Low angle view of Ferris wheel against clear blue sky

The Big Wheel

The Ferris wheel may not have been a new idea, but the revolving structure offered fun—from the fairgrounds to the classroom.
Fifteen puzzle

Square Space

Not so fast, Wordle. The Fifteen Puzzle, a challenge that inspired poetry, has obsessed fans for more than a century.
Source: https://commons.wikimedia.org/wiki/File:Ada_Lovelace_portrait.jpg

Ada Lovelace, Pioneer

Ada Lovelace wrote extensive notes on the world’s first computer. Her innovations foreshadowed those used in twentieth-century PCs.
NCAA free throw math

The Math Behind the Perfect Free Throw

The fate of a free throw is set the instant the ball leaves the player’s fingertips.