![Cliff Pickover on Twitter: "Amazing formula: calculate any digit of Pi without knowing any preceding digits. https://t.co/bcZ7h9pMpZ https://t.co/bW9UIv7vL5" / Twitter Cliff Pickover on Twitter: "Amazing formula: calculate any digit of Pi without knowing any preceding digits. https://t.co/bcZ7h9pMpZ https://t.co/bW9UIv7vL5" / Twitter](https://pbs.twimg.com/media/BitM5OpCEAEP-mz.png)
Cliff Pickover on Twitter: "Amazing formula: calculate any digit of Pi without knowing any preceding digits. https://t.co/bcZ7h9pMpZ https://t.co/bW9UIv7vL5" / 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 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
![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)