Pi Day, celebrated annually on March 14, honours the mathematical constant Pi ... It was widely accepted after Leonhard Euler used the symbol Pi in 1737. Physicist Shaw linked Pi's digits with ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Trees depicted in ...

The DMK-led Tamil Nadu government has decided to remove the official rupee symbol (₹) from the state’s Budget 2025, replacing it with the Tamil script. This marks the first time a state has ...