Mole Day is an unofficial holiday celebrated among chemists in North America on October 23, between 6:02 AM and 6:02 PM[1], making the date 6:02 10/23 in the American style of writing dates. Lists of holidays The words holiday or vacation have related meanings in different English-speaking countries and continents but will usually refer to one of Events 4004 BC - Creation of the world begins according to the calculations of Archbishop James Ussher 42 BC - The time and date are derived from the Avogadro constant, which is approximately 6. The Avogadro constant (symbols L, N A also called Avogadro's number, is the number of "elementary entities" (usually Atoms 022×1023, defining the number of particles (atoms or molecules) in a mole, one of the seven base SI units. The mole (symbol mol) is a unit of Amount of substance: it is an SI base unit, and almost the only unit to be used to measure this
Mole Day originated in an article in The Science Teacher in the early 1980s. [2] Inspired by this article, Maurice Oehler, now a retired high school chemistry teacher from Prairie du Chien, Wisconsin, founded the National Mole Day Foundation (NMDF) on May 15, 1991. High school is the name used in some parts of the world (in particular Scotland, North America and Australia) to describe an institution Chemistry (from Egyptian kēme (chem meaning "earth") is the Science concerned with the composition structure and properties Prairie du Chien is a city in and the County seat of Crawford County, Wisconsin, United States. Events 1252 - Pope Innocent IV issues the Papal bull Ad exstirpanda, which authorizes but also limits the Year 1991 ( MCMXCI) was a Common year starting on Tuesday (link will display full calendar of the Gregorian Calendar. [2]
Many high schools around the United States and in Canada celebrate Mole Day as a way to get their students interested in chemistry, with various activities often related to chemistry or moles. The United States of America —commonly referred to as the Country to "Dominion of Canada" or "Canadian Federation" or anything else please read the Talk Page The mole (symbol mol) is a unit of Amount of substance: it is an SI base unit, and almost the only unit to be used to measure this
Contents |
Alternate observances
- Some schools celebrate Mole Day on June 2 (6/02 in MM-DD format) and occasionally February 6 (6/02 in DD-MM format), rather than October 23 (10/23), presumably from 10:23 AM to 10:23 PM. Events 455 - The Vandals enter Rome, and plunder the city for two weeks Events 46 BC - Julius Caesar defeats the combined army of Pompeian followers and Numidians under Metellus Scipio Often either of these is instituted as a "second" mole day for schools that run on semester rather than yearly basis, to give both semesters' worth of students an opportunity to celebrate.
- Some schools celebrate "Mole Week" around October 23.
- The American Chemical Society sponsors National Chemistry Week, which occurs from the Sunday through Saturday during October in which the 23rd falls. National Chemistry Week (NCW is an annual event held in the USA to raise public awareness of the importance of Chemistry in everyday life This makes Mole Day an integral part of National Chemistry Week.
See also
References
- ^ American Chemical Society. Pi Day and Pi Approximation Day are two Holidays held to celebrate the Mathematical constant π (pi Square root day is a humorous Holiday celebrated on dates where the day and the month are both the Square root of the last two digits in the current year Activities: NCW. Retrieved on 2007-07-10. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 48 BC - Battle of Dyrrhachium, Julius Caesar barely avoids a catastrophic defeat to Pompey in Macedonia.
- ^ a b History of National Mole Day Foundation, Inc
External links
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic