- October 23 -

Mole Day

Mole Day is an unofficial holiday celebrated among chemists and chemistry students on October 23, between 6:02 AM and 6:02 PM, making the date 6:02 10/23 in the American style of writing dates. The time and date are derived from Avogadro's number, which is approximately 6.02×1023, defining the...

Mole Day

Mole Day is an unofficial holiday celebrated among chemists and chemistry students on October 23, between 6:02 AM and 6:02 PM, making the date 6:02 10/23 in the American style of writing dates. The time and date are derived from Avogadro's number, which is approximately 6.02×1023, defining the number of particles (atoms or molecules) in one mole of substance, one of the seven base SI units.
Mole Day originated in an article in The Science Teacher in the early 1980s. 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.
Many high schools around the United States, South Africa, Australia 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.

Mole Day traces its origins to an article that appeared in The Science Teacher magazine in the early 1980s about a high school chemistry teacher's reasons for celebrating the day. The idea for Mole Day took root. Today Mole Day is celebrated around the world.
Source:
http://en.wikipedia.org/wiki/Mole_Day
http://chemistry.about.com/od/historyofchemistry/a/mole-day.htm

Categories:

You may also like...

Interesting events from Science category.

Earth's Rotation Day

On January 8, 1851, French Physicist Leon Foucault invented a pendulum device to prove the Earth’s rotation. It had long been believed that the Earth rotated, but Focault discovered that he could demonstrate this with a simple experiment using a tall pendulum with a heavy weight. He...

Space Shuttle Challenger disaster

The Space Shuttle Challenger disaster occurred on January 28, 1986, when Space Shuttle Challenger (mission STS-51-L) broke apart 73 seconds into its flight, leading to the deaths of its seven crew members. The spacecraft disintegrated over the Atlantic Ocean, off the coast of central Florida at...

Birth of the Modern Automobile

The Benz Patent-Motorwagen (or motorcar), built in 1886, is widely regarded as the first automobile; that is, a vehicle designed to be propelled by a motor. The vehicle was awarded the German patent, number 37435, for which Karl Benz applied on January 29 , 1886. Following...

Pistol Patent Day

A Colt Paterson is a revolver. It was the first commercial repeating firearm employing a revolving cylinder with multiple chambers aligned with a single, stationary barrel. Its design was patented by Samuel Colt on February 25, 1836, in the United States, France, and England, and it derived its...

International Astrology Day

International Astrology Day (most often observed on either March 20 or March 21) is an annual observance/holiday celebrated by astrologers and astrology enthusiasts. It is seen by astrologers as the beginning (first day) of the astrological year. It is the first full day of the astrological sign of...

International Day of Human Space Flight

The General Assembly, in its resolution A/RES/65/271 of 7 April 2011, declared 12 April as the International Day of Human Space Flight “to celebrate each year at the international level the beginning of the space era for mankind, reaffirming the important contribution of space science and...

Download KeepIn Calendar

Enjoy the interesting stories even on your phone or tablet