Holidays Related to Numbers与数字有关的节日

In recent years， mathematicians and scientists have begun campaigns to mark certain dates in celebration of significant principles and here are a few to add to your calendar.

近年来，数学家和科学家为某些特定日期发起一些活动以庆祝那些有重大意义的定律。这里有一些可以添加到你的日历中。

Mole Day 摩尔日

Mole Day is celebrated annually on Oct. 23 from 6：02 am to 6：02 pm. It remembers Avogadros Constant （6.02×10??）， which is a basic measuring unit in chemistry. A mole of any substance contains Avogadros number of elementary particles.

The concept of the celebratory day was created by Maurice Oehler， a retired high school chemistry teacher from Wisconsin， the US. The Mole Day was created in 1991 and has been honored every year since then. Each Mole Day has a specific theme. People hope to use the day to develop interest in chemistry， encouraging schools around the globe to celebrate Mole Day with various activities related to chemistry.

摩尔日的庆祝通常是在10月23日的上午6：02到下午6：02，以纪念阿伏伽德罗常量（6.02×1023）。阿伏伽德罗常量是化学中的一个基本测量单位。每一摩尔任何物质含有阿伏伽德罗常量个微粒。

庆祝这一节日的想法由莫里斯·奥勒尔提出，他是来自美国威斯康星州的一位退休高中化学老师。摩尔日创立于1991年，此后每年都被庆祝。每一届摩尔日都有不同的主题。通过鼓励世界各地的学校开展各种与化学相关的活动来庆祝摩尔日，人们希望用这一天来培养人们对化学的兴趣。

Square Root Day 平方根日

Square Root Day is a holiday that heartily honors those dates where the combination of day and month and year forms square roots： e.g. 2/2/2004 and 3/3/2009. The last Square Root Day was 4/4/2016 and the next one will be 5/5/2025.

The holiday was created by a high school teacher Ron Gordon in California， the US. Square Root Day now has its own website where celebrants can gather.

平方根日，就是日、月均为年份最后两位数构成的数字的平方根，如2004年2月2日、2009年3月3日。上一次的平方根日是2016年4月4日，下一次的平方根日将在2025年5月5日。

平方根日由美国加利福尼亚州的高中老师罗恩·戈登创立。现在设立有平方根日网站，人们可以在那里庆祝。

Fibonacci Day 斐波那契日

November 23 is Fibonacci Day， an annual holiday that honors one of the most influential mathematicians of the Middle Ages—Leonardo Fibonacci.

The Fibonacci sequence， also known as the rabbit sequence， the golden section sequence， refers to a sequence such as： 1，1， 2， 3， 5， 8，13， 21... In this sequence， the value of each number is equal to the sum of its two preceding numbers. It was discovered by Fibonacci in Pisa， Italy， and has direct applications in modern physics， quasicrystal structure， chemistry and other fields.

11月23日是斐波那契纪念日，该节日每年被庆祝，以纪念中世纪最有影响力的数学家之一——列昂纳多·斐波那契。

斐波那契数列，又称兔子数列，黄金分割数列，指的是这样一个数列：1，1，2，3，5，8，13，21…。在这个数列中，每一个数字的值都等于它前面两个数字的和。该数列是由意大利比萨市的斐波那契发现的，在现代物理、准晶体结构、化学等领域，斐波那契数列都有直接的应用。

Pi Day 圆周率日

As a significant day for “math-man”， March 14th is the day that cant be missed. It is identified as the International Pi Day. The earliest known large-scale Pi-themed celebration was organized by Larry Shaw， a physicist on March 14th， 1988， at the San Francisco Science Museum.

On March 12th， 2009， the US House of Representatives passed a resolution declaring March 14th as National Pi Day.

作為“数学人”的重大节日，3月14日不可错过，它是一年一度的国际圆周率日。已知最早的大型的以圆周率为主题的庆祝活动是由物理学家拉里·肖于1988年3月14日组织，在旧金山科学博物馆举行。

2009年3月12日，美国众议院通过一项决议，声明3月14日是全国圆周率日。

Word Study

preceding /pr?'si?d??/ adj. 在前的，前面的

This point has been dealt with in the preceding paragraph.

resolution /'rez?'lu??n/ n. 决议；正式决定

The committee have passed a resolution that conditions should be improved.