Letters Archive

The Mold that Changed Medicine

The Mold that Changed Medicine
How did a messy lab lead to a life-saving medicine? The tale of penicillin begins with a scientist's dirty dishes.

The Price Tag Puzzle

The Price Tag Puzzle
Is a $100 mug on sale for $30 really a better deal than a $30 mug? Uncover the sneaky mind trick that makes us think so!

The Price Puzzle: Why Costs Change

Did you know airplane tickets can cost less on the day of travel? Uncover the secrets behind ever-changing prices!

Tools for Thought: Expanding Your Mind's Reach

Tools for Thought: Expanding Your Mind's Reach
Discover how a simple checklist can supercharge your memory and become a powerful tool for your mind!

What if it wasn't Taylor Swift?

What if it wasn't Taylor Swift?
What if a beloved author wrote a book in secret? Uncover how a hidden identity transformed an overlooked novel into an overnight sensation.

Comet Tsuchinshan–ATLAS's fleeting visit

Comet Tsuchinshan–ATLAS's fleeting visit
A cosmic snowball from the depths of space is making a rare visit. Can you spot this ancient traveler before it disappears for another 80,000 years?

Clever Hans - the horse who could do math

Clever Hans - the horse who could do math
Imagine a horse that could do math and read German! Uncover the surprising truth behind Clever Hans and how he fooled the world.

How do you teach a computer?

How do you teach a computer?
Want to teach a computer to find hidden connections between names? Let's explore how a simple program can reveal the secrets hidden in letters!