Happy coincidence: Pi Day is Albert Einstein’s birthday

March 14, 2017

How many ways can we say happy birthday to a great scientist born on Pi Day?  So, an encore post.
E=mcc - logo from AIP

E=energy; m=mass; c=speed of light

Happy Einstein Day! to us.  Albert’s been dead since 1955 — sadly for us.  Our celebrations now are more for our own satisfaction and curiosity, and to honor the great man — he’s beyond caring.

Almost fitting that he was born on π Day, no? I mean, is there an E=mc² Day? He’s 138 years old today, and famous around the world for stuff that most people still don’t understand. 

Fittingly, perhaps, March 14 now is celebrated as Pi Day, in honor of that almost magical number, Pi, used to calculate the circumference of a circle. Pi is 3. 1415~, and so the American date 3/14 got tagged as Pi Day.

Albert Einstein was born on March 14, 1879, in Ulm, Germany, to Hermann and Pauline Einstein.

26 years later, three days after his birthday, he sent off the paper on the photo-electric effect; that paper would win him the Nobel Prize in Physics in 1921.

In that same year of 1905, he published three other papers, solving the mystery of Brownian motion, describing what became known as the Special Theory of Relativity and solving the mystery of why measurements of the light did not show any effects of motion as Maxwell had predicted, and a final paper that noted a particle emitting light energy loses mass. This final paper amused Einstein because it seemed so ludicrous in its logical extension that energy and matter are really the same stuff at some fundamental point, as expressed in the equation demonstrating an enormous amount of energy stored in atoms, E=mc².

Albert Einstein as a younger man - Nobel Foundation image

Albert Einstein as a younger man – Nobel Foundation image

Any one of the papers would have been a career-capper for any physicist. Einstein dashed them all off in just a few months, forever changing the fields of physics. And, you noticed: Einstein did not win a Nobel for the Special Theory of Relativity, nor for E=mc². He won it for the photo-electric effect. Irony in history. Nobel committee members didn’t understand Einstein’s other work much better than the rest of us today.

117 years later, Einstein’s work affects us every day. Relativity theory at some level I don’t fully understand makes possible the use Global Positioning Systems (GPS), which revolutionized navigation and mundane things like land surveying and microwave dish placement.

Development of nuclear power both gives us hope for an energy-rich future, and gives us fear of nuclear war. Sometimes, even the hope of the energy rich future gives us fear, as we watch and hope nuclear engineers can control the piles in nuclear power plants damaged by earthquakes and tsunami in Japan.

English: Albert Einstein on a 1966 US stamp

Albert Einstein on a 1966 US stamp (Photo credit: Wikipedia)

If Albert Einstein was a genius at physics, he was more dedicated to pacifism. He resigned his German citizenship to avoid military conscription. His pacifism made the German Nazis nervous; Einstein fled Germany in the 1930s, eventually settling in the United States. In the U.S., he was persuaded by Leo Szilard to write to President Franklin Roosevelt to suggest the U.S. start a program to develop an atomic weapon, because Germany most certainly was doing exactly that. But while urging FDR to keep up with the Germans, Einstein refused to participate in the program himself, sticking to his pacifist views. Others could, and would, design and build atomic bombs. (Maybe it’s a virus among nuclear physicists — several of those working on the Manhattan Project were pacifists, and had great difficulty reconciling the idea that the weapon they worked on to beat Germany, was deployed on Japan, which did not have a nuclear weapons program.)

English: USSR stamp dedicated to Albert Einste...

Everybody wanted to claim, and honor Einstein; USSR issued this stamp dedicated to Albert Einstein Русский: Почтовая марка СССР, посвящённая Альберту Эйнштейну (Photo credit: Wikipedia)

Einstein was a not-great father, and probably not a terribly faithful husband at first — though he did think to give his first wife, in the divorce settlement, a share of a Nobel Prize should he win it. Einstein was a good violinist, a competent sailor, an incompetent dresser, and a great character.

His sister suffered a paralyzing stroke. For many months Albert spent hours a day reading to her the newspapers and books of the day, convinced that though mute and appearing unconscious, she would benefit from hearing the words. He said he did not hold to orthodox religions, but could there be a greater show of faith in human spirit?

Einstein in 1950, five years before his death

Einstein in 1950, five years before his death

When people hear clever sayings, but forget to whom the bon mots should be attributed, Einstein is one of about five candidates to whom all sorts of things are attributed, though he never said them. (Others include Lincoln, Jefferson, Mark Twain and Will Rogers). Einstein is the only scientist in that group. So, for example, we can be quite sure Einstein never claimed that compound interest was the best idea of the 20th century. This phenomenon is symbolic of the high regard people have for the man, even though so few understand what his work was, or meant.

A most interesting man. A most important body of work. He deserves more study and regard than he gets, in history, diplomacy and science.

Does anyone know? What was Albert Einstein’s favorite pie?

More, Resources:

I get e-mail: Pi resources for classrooms, from PBS

March 14, 2017

The good folks at PBS work to provide great resources for teachers, and they’ve got some for Pi Day, as we might expect. In an e-mail, PBS said:

Discover how one number is so important and why it gets its own day!

Pi is a very special ratio which calls for a very special holiday! Learn about the origins of “Pi Day” and find out how it’s celebrated around the world by challenging your students to find the circumference of circular objects in their classroom! Discover More

Three exercises math and science teachers may find useful and fun.

Recommended Resources

Pizza Pi: Circumference and Area of a Circle – Grades: 6-8

Help students strengthen their understanding of key math concepts using real-world examples! New vocabulary includes: circumference, diameter, ratio, radius, and pi. Explore More

Calculating Pi with Darts – Grades: 6-12

Discover the immersive, perplexing, and hands-on side of physical science with Physics Girls who calculates Pi using a random sample of darts thrown at a square and circle target. Explore More

Pi and the Fibonacci Sequence – Grades: 6-12

What do flower petals, pinecones, and rivers have in common? Math! That’s right – math reveals itself in the most unexpected places. Explore intriguing appearances of Pi and the Fibonacci sequence in the natural world. Explore More

Images from PBS

A pie for a Pi! A roundup of justice on π Day!

March 14, 2017

Let’s rerun this one. Again.  I like the photographs. I may go search for a good piece of pie.

Of course you remembered that today is pi Day, right?

Pi Day Pie from Slashfood.com

Happy π Day! Pi Day Pie – Slashfood.com

Oh, or maybe better, π Day.

We’ll start with the brief post from months ago, and then build on it with some activities and posts from around the WordPress-o-sphere.

The good people at PiDay.org suggest a few ways you can celebrate:

Make (and Eat) a Pie – These pie recipes for Pi Day from NPR’s McCallister look incredibly tasty. But, there’s no shame in putting a frozen store-bought pie in the oven, or picking up a pie from your local bakery. Any kind of pie is great on Pi Day! If you’re making your own, get inspired by these beautifully designed Pi Day Pies. Tell us on Facebook: What’s your favorite kind of pie for Pi Day?

Hope your π Day is complete as a circle, and well-rounded!

How are others celebrating?  A look around WordPress:

At SocialMediaPhobe, a musical interpretation of pi featuring the music of Michael Blake:

So Long Freedom:

pidaypieToday is March 14th, also known as “Pi Day” for us math geeks out there because March 14th (3/14) is the first 3 digits of π (3.14159…).  To celebrate “Pi Day” I highly recommend doing something mathematical while having some pie at 1:59 pm.  I recommend Yumology‘s S’mores Pie as it has 3 main ingredients (chocolate, marshmallow, and graham cracker) and about 0.14159 other ingredients like sugar, butter, and stuff.  If you are not a math geek, its okay…you can still eat pie and count things like how many stop signs you pass on your way back to work from lunch.  Or you could go to the library and take out a book on something fun like binary code.  As we like to say, “There are only 10 types of people in the world:  Those that understand binary and those that don’t.”  Seriously, binary is as easy as 01000001, 01000010, 01000011.

Miles Free at PMPA Speaking of Precision:Today 3-14 at 1:59 I will be celebrqting Pi Day. 3.14159 is the value of pi to 5 decimals...

So besides being  the cause of much techie “irrational” exuberance, Pi Day  is a great way to get some engagement with students.

Marymount High School has several activities, last year they had a design competition incorporating pi; the students then made and sold buttons of each design, proceeds going to the Red Cross.

Hmm- math subject matter, design, production, sales, accounting.

Sounds like what we do in manufacturing.
Maybe celebrating Pi Day is not so irrational as first thought.

Free said his pie is peach.

Steve Doyle at CraveDFW:

On March 12, 2009 your lawmakers  passed a non-binding resolution (HRES 224) recognizing March 14, 2009 as National Pi Day. It is one of the more legit holidays we discuss here, and it is actually an homage to geeks everywhere who see the date as a reason to celebrate due to its mathematical implications. We say any reason to celebrate anything is just fine by us.

Since we are predominately about food we will suggest a few places to actually enjoy a pie.


If you followed us at all this week you may have seen the pie at Bowl and Barrel pop up on our pages. This is the uber delicious Butterscotch Pie served as the solo dessert at the bowling alley and restaurant.  Go eat one of these.

He’s got more pi pie, if you click over there.

Gareth Branwyn at MakeZine offers more pie and a mnemonic:

How to Remember Pi to 15 Digits


By way of sci-fi author and mathenaut Rudy Rucker’s Facebook wall comes this:

One way to remember the first few digits of pi is to count the letters in the words of this phrase:

“How I need a drink, alcoholic of course, after the heavy lectures involving quantum mechanics.”

[Image via FreakingNews]

Another song, on YouTube, at Awsomesauce:

b.love offers this clock image (is this clock for sale somewhere?):

A clock for pi day

TED Blog offers two videos:

Chirag Singh explains his “passion for pi.”

Daniel Tammet, “Different Ways of Knowing:

Geeks are really out in force today, flaunting pi for all they’ve got.


Hey, students! Did any of your teachers do cool stuff for Pi Day? Tell us what, and who, in comments.

Pi Day? March 14? It's also the anniversary of Einstein's birth . . . Image from Legends102.7.com

Pi Day? March 14? It’s also the anniversary of Einstein’s birth . . . see a resemblance? Image from Legends102.7.com

Yes, this is mostly an encore post. Fighting ignorance requires patience.

Yes, this is mostly an encore post. Fighting ignorance requires patience.

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