Happy pi day

Sat 14 March 2015
English: Pi Pie, created at Delft University o...

Pi Pie (Photo credit: Wikipedia)

On this Pi day , I would like to enumerate all uses of pi I know. There are more ( listed here ):

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Category: useless Tagged: Pi Day maths useless

Music reflection: timeline and publications

Sat 18 January 2014

[caption id="" align="alignright" width="350"]English: artificial omni-directional sound sou... sound research material (Photo credit: Wikipedia)[/caption]

I just discover google music timeline. That leads me to several publications from google about music.

I wonder why does google work on music. Google is a commercial company whose business model is based on ads and …

Category: maths Tagged: Business model Google Play Publication search engine Timeline maths music reflections

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