Since 2012, I celebrate Pi Approximation Day by approximating pi with streetchalk.
- What: Approximate pi with street chalk (similar to Pi Day)
- When: Pi Approximation Day (that is, July 22nd) from 7:22 AM, then approximately one hour
- Where: Uppsala Slott, Uppsala, which is a 10 minutes walk from the central station (see map below)
- To bring:
- (optional) a box of street chalk
- (optional) knee protectors
- Costs: nothing :-)
If rain is predicted, at 22:00 the day before, the event will be cancelled, which will be displayed in the status indicator here:
2024: Probably
How to get to the Slott
The square at the Slott
I celebrated alone this year, reaching 50 digits.
I celebrated this time with BE and Ix. We did 200 digits.
I celebrated it alone this year, for the first time in Uppsala, for 62 digits, which I did twice 👍.
Took me only half an hour and a third of a bucket of streetchalk, as the concrete is smooth.
I celebrated it alone this year, for 40 digits 👍.
We were with:
- J.D.
- S.D.
- V.D
- W.D
We approximated 447 digits of pi.
We were with:
- B. S-B.
- J.D.
- M.B.
- P. S-B.
- R. B.
- R. G.
We approximated 500 digits of pi, breaking all earlier records!
Photo's from the Sikkom news item:
Since 2012, I celebrate Pi Approximation Day by approximating pi with streetchalk at the Noorderplantsoen Groningen. In 2017 we were with six: B. S-B., C.IJ., J.K, M. S-B., P. S-B and me. We reached 247 digits behind the comma.
Our pi was filmed by the YouTube user Bhut_Trolokia, see his video here.
Out pi got mentioned in a news article by sikkom. The text in the article, however, is complete nonsense.
Here are the photos, thanks to C.IJ.
Since 2012, I celebrate Pi Approximation Day by approximating pi with streetchalk at the Noorderplantsoen Groningen. This year I was helped by C.IJ. and we reached approximately 150 (nice) - 200 (sloppy) digits behind the comma.
Since 2012, I celebrate Pi Approximation Day by approximating pi with streetchalk at the Noorderplantsoen Groningen. This year I was helped by C.IJ. and we reached exactly 314 digits behind the comma.
Since 2012, I celebrate Pi Approximation Day by approximating pi with streetchalk at the Noorderplantsoen Groningen. This year I reached exactly 100 digits behind the comma.
Since 2012, I celebrate Pi Approximation Day by approximating pi with streetchalk at the Noorderplantsoen Groningen. In 2013, a local newspaper found out:
Thanks to the people that found out this article was written!
2012 was the first your I celebrated Pi Approximation Day by approximating pi with streetchalk at the Noorderplantsoen Groningen.
Due to this unorthodox hour, we can work relatively undisturbed. It is the KNMI time of sunrise, which means that there will be light to see.
At the first of any of these conditions:
- We've gone round the pond once
- Out of street chalk
- Not enjoying it anymore
With 5 people, it takes one and a half hour to get round the pond.
To go round the pond once, one needs approx five boxes of street chalk.
On Linux, install pi:
sudo apt-get install pi
then:
pi 2000 | espeak -s 10 -g 10
Or read out the text file:
cat pi.txt | espeak -s 10 -g 10
