![File:Wi-Fi challenge Pi equation in microMathematics Plus 2.15.6 on Android 2.3.png - Wikimedia Commons File:Wi-Fi challenge Pi equation in microMathematics Plus 2.15.6 on Android 2.3.png - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/0/0f/Wi-Fi_challenge_Pi_equation_in_microMathematics_Plus_2.15.6_on_Android_2.3.png)
File:Wi-Fi challenge Pi equation in microMathematics Plus 2.15.6 on Android 2.3.png - Wikimedia Commons
![Rhett Allain on Twitter: "11/ That means that if you know the value of g, you can use the period of a pendulum to calculate Pi. https://t.co/utevLSCLuL https://t.co/jV055oLRfj" / Twitter Rhett Allain on Twitter: "11/ That means that if you know the value of g, you can use the period of a pendulum to calculate Pi. https://t.co/utevLSCLuL https://t.co/jV055oLRfj" / Twitter](https://pbs.twimg.com/media/D1okfHRXgAEYYjj.png)
Rhett Allain on Twitter: "11/ That means that if you know the value of g, you can use the period of a pendulum to calculate Pi. https://t.co/utevLSCLuL https://t.co/jV055oLRfj" / Twitter
![Pi in the sky: Calculating a record-breaking 31.4 trillion digits of Archimedes' constant on Google Cloud | Google Cloud Blog Pi in the sky: Calculating a record-breaking 31.4 trillion digits of Archimedes' constant on Google Cloud | Google Cloud Blog](https://storage.googleapis.com/gweb-cloudblog-publish/images/2019-03-11_pi_graphic_02.1899108430781900.max-2200x2200.png)