Geek Holidays - October and November: Mole Day Oct 23, Geek Halloween Oct 31, and Philosophers Days in October and November

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The Geek calendar for October and November includes Mole Day - October 23rd, honoring the scientific unit of measure known as the 'mole' (Avogadro's Number), Geek Halloween October 31st, and Philosopher Days celebrating the birthdays and honoring the anniversaries of several famous philosophers including Nietzshce, Spinoza, Hegel, Kierkegaard and Liebniz.

Geek Holidays - Geek Halloween

The Geek calendar for October and November includes Mole Day - October 23rd, Geek Halloween October 31st, and Philosopher Days celebrating the birthdays and anniversaries of several famous philosophers. On November 11 Veterans Day is observed by all.

MathematiciansPictures.com and PhilosophersPictures.com are pleased to present highlights of the Geek calendar for October and November 2008:

Mole Day - October 23

Mole Day is October 23rd, celebrating the mole, one of the first really large numbers to be used regularly in scientific calculations - the mole, otherwise known as Avogadro's Number in honor of 19th century scientist Amedeo Avogadro, whose hypothesis led to it its calculation.

How big is a Mole? Big. Around 602 billion trillion -that's 602,000,000,000,000,000,000,000.

Because that quantity - a mole - written in scientific notation looks like this: 6.02 x 10^23, Mole Day is celebrated from 6:02 am to 6:02 pm on the 10th month, 23rd day - October 23rd.

Mole Day tshirts, Mole Day posters, and Mole Day mugs are available at MathematiciansPictures.com, where you can also see cyber Avogadro reciting the essential words from his 1811 hypothesis that later led to the calculation of the mole.

The mole is used by chemists, physicists and other scientists in the development of everything from household cleaners and toothpaste to the silicon that powers computers. As a unit of measurement in chemistry it is used like we say 'a dozen' to enumerate doughnuts. But if you were counting molecules, even if you could count them at 10 million per second, it would still take 2 billion years to count a mole of molecules. So it comes in handy to be able to say "there's a mole of them."

Geek Halloween - October 31

Geeks have updated tired and trad old Halloween with "Geek Halloween".

Bespoke costume Geek Halloween tshirts featuring Pumpkin PI, VamPIres, the PI Blob, FrankenPI, Night of the Living PI, and Witches of ShakesPIre are available from MathematiciansPictures.com. Matching Geek Halloween posters and Geek Halloween mugs are also available.

Philosopher Days - October and November

Philosopher Days celebrated in October and November: October 15th -Friedrich Nietzsche birthday, October 18th -Henry Bergson birthday, November 24th - Baruch Spinoza birthday; commemorated in October and November: November 11th -Soren Kierkegaard death, November 14 -death of Georg Wilhelm Friedrich Hegel and Gottfried Wilhelm Leibniz.

Philosophers pictures, famous philosopher posters, and famous philosopher Tshirts are available from PhilosophersPictures.com, featuring pictures posters and tshirts of famous philosophers from the Greeks to modern times, including Empedocles, Heraclitus, Socrates, Plato, Aristotle, Hypatia, Thomas Aquinas, Machiavelli, Hobbes, Spinoza, Locke, Rousseau, Kant, Schopenhauer, Hegel, Kierkegaard, Nietzsche, Husserl, Bergson, and Wittgenstein. Leibniz posters and tshirts are available from MathematiciansPictures.com.

Not Just For Geeks - Veterans Day, November 11

November 11th is Veterans Day, an American holiday first proclaimed by Woodrow Wilson as Armistice Day on Nov 11, 1919, It honors military veterans from all wars, and is also observed in other parts of the world as Armistice Day or Remembrance Day.

Veterans Day posters and murals are available from FoundersOfAmerica.com, including the Gettysburg Panorama (featuring President Abraham Lincoln and the Gettysburg Address pictured superimposed over the Civil War battlefield at Gettysburg), memorial posters and pictures of the Vietnam Memorial wall, Arlington cemetery, and the Tomb of the Unknown Solider, and the Flanders Fields panorama featuring the poem by by Lieutentant Colonel John McCrae, and other Memorial Day posters, pictures, and prints.

As a spokesperson for MathematiciansPictures.com summarizes the Geek holidays for October and November: "The Geek calendar for October and November includes Mole Day - October 23rd, Geek Halloween October 31st, and Philosopher Days celebrating the birthdays and anniversaries of several famous philosophers. On November 11 Veterans Day is observed by all."

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