Can You Use Pi to Find the Height of an Elephant

By Anupum Pant

"International" Pi mean solar day?

Today is pi day. Pi twenty-four hour period is celebrated on March 14 at the Exploratorium in San Francisco (March fourteen is 3/xiv) at 1:59 PST which is 3.14159.

Since pi solar day is today's date written in the mm.dd (03.14) format, it could non be a pi day for most of you because dd.mm is the format used for writing dates in most countries around the world. In fact, those countries where more than half of the globe's population resides, will never have a pi day because you know, we can't accept a 14^thursday month! Pi solar day is a valid celebration for people living only in the United States (including the 49^th and northernmost state, Alaska and Hawaii of course) and Belize. Everywhere else people get zilch today?

But the imperial parts in the map use the mm.dd.yy format to write dates

Firstly, there is e'er the pi approximation day, which is celebrated on 22nd July (22/7) and uses the dd.mm format. Talking almost March 14th, at that place is much more to pi day than simply the date format itself. Allow'southward see…

Birthdays

I know, Eugene Cernan – The NASA astronaut who was the terminal human on the moon, and the one y'all can hear speaking in a popular Daft Punk Track – is one famous man who was born on pi twenty-four hour period, 79 years from now, is an American besides.

But guess what? Albert Einstein, ane of the most genius men of recent times, was born on pi day too. He was a High german built-in physicist (He did alive in the US for more than than xv years and in fact, even took his concluding breath in New Jersey)

Left to Right: Albert Einstein, Gene Cernan and the commander of Apollo 8, Frank Borman, take their birthdays on March 14, Pi Twenty-four hours.

Then, y'all run across there is a little bit of pi twenty-four hours for every i effectually the world today. It is not just an American affair. At present moving on the virtually amazing things about pi.

Irrational pi

Firstly, pi, unlike what we all are taught in school, isn't 22/7. 22 divided by vii is just an approximation of pi – it is merely 99.95975% authentic. Every bit we all know, pi is actually the ratio of a circle's circumference to its bore. A slightly meliorate approximation of pi would be 104348/33215 – which is 99.99999998944% authentic. Only, since it is an irrational number, it can never be written in the form of a fraction.

Exact Value

The exact value of pi is impossible to write in digits because the number of digits needed to write it would exist infinite and could never be fit inside the known universe.

To recall of it in some other way, if you divided the whole universe into the smallest possible volumes (plank volume), you'd end upwards with a mind bogglingly big number of volumes. Suppose you started writing the digits of pi within these niggling volumes, you'd finish up the universe and would be still left with infinite more digits to write.

The Digits of Pi

The latest record for the maximum number of known digits of pi is 12.1 Trillion digits (December 28, 2013), as calculated by Alexander J. Yee & Shigeru Kondo.  They have run out of deejay infinite to store more numbers. Here you can have a look at the first 100,000 digits of pi. And One million digits, if you need more than that.

In these get-go one one thousand thousand digits, the sequence 12345 occurs 8 times!

The Feynman Point: If you'd like to hear what pie would sound like if y'all mapped a couple of pleasant sounding notes to each of the digits of pi, attempt listening to this. If you kept listening for a while and made it till the 762th digit, yous'd hear a series of (6 of them) high frequency notes (the ones mapped to the digit nine) that become played continuously. This identify in the digits of pi is called the Feynman point where six 9s occur 1 after another. Isn't it incredible for six same numbers to be there consecutively in a random irrational number!

The Feynman point – series of six consecutive 9s highlighted in red.

Practically useful pi

Pi can exist used in real life to make a couple of things easier. For instance, if you lot were to find the size of your hat (usually measured in diameters), yous'd have a hard time measuring the bore of your head. This is what yous tin do to get a good approximation:
Measure out the circumference of your head and divide it by π.

Another one trick is used by forest guards: To gauge the height of an elephant the Bore of an elephant'southward foot is multiplied by 2 π.

Pi Jokes, facts and Coincidences

• It is an impressive coincidence that iii.14 if horizontally flipped, looks like the word "Pie". You can cheque this in the mirror.

Pi looks lie pie in the mirror

• Another one is that, the 16th Greek alphabetic character is 'Pi' and the 16th alphabetic character in the English alphabet is 'P'.
• The famous comedian John Evans once made a joke: "What practise you lot get if yous divide the circumference of a jack-o'-lantern past its bore? Pumpkin π.

• There is a cologne named pi and is sold with the following marketing mantra: "highlighting the sexual appeal of intelligent and visionary men."
• The acme of the Great Pyramid of Giza multiplied by ii π is equal to the perimeter of its base.
• The 90841th place in pi is 122189 – which is also my birth date in the mmddyy format. Find yours here and tell me in the comments below.

Download the PiDay wallpaper here.

Practice share with me in the comments, other facts about pi yous know and I oasis't covered them here.

If you lot liked this and would like to exist updated on the stories I post hither, become to the sidebar on the right side. Like my page on Facebook and subscribe to the newsletter. Information technology will hateful a lot to me.

canorearight.blogspot.com

Source: http://awesci.com/pi-day-things-you-did-not-know/#:~:text=Practically%20useful%20pi&text=Measure%20the%20circumference%20of%20your,is%20multiplied%20by%202%20%CF%80.

Share this post