- #1

- 18,954

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On 3.14.15 at 9:26:53

3.141592653

Set your alarms!

3.141592653

Set your alarms!

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- Thread starter Greg Bernhardt
- Start date

- #1

- 18,954

- 9,272

On 3.14.15 at 9:26:53

3.141592653

Set your alarms!

3.141592653

Set your alarms!

- #2

- 18,212

- 11,224

Greg, you are very strange

- #3

sk1105

- 88

- 12

We don't get a pi day in the UK

- #4

- 18,954

- 9,272

Start a movement! I'm calling for it to be a national holiday!We don't get a pi day in the UK

- #5

Ben Niehoff

Science Advisor

Gold Member

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Start a movement! I'm calling for it to be a national holiday!

But there's no April 31. :\ Best you can do is 22/7.

- #6

Psinter

- 275

- 787

Awesome!On 3.14.15 at 9:26:53

3.141592653

Set your alarms!

Already set! With AM and PM there is twice the chance!

- #7

fourier jr

- 757

- 13

- #8

- 10,342

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I'm also in the UK. :(

- #9

Raghav Gupta

- 1,011

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And people around here, guess what is the speciality about next day after this day celebration?

- #10

gravenewworld

- 1,127

- 26

- #11

Silicon Waffle

- 162

- 203

I'm not flying out of here any time soon. So I will try again and again. Have a nice weekend everyone!

- #12

leroyjenkens

- 610

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3/14/15 was 2000 years ago.

- #13

fourier jr

- 757

- 13

we should celebrate tau day instead

- #14

256bits

Gold Member

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Next PI Day is,

(20)31 April 15

(20)31 April 15

- #15

nuuskur

Science Advisor

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- #16

Blackberg

- 29

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Poor e.

- #17

mfb

Mentor

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2.7.18 is in three years.

- #18

DrGreg

Science Advisor

Gold Member

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According to one website, as April 31 is purely imaginary, it is [itex]i[/itex]-day!But there's no April 31. :\ Best you can do is 22/7.

- #19

mfb

Mentor

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You celebrate it at midnight between April 30 and May 1 (a public holiday in many countries!)?

- #20

- 10,342

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And since [itex]e^{i\pi}=-1[/itex]we can celebrate on the day before! April 30th it is!According to one website, as April 31 is purely imaginary, it is [itex]i[/itex]-day!

Last edited:

- #21

nuuskur

Science Advisor

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[itex]e^{i\pi} = -1[/itex] you mean :)

- #22

- 10,342

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That's what I wrote.[itex]e^{i\pi} = -1[/itex] you mean :)

<Wanders off, whistling innocently>

- #23

Blackberg

- 29

- 20

2.7.18 is in three years.

I think e deserves it.

Many numbers do stand on its shoulder.

- #24

March 14, 1592 with Pi moments at 6:53:58.xxx... AM and PM.

Note: this is using a standard 12 hour digital watch display format ( _h:mm:ss.xxx...) allowing 1 digit hours from 0 to 9 and two digit for 10 to 12, but insisting on two digit minutes and seconds. With decimal fraction on the seconds, you can take .xxx..., the actual moment out to an accuracy approaching a jiffy if so desired (Planck time of about 5.4 × 10−44 Seconds).

Another somewhat ultimate Pi day will be:

March 14, 15926 with Pi minutes at 5:35 AM and PM. The format using dual digit seconds would exceeds 59, ergo the smallest interval is minutes.

The next year that we can attain the same accuracy level of accuracy (seconds) as 1592 and thus a moment is:

March 14, 159,265,389,793 2:38:46 AM & PM. Quite a bit into the future.

We really missed the boat by not being around in 1592. Note I didn't try any BCE dates.

Now a question for the much smarter than I. Is mathematics a pure science or is it corrupted by our 4 dimensional space-time (if not our human brains)? The essence being here, because Pi is a never ending decimal, will the Pi moment be an infinite string of numbers or will it end at some increment slightly before the jiffy. My understanding (quite limited) is that the jiffy is the shortest time interval in our universe, any thing shorter you are in the quantum foam. I suppose we could have an infinitely short theoretical Pi moment and and a discrete actual physical Pi moment. The philosophical quandary here being, can we actually have a Pi moment or are we limited to something that approaches a Pi moment. 10^-44 is quite a long moment compared to an infinite negative exponent. I doubt I will lose any sleep pondering this tonight.

- #25

fourier jr

- 757

- 13

http://www.scientificamerican.com/article/the-best-pi-day-pies-and-celebrations/

- #26

March 14, 1592 with Pi moments at 6:53:58.xxx... AM and PM.

Note: this is using a standard 12 hour digital watch display format ( _h:mm:ss.xxx...) allowing 1 digit hours from 0 to 9 and two digit for 10 to 12, but insisting on two digit minutes and seconds. With decimal fraction on the seconds, you can take .xxx..., the actual moment out to an accuracy approaching a jiffy if so desired (Planck time of about 5.4 × 10−44 Seconds).

Another somewhat ultimate Pi day will be:

March 14, 15926 with Pi minutes at 5:35 AM and PM. The format using dual digit seconds would exceeds 59, ergo the smallest interval is minutes.

The next year that we can attain the same accuracy level of accuracy (seconds) as 1592 and thus a moment is:

March 14,159,265,389,7932:38:46 AM & PM. Quite a bit into the future.

We really missed the boat by not being around in 1592. Note I didn't try any BCE dates.

Now a question for the much smarter than I. Is mathematics a pure science or is it corrupted by our 4 dimensional space-time (if not our human brains)? The essence being here, because Pi is a never ending decimal, will the Pi moment be an infinite string of numbers or will it end at some increment slightly before the jiffy. My understanding (quite limited) is that the jiffy is the shortest time interval in our universe, any thing shorter you are in the quantum foam. I suppose we could have an infinitely short theoretical Pi moment and and a discrete actual physical Pi moment. The philosophical quandary here being, can we actually have a Pi moment or are we limited to something that approaches a Pi moment. 10^-44 is quite a long moment compared to an infinite negative exponent. I doubt I will lose any sleep pondering this tonight.

EDIT 3/20/15, ERROR CORRECTION:

- #27

mfb

Mentor

- 36,295

- 13,372

Let's hope the strange month/day/year format has been abandoned then.On the last date in the above post, at 159 billion years in the future, incredibly I somehow missed a digit in the original post. How exactly I did that when I copied an pasted the number is beyond me. I must of inadvertently deleted a digit when I put the commas in. In any event the date has been corrected below in bold. It was only 1.433 trillion year error.

EDIT 3/20/15, ERROR CORRECTION:

March 14, 1,592,653,589,793 2:38:46.xxx...

In the highly unlikely case that there will still be something using our current date format at all.

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