubling the previous record also held by the Japanese Hiroyuki Goto. The October 4 2006 of , at 1:30 am, and after 16 hours, Haraguchi again broke his own record by reciting pi digits 100,000, making a stop each two hours 10 minutes for air.
  • The maximum number of digits of π required to find any sequence day-month-year with four digits in the decimal expansion of pi is 60,872.
  • There is a Kate Bush song called "Pi" in which are recited over twenty-digit decimal number.
  • In Argentina, the mobile phone number for emergencies in underground train stations and the number Pi: \u200b\u200b3.1416.
  • The main value of the expression i i is a real number and is given by
    i^i=\left(e^{i\pi /2}\right)^i=e^{i^2\pi /2}=e^{-\pi /2}=0.207879...
  • The website thinkgeek.com shirts and accessories can be purchased with π. In the link you can see a T-shirt is constructed π letter with his first 4493 digits.
  • In England a crop circle that appeared to be investigated by scientists Statians State proved that his meaning was that of π (pi) A vehicle
  • Mazda 3 amended, which was added 27 digits of π after 3. Srinivasa Ramanujan
  • published an approximate solution, with ruler and compass, the square Circle in 1913 where he received a segment approximately equal to r \sqrt{\pi}:
\mbox{segmento} =\frac{d}{2}\sqrt{\frac{355}{113}}\approx r\sqrt{\pi}


For further information please visit their main source:

Wikipedia.Org