关于圆周率日的趣事与庆祝方式
树莓派 Pi 圆周率

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> 技术团队喜欢 3 月 14 日的圆周率日：你是否知道这也是阿尔伯特·爱因斯坦的生日和 Linux 内核1.0.0 发布周年纪念日？来看一些树莓派的趣事和 DIY 项目。
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![](/data/attachment/album/201903/14/105705ghguqklz9m0glu8u.png)


今天，全世界的技术团队都会为一个数字庆祝。3 月 14 日是<ruby> 圆周率日 <rt>  Pi Day </rt></ruby>，人们会在这一天举行吃派比赛、披萨舞会，玩<ruby> 数学梗 <rt>  math puns </rt></ruby>。如果这个数学领域中的重要常数不足以让 3 月 14 日成为一个节日的话，再加上爱因斯坦的生日、Linux 内核 1.0.0 发布的周年纪念日，莱伊·惠特尼在这一天申请了轧花机的专利这些原因，应该足够了吧。（LCTT译注：[轧花机](https://zh.wikipedia.org/wiki/%E8%BB%8B%E6%A3%89%E6%A9%9F)是一种快速而且简单地分开棉花纤维和种子的机器，生产力比人手分离高得多。）


很荣幸，我们能在这一个特殊的日子里一起了解有关它的趣事和与 π 相关的好玩的活动。来吧，和你的团队一起庆祝圆周率日：找一两个点子来进行团队建设，或用新兴技术做一个项目。如果你有为这个大家所喜爱的无限小数庆祝的独特方式，请在评论区与大家分享。


### 圆周率日的庆祝方法：


* 今天是圆周率日的第 31 次周年纪念（LCTT 译注：本文写于 2018 年的圆周率日，故在细节上存在出入。例如今天（2019 年 3 月 14 日）是圆周率日的第 31 次周年纪念)。第一次为它庆祝是在旧金山的<ruby> 探索博物馆 <rt>  Exploratorium </rt></ruby>由物理学家 Larry Shaw 举行。“在[第 1 次周年纪念日](https://www.exploratorium.edu/pi/pi-day-history)当天，工作人员带来了水果派和茶壶来庆祝它。在 1 点 59 分（圆周率中紧接着 3.14 的数字），Shaw 在博物馆外领着队伍环馆一周。队伍中用扩音器播放着‘Pomp and Circumstance’。” 直到 21 年后，在 2009 年 3 月，圆周率正式成为了美国的法定假日。
* 虽然该纪念日起源于旧金山，可规模最大的庆祝活动却是在普林斯顿举行的，这个小镇举办了为期五天的[许多活动](https://princetontourcompany.com/activities/pi-day/)，包括爱因斯坦模仿比赛、掷派比赛，圆周率背诵比赛等等。其中的某些活动甚至会给获胜者提供价值 314.5 美元的奖金。
* <ruby> 麻省理工的斯隆管理学院 <rt>  MIT Sloan School of Management </rt></ruby>正在庆祝圆周率日。他们在 Twitter 上分享着关于 π 和派的圆周率日趣事，详情请关注<ruby> 推特话题 <rt>  Twitter hashtag </rt></ruby> #PiVersusPie 。


### 与圆周率有关的项目与活动：


* 如果你想锻炼你的数学技能，<ruby> 美国国家航空航天局 <rt>  National Aeronautics and Space Administration </rt></ruby>（NASA）的<ruby> 喷气推进实验室 <rt>  Jet Propulsion Lab </rt></ruby>（JPL）发布了[一系列新的数学问题](https://www.jpl.nasa.gov/news/news.php?feature=7074)，希望通过这些问题展现如何把圆周率用于空间探索。这也是美国国家航天局面向学生举办的第五届圆周率日挑战。
* 想要领略圆周率日的精神，最好的方法也许就是开展一个[树莓派](https://opensource.com/resources/raspberry-pi)项目了，无论是和你的孩子还是和你的团队一起完成，都是不错的。树莓派作为一项从 2012 年开启的项目，现在已经售出了数百万块的基本型的电脑主板。事实上，它已经在[通用计算机畅销榜上排名第三](https://www.theverge.com/circuitbreaker/2017/3/17/14962170/raspberry-pi-sales-12-5-million-five-years-beats-commodore-64)了。这里列举一些可能会吸引你的树莓派项目或活动：
	+ 来自谷歌的<ruby> 自己做 AI <rt>  AI-Yourself </rt></ruby>（AIY）项目让你自己创造一个[语音控制的数字助手](http://www.zdnet.com/article/raspberry-pi-this-google-kit-will-turn-your-pi-into-a-voice-controlled-digital-assistant/)或者[一个图像识别设备](http://www.zdnet.com/article/google-offers-raspberry-pi-owners-this-new-ai-vision-kit-to-spot-cats-people-emotions/)。
	+ 在树莓派上[使用 Kubernets](https://opensource.com/article/17/3/kubernetes-raspberry-pi)。
	+ 组装一台[怀旧游戏系统](https://opensource.com/article/18/1/retro-gaming)，目标：拯救桃子公主！
	+ 和你的团队举办一场[树莓派 Jam](https://opensource.com/article/17/5/how-run-raspberry-pi-meetup)。树莓派基金会发布了一个帮助大家顺利举办活动的[指导手册](https://www.raspberrypi.org/blog/support-raspberry-jam-community/)。据该网站说明，树莓派 Jam 旨在“给数字创作中所有年龄段的人提供支持，让世界各地志同道合的人们汇聚起来讨论和分享他们的最新项目，举办讲习班，讨论和派相关的一切。”


### 其他有关圆周率的事情：


* 当前背诵圆周率的[世界纪录保持者](http://www.pi-world-ranking-list.com/index.php?page=lists&category=pi)是 Suresh Kumar Sharma，他在 2015 年 10 月花了 17 小时零 14 分钟背出了 70,030 位数字。然而，[非官方记录](https://www.theguardian.com/science/alexs-adventures-in-numberland/2015/mar/13/pi-day-2015-memory-memorisation-world-record-japanese-akira-haraguchi)的保持者 Akira Haraguchi 声称他可以背出 111,700 位数字。
* 现在，已知的圆周率数字的长度比以往都要多。在 2016 年 11 月，R&D 科学家 Peter Trueb 计算出了 22,459,157,718,361 位圆周率数字，比 2013 年的世界记录多了 [9 万亿数字](https://www.newscientist.com/article/2124418-celebrate-pi-day-with-9-trillion-more-digits-than-ever-before/?utm_medium=Social&utm_campaign=Echobox&utm_source=Facebook&utm_term=Autofeed&cmpid=SOC%7CNSNS%7C2017-Echobox#link_time=1489480071)。据《<ruby> 新科学家 <rt>  New Scientist </rt></ruby>》所述，“最终文件包含了圆周率的 22 万亿位数字，大小接近 9 TB。如果将其打印出来，能用数百万本 1000 页的书装满一整个图书馆。”


祝你圆周率日快乐！


![](/data/attachment/album/201903/14/141758q25yd9yd6e3ojxj5.jpg)




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via: <https://enterprisersproject.com/article/2018/3/pi-day-12-fun-facts-and-ways-celebrate>


作者：[Carla Rudder](https://enterprisersproject.com/user/crudder) 译者：[wwhio](https://github.com/wwhio) 校对：[wxy](https://github.com/wxy)


本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出


OK
Today, tech teams around the world will celebrate a number. March 14 (written 3/14 in the United States) is known as Pi Day, a holiday that people ring in with pie eating contests, pizza parties, and math puns. If the most important number in mathematics wasn’t enough of a reason to reach for a slice of pie, March 14 also happens to be Albert Einstein’s birthday, the release anniversary of Linux kernel 1.0.0, and the day Eli Whitney patented the cotton gin.

In honor of this special day, we’ve rounded up a dozen fun facts and interesting pi-related projects. Master you team’s Pi Day trivia, or borrow an idea or two for a team-building exercise. Do a project with a budding technologist. And let us know in the comments if you are doing anything unique to celebrate everyone’s favorite never-ending number.

## Pi Day celebrations:

- Today is the 30
thanniversary of Pi Day. The first was held in 1988 in San Francisco at the Exploratorium by physicist Larry Shaw. “On[the first Pi Day](https://www.exploratorium.edu/pi/pi-day-history), staff brought in fruit pies and a tea urn for the celebration. At 1:59 – the pi numbers that follow 3.14 – Shaw led a circular parade around the museum with his boombox blaring the digits of pi to the music of ‘Pomp and Circumstance.’” It wasn’t until 21 years later, March 2009, that Pi Day became an official national holiday in the U.S. - Although it started in San Francisco, one of the biggest Pi Day celebrations can be found in Princeton. The town holds a
[number of events](https://princetontourcompany.com/activities/pi-day/)over the course of five days, including an Einstein look-alike contest, a pie-throwing event, and a pi recitation competition. Some of the activities even offer a cash prize of $314.15 for the winner. - MIT Sloan School of Management (on Twitter as
[@MITSloan](https://twitter.com/MITSloan)) is celebrating Pi Day with fun facts about pi – and pie. Follow along with the Twitter hashtag #PiVersusPie

## Pi-related projects and activities:

- If you want to keep your math skills sharpened, NASA Jet Propulsion Lab has posted a
[new set of math problems](https://www.jpl.nasa.gov/news/news.php?feature=7074)that illustrate how pi can be used to unlock the mysteries of space. This marks the fifth year of NASA’s Pi Day Challenge, geared toward students. - There's no better way to get into the spirit of Pi Day than to take on a
[Raspberry Pi](https://opensource.com/resources/raspberry-pi)project. Whether you are looking for a project to do with your kids or with your team, there’s no shortage of ideas out there. Since its launch in 2012, millions of the basic computer boards have been sold. In fact, it’s the[third best-selling general purpose computer](https://www.theverge.com/circuitbreaker/2017/3/17/14962170/raspberry-pi-sales-12-5-million-five-years-beats-commodore-64)of all time. Here are a few Raspberry Pi projects and activities that caught our eye:- Grab an AIY (AI-Yourself) kit from Google. You can create a
[voice-controlled digital assistant](http://www.zdnet.com/article/raspberry-pi-this-google-kit-will-turn-your-pi-into-a-voice-controlled-digital-assistant/)or an[image-recognition device](http://www.zdnet.com/article/google-offers-raspberry-pi-owners-this-new-ai-vision-kit-to-spot-cats-people-emotions/). [Run Kubernetes](https://opensource.com/article/17/3/kubernetes-raspberry-pi)on a Raspberry Pi.- Save Princess Peach by building a
[retro gaming system](https://opensource.com/article/18/1/retro-gaming). - Host a
[Raspberry Jam](https://opensource.com/article/17/5/how-run-raspberry-pi-meetup)with your team. The Raspberry Pi Foundation has released a[Guidebook](https://www.raspberrypi.org/blog/support-raspberry-jam-community/)to make hosting easy. According to the website, Raspberry Jams provide, “a support network for people of all ages in digital making. All around the world, like-minded people meet up to discuss and share their latest projects, give workshops, and chat about all things Pi.”

- Grab an AIY (AI-Yourself) kit from Google. You can create a

## Other fun Pi facts:


- The current
[world record holder](http://www.pi-world-ranking-list.com/index.php?page=lists&category=pi)for reciting pi is Suresh Kumar Sharma, who in October 2015 recited 70,030 digits. It took him 17 hours and 14 minutes to do so. However, the[unofficial record](https://www.theguardian.com/science/alexs-adventures-in-numberland/2015/mar/13/pi-day-2015-memory-memorisation-world-record-japanese-akira-haraguchi)goes to Akira Haraguchi, who claims he can recite up to 111,700 digits. - And, there’s more to remember than ever before. In November 2016, R&D scientist Peter Trueb calculated 22,459,157,718,361 digits of pi –
[9 trillion more digits](https://www.newscientist.com/article/2124418-celebrate-pi-day-with-9-trillion-more-digits-than-ever-before/?utm_medium=Social&utm_campaign=Echobox&utm_source=Facebook&utm_term=Autofeed&cmpid=SOC%7CNSNS%7C2017-Echobox#link_time=1489480071)than the previous world record set in 2013. According to New Scientist, “The final file containing the 22 trillion digits of pi is nearly 9 terabytes in size. If printed out, it would fill a library of several million books containing a thousand pages each."

Happy Pi Day!

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